To answer or respond to a question (verb); to provide a reply to a question, orally or in writing.
会議の終わりに彼女が代表して質問に答えた。
At the end of the meeting she answered the questions on behalf of the group.
子どもの難しい質問に答えるのは時に大変だ。
Sometimes it's difficult to answer children's difficult questions.
質問に答える前に、まず状況をよく確認してください。
Before answering the question, first check the situation carefully.