What is another word for "question"?

Roget's Thesaurus (1911) lists these synonyms for "question": abandon, abandonment, abjure, about, abrogation, agnostic, agnosticism, alien, all, anagram, antichristian, antichristianity, arcanum, argument, aside, atheism, atheist, atheistic, avast, away, back, belief, bid, book, bout, break, carnal, cast, cave, cease, cessation, cession, charade, chosen, concealed, confidential, conundrum, crack, crux, day.