Historical clue formulations

• Unexpected endings — 2025-12-07
• Dances to a Chubby Checker song, say — 2025-08-06
• Plot surprises — 2024-01-15
• Hairstyle option — 2020-07-13
• Alternatives to olives — 2017-06-16
• Soft-serve ice cream requests — 2015-05-30
• Dances à la Chubby Checker, say — 2012-12-24
• Features of many spy films — 2012-04-04
• New wrinkles — 2007-06-10
• Parts of some plots — 2004-09-05