Question
noun, する verb, の adjective
A quality problem is worth a question. A low quality problem however... don't ask the question. There are stupid questions, after all.
しつもん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
彼はある観客からの予想外の質問にたじろいだ。
He flinched at the unexpected question from an audience member.