Related Clues:

• "Who knows?"
• "Don't ask me"
• [   ]
• Comment made with a shrug
• ''Beats me!''
• Appropriate comment for this puzzle
• 'I haven't the foggiest'
• "Beats me!"
• 'Ya got me'
• 'No idea'
• 'I haven't a clue'
• 'Who knows?!'
• ''Search me''
• "Beats me," slangily
• 'Ya got me!'