Historical clue formulations

• Diddly-squat — 2025-11-10
• Nada — 2019-04-07
• Nada — 2018-05-13
• Lighter brand — 2017-10-06
• Zilch — 2015-08-26
• Nil — 2014-05-10
• Lighter choice — 2011-11-17
• Nada — 2011-07-21
• Lighter option — 2010-10-29
• Diddly — 2010-01-29
• Nada — 2009-02-18
• Lighter brand — 2009-02-03
• A goose egg — 2007-11-05
• Nothin' — 2004-01-19