Related Clues:

• 'Don't ask me!'
• '???'
• 'You got me'
• "I'm clueless"
• 'Ya stumped me'
• 'Got no clue!'
• 'Got me'
• Couple penning notes haven't a clue
• Word said with a shrug
• Pass notes for couple to hold
• "Couldn't tell ya"
• Statement accompanying a shrug
• 'Uh, no idea'
• What the puzzled have
• Am clueless, informally