Types of Questions: The Space of Answers, Presuppositions, and the Openness of the Unknown

1. Statement of the Problem

A question is not a neutral request for information from an already finished reality. When asking a question, the subject distinguishes a subject matter, determines what exactly is still unknown, and frequently establishes in advance the form in which an answer is expected.

“Do you agree?”, “What happened?”, “Why did this happen?”, and “What other possibilities have we not yet distinguished?” are not four ways of requesting the same thing. Each question performs its own operation upon what is being investigated: it establishes different initial certainties and leaves different things unknown.

The central distinction: not knowing the answer does not mean that the question itself is open. One may not know which answer is correct while already regarding the set of admissible answers as established. One can also pose a question in such a way that what is called into doubt is not an answer within the proposed form but the form of questioning itself.

First, two basic modes of questioning are distinguished: discovering the unknown and determining something within an already specified space of possibilities. Then types of questions are considered, along with distinctions between their grammatical construction, subject matter, presuppositions, boundaries of admissible answers, and communicative action. The resulting typology is not declared an exhaustive list of all questions: it is itself a means of distinction whose boundaries can be investigated.

2. The Question as an Operation of the Subject

In a question, at least six elements must be distinguished:

The questioning subject. Who poses the question, and why this particular subject matter becomes significant to them.
The subject matter of the question. What is being asked about: an event, relationship, cause, meaning, possibility, ground, or the question itself.
What has already been accepted. Which assertions, distinctions, and categories are considered established before the answer.
What is sought. Which distinction needs to be discovered or which value needs to be established.
The space of recognized answers. What the questioner is prepared to accept as a substantive answer.
The possibility of revising the question. Whether the questioning admits discovery of the error, insufficiency, or inapplicability of its own presuppositions.

These elements are not identical to the grammatical form of a sentence. Questions with the same form can perform different actions; questions with different forms can preserve the same closed presupposition.

It is especially important to distinguish the proposed set of answers from the boundaries of reality. The fact that a subject has listed A and B does not establish that nothing exists beyond A and B.

3. Two Basic Modes of Questioning: Discovering the Unknown and Determining from What Is Given

Behind the variety of question constructions, two basic modes of questioning can be distinguished. The basis for this distinction is neither grammatical nor thematic. It lies in what is already determined for the subject before an answer is given, and what the questioning itself is directed toward.

3.1. A Question Aimed at Discovering the Unknown

“What is present here that we have not yet distinguished?”

In this mode, the subject is directed toward discovering content that is not necessarily represented among the alternatives already known to them. What is unknown may be not merely a specific value, but the distinction itself, a category, an explanation, or a way of posing the problem.

Examples:

“What is actually happening here?”
“What did this action arise from?”
“Which distinction are we missing?”
“On what grounds did we distinguish precisely these causes in the first place?”

An answer may introduce content not previously anticipated, change the boundaries of the subject matter, render previous alternatives inapplicable, or reveal that the initial description was insufficient.

This does not mean that the question arises without any form: an object must already be distinguished and attention directed toward it. Openness consists not in the absence of presuppositions, but in the possibility of discovering content that will change the presuppositions themselves.

3.2. A Question Aimed at Determination Among Already Specified Possibilities

“Which of the already distinguished values actually obtains?”

In this mode, the subject possesses some space of alternatives, parameters, or values. What remains undetermined is which of them should be established in the case under consideration.

Examples:

“Is this A or B?”
“Do you agree or disagree?”
“Which of the three mechanisms distinguished is operating here?”
“What value does this parameter take?”

It is essential to distinguish choice from establishment. In a choice, the subject determines which alternative they will prefer or enact. In establishment, they determine which alternative actually corresponds to the subject matter. These are two different operations, although both may take place within a previously distinguished space.

This mode does not require the proposed system of alternatives to be true or exhaustive. It describes a way of posing the question, not proof that reality must fit into that formulation.

3.3. The Two Modes Are Not Identical to Two Grammatical Types of Questions

These modes cannot mechanically be identified with the division into “open” and “closed” questions.

The same grammatical question can be used differently:

“Why did this happen?” may open a search for an explanation not previously known.
The same question may presume that the cause must already belong to one of the known classes and demand only that the correct class be named.
“Is A true?” may be a narrow test of an established thesis, or it may reveal that category A is inapplicable and thereby lead to a new distinction.
“Why do we pose the question in this way?” may investigate the unknown grounds of the question or select between two ready-made explanations of how it arose.

Therefore, the ten types listed below are not subtypes of one of these two categories. They describe the form or subject matter of questioning; the two modes describe the character of the subject’s relationship to what remains unknown. These bases of classification intersect.

