Historical clue formulations

• Sphere, e.g. — 2026-07-23
• Like a pyramid or sphere — 2025-11-17
• Cone or sphere — 2025-10-21
• Irrefutable — 2025-01-07
• Cube, e.g. — 2023-09-29
• Cube or sphere — 2022-08-22
• Hardly iffy — 2021-05-26
• Sphere or cube — 2020-06-22
• Pyramid, e.g. — 2019-06-20
• Like the 1-to-7 balls — 2017-10-29
• "Can you do me a ___?" — 2017-10-18
• Not liquid or gaseous — 2017-08-28
• Unwavering — 2017-04-20
• Cube or sphere — 2016-01-11
• Dense — 2016-01-07
• Not iffy — 2014-07-19
• Cube or sphere — 2013-09-23
• *Sphere or cube — 2012-12-10
• Sphere or pyramid — 2012-10-23
• Not liquid or gaseous — 2011-10-31
• Sphere or cube — 2011-02-07
• Chock-a-block — 2011-01-09
• Nonliquid state — 2010-09-22
• Not striped, as a billiard ball — 2010-01-18
• Sphere or cube — 2009-08-24
• Not shaky — 2009-08-20
• ___ as a rock — 2009-04-28
• Financially sound — 2007-01-18
• Sphere, say — 2005-10-21
• Assured — 2005-05-15
• Like a rock — 2004-12-29
• 100% — 2004-08-21
• Dependable — 2003-02-21
• Completely reliable — 2000-05-18
• Three-dimensional figure — 1996-10-15
• Frozen — 1996-07-22
• Cubic — 1995-11-05
• Unanimous — 1995-07-08
• Sphere, e.g. — 1994-09-07
• Kind of geometry — 1994-05-08
• Chockablock — 1994-04-09