Related Clues:

• "Haven't the foggiest"
• ''Good question!''
• "I have no idea"
• 'Heck if I know'
• ''No idea''
• ''I'm at a loss''
• 'No idea!'
• Pronounced as 'venson'? I haven't a clue!
• ''I've no idea''
• ''I dunno''
• ''Dunno''
• 'No idea whatsoever'
• '???'
• ''I give up''
• "I'm clueless"