That's a good question.

Meaning

That's a thought-provoking query.

Examples

• John: 'Is it ever okay to lie?'<br>
• Alice: '<b>That's a good question</b>. It depends on the situation.'
• John: '<b>That's a good question</b>. Definitely!'
• Alice: 'Is it wrong to cheat on a test?'<br>