Related Clues:

• "No idea"
• 'Haven't the foggiest'
• [Shrug]
• "I dunno"
• "I'm stumped!"
• Words said with a shrug
• "Not a clue!"
• 'I dunno'
• "No clue"
• 'No clue!'
• "Haven't the foggiest"
• 'Your guess is as good as mine'
• ''That's tough!''
• "I have no idea"
• 'No idea!'