Related Clues:

• "I dunno"
• 'I'm stumped'
• "I'm stumped"
• Comment from the clueless
• Shrugger's comment
• 'I dunno'
• "You win"
• "I'm clueless!"
• "No clue"
• "I haven't the foggiest!"
• "Got me"
• 'You got me there'
• ''Beats me''
• "I haven't a clue"
• "Search me"