3.4. Transitions Between the Modes

Both modes can arise during a single inquiry.

Transition from discovery to determination:

The subject asks, “What causes this phenomenon?”
Investigation makes it possible to distinguish several mechanisms.
The subject asks, “Which of these mechanisms operates in this case?”

New distinctions have become a specified space within which a particular determination can now be established.

The reverse transition from determination to discovery:

The subject attempts to establish whether A or B is true.
Investigation reveals that neither A nor B explains the subject matter, or that their opposition is untenable.
Instead of a forced choice, the question arises: “Which distinction was not anticipated in the original formulation?”

Such a transition is not equivalent to simply adding “option C” according to a familiar procedure. Sometimes it is necessary to reconsider the very ground on which A and B were distinguished.

3.5. The Unknown, the Undetermined, and the Probable

Three different situations must not be collapsed into one another:

The unknown: content necessary for understanding has not yet been discovered, and the form of the future distinction may itself be a subject of inquiry.
The undetermined within a given space: possible values have already been distinguished, but it has not been established which corresponds to the case.
The probabilistic: a model has additionally been introduced that assigns probabilities to certain outcomes on accepted grounds.

Indeterminacy does not automatically become probability. Nor does the absence of an as-yet-undiscovered answer from a probability model prove that answer’s impossibility.

3.6. Key Distinction

A question aimed at discovering the unknown allows a new distinction to arise and the space of answers to change. A question aimed at determination among given possibilities is directed toward establishing a determination within distinctions already made.

The boundary between them does not lie in any particular interrogative word, but in whether the subject permits a revision of the initial space and what exactly they are seeking to establish.

At the same time, these two modes do not declare that reality is divided into two ready-made kinds of questions. This is a distinction between ways of questioning, not an assertion about an exhaustive structure of reality.

4. Types of Questions by What Needs to Be Established

In this classification, the primary basis of distinction is the character of what is unknown. Types may intersect; a question need not belong to only one class.

Type	Example	What Is Considered Unknown	What the Question Already Organizes
Binary (polar)	“Do you agree?”	Confirmation or negation of a proposition	The “yes/no” answer format
Alternative	“Is the cause A or B?”	Selection from alternatives presented	The list of proposed explanations
Scalar	“How much do you agree, from 1 to 10?”	Position on a scale	The measure, endpoints, and gradations
Parametric	“Who did this?”, “When?”	The value of some parameter	The category of what is sought: person, time, and so on
Causal	“Why did this happen?”	The grounds or causes of a phenomenon	The phenomenon for which an explanation is sought
Mechanistic	“How does this work?”	The means of functioning, sequence, or relationship between elements	Considering the subject matter through a mechanism
Interpretive	“What does this mean to you?”	Meaning or the subject’s relationship to what is happening	The subject matter whose meaning is being asked about
Investigative	“What is happening here?”	The content of a state of affairs not yet established	An area of attention, but not a ready-made explanation
Generative	“What other possibilities exist?”	New distinctions not included in the original set	An orientation toward expanding what has been discovered
Reflective (metaquestion)	“Why do we consider this question correctly formulated in the first place?”	The grounds and limits of questioning itself	The question becomes the subject of inquiry

These are not steps from a bad question to a good question. A binary question may be precise and necessary, while an investigative question may preserve a hidden dogma. For example, “What is happening here?” remains open with respect to its explanation, but it has already distinguished “here” and “what is happening.”

Additional Distinctions Within These Types

Clarifying question: “What exactly do you mean by benefit?” It does not demand a choice of a ready-made position but investigates the meaning of the concept being used.

Quantitative question: “How many cases were recorded?” It establishes a number according to a particular counting rule. The very rule determining what counts as a case may remain a presupposition.

Normative question: “What should be done here?” It investigates the action that ought to be taken and the grounds of obligation; it is not identical to asking what will happen mechanically.

Teleological question: “For what purpose was this done?” It seeks a goal. At the same time, the question may erroneously presume purposiveness where it has not yet been established.

Counterfactual question: “What would have happened under different conditions?” It investigates the relationship between a specified change in conditions and an expected consequence. Posing such a question does not imply that the possibility named was ever actually realized.

Question of possibility: “Could another method exist?” This differs from “What is the probability of another method?”: possibility and probability are not the same thing.

These varieties add other bases for classification. For example, a causal question can simultaneously be binary (“Is A the cause?”), alternative (“A or B?”), or open (“How did this distinction arise?”).

5. Types of Questions by the Form of Their Answer Space

The subject matter of a question alone is insufficient. It is necessary to separately consider the form that the questioner proposes for the answer.

