Denshi Jisho — Online Japanese dictionary

Found 3 sentences.

もう一杯問う Ask if he wants another drink.
政府住民問う一般投票実施しました The government put the question to the people in a referendum.
引用した問題ではありません、関係代名詞関係副詞使い分け問う問題リーディングセクションにはあります The problem quoted isn't one, but there are problems in the reading section that ask you to distinguish relative pronouns from relative adverbs.