Related Clues:

• "I give up!"
• ''I have no idea!''
• ''How should I know?''
• 'Hell if I know'
• ''Too technical!''
• Unhelpful answer
• “Ya got me”
• 'I haven't the foggiest!'
• 'How should I know?'
• ''Got me!''
• ''I'm stumped!''
• "No idea"
• 'Haven't the foggiest'
• "Search me!"
• 'Good question'