～問
～もん · ～mon · JLPT N2 · noun
question
❓ 問 = gate 門 + mouth 口: a mouth at the gate asks questions
問 is a mouth (口) inside a gate (門), like someone calling a question through the door. As a counter, 一問 is one question and 三問 is three, so it is often used for quiz or exam items.