Historical clue formulations

• Doozy — 2025-06-07
• Real gem — 2024-03-04
• Doozy — 2023-11-26
• Humdinger — 2019-05-27
• Doozy — 2013-10-13
• Head turner — 2010-03-28
• Doozie — 2006-03-28
• Lollapalooza — 2004-05-24
• Humdinger — 2004-05-23
• Humdinger — 2003-11-13
• Lulu — 2002-02-11