Related Clues:

• Ant. of ans.
• 'No --' ('OK')
• Math. assignment
• Topic for debate: Abbr.
• Answer's opposite: Abbr
• "No __"
• ''No __!'' (''Happy to do it!'')
• 'Jeopardy!' response: Abbr
• ''No __!'' (''Glad to do it'')
• 'No ___' (reassuring words)
• Difficulty, informally
• Hitch as investigation incomplete
• "No ___" ("Piece of cake")
• 'No ___!'('Sure!')
• Little difficulty appears when investigation's incomplete