Related Clues:

• 'I'm stumped'
• "I'm stumped"
• "I'm stumped!"
• Words said with a shrug
• "Not a clue!"
• "You win"
• "I'm clueless!"
• "No clue"
• "I haven't the foggiest!"
• 'No clue!'
• "I haven't a clue"
• "Haven't the foggiest"
• 'Your guess is as good as mine'
• ''That's tough!''
• ''Good question!''