5.1. Closed Set

“Is this A or B?”

Two alternatives are listed before the answer. The respondent may discover C, a combination of A and B, the inapplicability of the division itself, or a lack of grounds for choosing.

If the questioner admits nothing beyond A and B, a restriction introduced by the question becomes a requirement imposed on reality.

5.2. Scale

“How confident are you, from 1 to 10?”

Here the characteristic to be measured, its numerical representation, and the boundaries of the scale are specified in advance. The answer “seven” may be meaningful within this construction, but the number does not prove that the corresponding experience or relationship itself has a numerical nature.

5.3. Open Value Within an Already Known Category

“Who did this?”

The name is unknown, but the type of answer is already specified: some agent. If it has not yet been established that a subject performed the action, or that what is being considered is even an action, the corresponding presupposition requires investigation.

Openness of a value is not openness of a category.

5.4. Open Search for an Explanation

“What led to what is happening?”

The possible explanations have not been listed. But even here it is necessary to investigate what exactly has been recognized as an event, where its boundary has been drawn, and on what grounds a particular type of explanation is required.

5.5. Possibility of Changing the Space Itself

“Which distinctions have we not yet seen?”
“What is it about this formulation that prevents an answer from being discovered?”

Here it is not only an unknown value that remains open; changes to the category, the set of alternatives, and the very construction of the original question are admitted.

The possibility of revising a question differs from the possibility of choosing another answer to it.

6. The Question and the Probabilistic Model

Suppose the question is asked: “Is this A or B?”

It proposes a certain space of answers:

S = {A, B}.

But constructing a set of answers is not yet assigning probabilities. For a probability model, it is additionally necessary to determine which outcomes are being considered, whether they are mutually exclusive, whether the set is regarded as exhaustive, and on what grounds a probability is attributed to each outcome.

One may write P(A) = 0.7 and P(B) = 0.3, but this notation already belongs to an additional model. The question itself has proved neither that A and B exhaust all possibilities nor what their probabilities are.

Three operations must therefore be distinguished:

Posing the question: A and B are distinguished as proposed answers.
Closing the space: a proposition is introduced that all other answers are excluded.
Probability distribution: probabilities are assigned within the accepted space.

The transition from the first operation to the second, and from the second to the third, requires its own grounds.

A question may merely prepare a probabilistic framework, without yet becoming a probabilistic model. Even when probabilities within the selected space have been correctly calculated, this does not prove that the choice of space encompasses the reality being investigated.

A particular problem arises when the subject cannot name an outcome that has not yet been discovered. The absence of such an outcome from the model is not proof of its impossibility.

7. A Question with a Presupposition: When Something Not Yet Established Is Presented as Given

Compare:

“Did you do this?”
“Did you do this for money or recognition?”
“Why did you do this for personal gain?”

In the first case, the fact of the action needs to be established. In the second, a particular pair of explanations has already been introduced. In the third, the assertion about benefit has been moved from the subject of possible investigation into the question’s foundation.

To the question “Why did you do this for personal gain?”, the answer “I was not acting for personal gain” is not a departure from the topic. It addresses the very presupposition that makes the question disputable.

Here one must distinguish:

a question about an established ground: the phenomenon has actually been recorded, and its cause is being investigated;
a question with an unestablished ground: the fact, aim, or causal framework still requires verification;
a question with a substitution of grounds: the questioner does not permit the disputed presupposition to be investigated and demands answers exclusively within it.

The presence of a presupposition does not, by itself, make a question manipulative. The substitution appears with the unjustified assignment of established status to the presupposition and the removal of the possibility of challenging it.

8. Grammatical Form Does Not Determine the Action Performed by a Question

The very same question, “Do you apply your method to yourself?”, can be a genuine investigative address: the interlocutor wants to learn how the method extends to its author’s own assertions.

But in a particular dispute, such a question can perform an entirely different action. Instead of examining the original thesis, it shifts attention to the speaker and obliges them to confirm their right to speak.

At least the following must be distinguished:

clarifying the subject matter: the question helps establish something that is still unclear;
testing a thesis: the questioner investigates arguments and consequences;
testing the speaker instead of the thesis: examination of the content is replaced with an assessment of the subject;
imposing a framework: only answers that fit a construction adopted in advance are recognized;
investigating the grounds of the framework: the questioner admits that their own question may be mistaken.

The function of the question is established not by guessing about hidden intentions, but by how the question arises in the dialogue, what happens to the original subject matter, and which answers are actually recognized.

The right to ask a question does not confer an exclusive right to establish the actuality of its presuppositions.

