Related Clues:

• Start of a response to a brainteaser
• 'I'm thinking...'
• "I'm thinking..."
• 'Let me think about that...'
• "Things that Make You Go ___"
• "Good question . . ."
• "I'm thinking . . ."
• 'No idea whatsoever'
• "Let me think ... "
• 'Very interesting'
• "Let me see ..."
• ''I give up''
• Thinker's sound
• 'I don't know the answer to this clue!'
• Thoughtful sound