A question is an utterance which serves as a request for information. Questions are sometimes distinguished from interrogatives, which are the grammatical forms, typically used to express them. Rhetor
The question mark? is a punctuation mark that indicates a question or interrogative clause or phrase in many languages.
Question
…as in: Different languages may use different mechanisms to distinguish polar ("yes-no") questions from declarative statements (in addition to the question mark). English is one of a small number of languages which use word order. Another example is French: Cross-linguistically, the most common method of marking…
An 11th century punctus interrogativus; in the third line, before "tamen". (Burgerbibliothek Bern, Cod. 162, f. 15r.)