Related Clues:

• 'Beats me!'
• 'I have no idea!'
• 'It's a mystery'
• Perplexed pronouncement
• Totally unhelpful answer
• 'I have no idea'
• “Darned if I know”
• 'No clue'
• "Beats me!"
• ''I've no idea!''
• 'I haven't a clue'
• ''I have no idea!''
• Words of befuddlement
• 'Hell if I know'
• 'I haven't the foggiest!'