9. A Closed Answer and a Closed Inquiry Are Not the Same Thing

A question can have a perfectly definite form of answer without usurping reality.

“Did you receive the letter?” in a particular practical situation may permit a meaningful “yes” or “no.” The problem arises not from the mere existence of two alternatives, but when the question does not allow clarification of the conditions, time, meaning of “received,” a partial case, or the discovery of an erroneous presupposition.

Conversely, the grammatically open “Why did you misunderstand everything again?” already contains an evaluation requiring justification.

Consequently, the following must not be identified with one another:

a closed grammatical form;
a limited set of answers offered;
a closed theoretical framework;
a forcibly closed communicative relationship.

These are different distinctions. Confusing them would deprive the typology of its investigative meaning.

10. Answering a Question and Resolving a Question

Answering a question means providing content that satisfies the accepted structure of questioning.

Resolving a question may mean discovering the grounds on which the question itself was posed, and establishing whether that form corresponds to the subject matter of the inquiry.

For example, to the question “Which of the two motives determined your action?”, one can answer “The first.”

But if the action arose from a source represented by neither the first nor the second motive, investigating it requires not a choice but moving beyond the proposed alternative.

Refusing to choose an offered option in such a case can be more substantive than a formally correct answer.

Not every disagreement with how a question is posed is a resolution of that question. This requires showing exactly which presupposition, boundary, or operation in the original formulation is untenable, and what consequently ceases to be established.

11. How to Investigate a Question Without Submitting to Its Form

When encountering a question, one can successively distinguish:

What exactly is being asked here? A value, confirmation, cause, mechanism, meaning, possibility, norm, or the ground of the formulation itself?
What has already been accepted as established? Which facts, categories, relationships, and aims entered the question before the answer?
Where did the space of answers come from? Do its boundaries follow from the subject matter, or have they been proposed by the questioner?
Is this space exhaustive? On what grounds are other alternatives excluded?
Has possibility been substituted with probability? Has a formed list of outcomes been declared the boundary of what can exist at all?
What counts as an admissible answer? Is it possible to acknowledge “neither,” “not established,” “the division is incorrect,” or “the question itself does not apply”?
What happened to the original subject matter of the dialogue? Does the question continue the inquiry, or replace it with an examination of the interlocutor?
Can the question itself be revised? Or is every objection to its grounds classified in advance as misunderstanding or evasion?

This is not a procedure to be mechanically applied to every everyday question. Its subject matter is those situations in which the form of questioning begins to claim the status of the boundaries of reality.

12. The Boundary of the Typology of Questions

Even the most open question already makes a distinction. “What exists?” introduces the category of existence; “What is happening?” introduces the category of events or happenings. Demanding a question entirely without presuppositions would mean demanding questioning without any subject matter distinguished.

But the existence of a distinction is not the same as closing off what has been distinguished.

Nor should the typology claim that all questions are exhausted by the ten types proposed. New kinds of questions may require other bases of classification, while the types already distinguished may turn out to intersect or to be insufficiently differentiated.

The main point is not to compile a final catalog, but to see what work a question performs before an answer appears.

13. Principal Propositions

Questioning has two basic modes: discovering a distinction not yet established and establishing a determination among distinctions already made.
A question is an action by a subject that distinguishes the unknown, not a neutral form for extracting a ready-made answer.
Not knowing the answer does not prove that the space of answers is open.
Proposed alternatives do not become exhaustive simply because they have been named.
Posing alternatives, declaring them exhaustive, and distributing probabilities are different operations.
A question’s presupposition does not become true merely by being grammatically included in the question.
An answer that challenges a question’s grounds may be a substantive response to the situation of questioning.
An open grammatical form does not guarantee an open inquiry; a binary form does not imply manipulation.
Answering within the question and investigating whether it has been properly posed are different actions.
A question can open a new distinction, but it can also prevent the emergence of something for which no category yet exists.
The subject retains the right to investigate not only the answers offered but also the grounds on which those particular answers are expected from them.

14. Questions for Further Inquiry

Is it possible to establish an independent type of question directed not toward content but toward the emergence of the distinction itself?
How does a question that generates new possibilities differ from one that merely enumerates additional, previously unnamed alternatives within the same form?
At what point does a useful working restriction on the space of answers turn into ontological closure?
Can we distinguish questions in which the subject determines the subject matter of their own answer from questions in which that subject matter is determined for them by the questioner?
How does the right not to answer relate to substantively challenging the very form of a question?
How does an investigative question differ from a rhetorical one when both use the same words?
In what sense are the two basic modes an exhaustive distinction between operations of questioning, and where do their own boundaries emerge?