| 2026-08-09 | 12 letters? |
| 2025-12-02 | Top of the hour? |
| 2025-04-23 | Noon or midnight |
| 2023-12-30 | Hour at which to sing "Auld Lang Syne" |
| 2023-12-19 | Noon, on some clocks |
| 2021-12-30 | Spot on a sundial |
| 2020-07-25 | Top of a face |
| 2019-08-01 | Common clock topper |
| 2019-07-30 | Midnight, on a grandfather clock |
| 2019-03-29 | Number on a sundial |
| 2019-03-25 | 12 on a grandfather clock |
| 2019-01-06 | Constitutional Amendment about presidential election procedures |
| 2018-02-23 | Top part of a face |
| 2018-01-04 | Last pope named Pius |
| 2016-10-31 | 12, on a grandfather clock |
| 2016-09-18 | The witching hour |
| 2015-09-21 | 12 on a grandfather clock |
| 2015-07-01 | Numeral atop a face |
| 2015-03-19 | The last Pope Pius |
| 2015-02-08 | Topmost part of a face |
| 2012-05-12 | Face-topping figure |
| 2011-10-03 | Numeral at the top of grandfather clocks |
| 2011-04-11 | 12, on a sundial |
| 2010-11-12 | Top of many a timepiece |
| 2009-09-29 | Noon, on a sundial |
| 2009-05-03 | Duodecim |
| 2008-06-18 | Top figure on a clock |
| 2007-03-15 | Top of a clock |
| 2005-12-04 | Top of a clock dial |
| 2002-09-19 | Top of a dial |
| 2001-08-22 | It's atop a face |
| 2001-07-18 | Hour on a clock |
| 2001-06-11 | Midnight, on a grandfather's clock |
| 2000-08-20 | Witching hour |
| 1998-12-10 | It's at the top of a face |
| 1998-08-09 | Sundial letters |
| 1998-05-19 | Top of a clock dial |
| 1996-02-25 | I's predecessor, at times |
| 1995-10-15 | Top-of-the-watch number |