Related Clues:

• "I'm clueless"
• 'I don't know the answer to this clue!'
• 'Got me'
• "You Really ___"
• 'Hell if I know!'
• The Kinks "You Really ___"
• 'I'm stumped!'
• ''I'm stumped''
• Kinks "You Really ___"
• "Darned if I know"
• 'Darned if I know'
• 'Couldn't tell ya!'
• ''I'm flummoxed''
• "I haven't the foggiest"
• Empty-headed remark?