Related Clues:

• Situation, so to speak
• Leak on a ship, e.g.
• Algebra assignment
• Confirmation
• Smoking gun, e.g.
• Number on a liquor bottle
• Whisky info
• Mathematical challenge
• Prosecutor's burden
• Math question
• Strength of spirit
• Decisive evidence
• It can nail a case shut
• "Something wrong?"
• 90 is a pretty high one