Historical clue formulations

• Goofballs — 2026-05-08
• Screwballs — 2025-09-17
• Screwballs — 2018-07-07
• Nutcases — 2016-02-02
• Wackos — 2014-11-18
• Screwballs — 2010-05-10
• Nuts — 2010-03-07
• Wackos — 2006-05-22
• Loonies — 2006-02-05
• Flakes — 1999-10-01
• Wackos — 1996-02-14