Related Clues:

• 'Who woulda thunk ...?'
• 'Hmm, that's odd!'
• Response to bewilderment
• "That made no sense to me"
• 'This really confuses me!'
• 'Whaaa?'
• Request for restatement
• “Well, I didn’t expect that!”
• “Run that by me again”
• 'What???'
• ''How do you figure THAT?''
• 'Ya don't say!'
• Less formal "Beg pardon?"
• "Wait, what?"
• 'Say it again?'