PITH
| Date | Clue |
|---|---|
| 2026-08-24 | White part of an orange |
| 2026-05-14 | Essence |
| 2026-02-24 | Oft-discarded part of an orange |
| 2024-10-10 | Essence |
| 2022-12-26 | Bitter part of an orange |
| 2021-06-26 | Crux |
| 2021-03-27 | Crux of the matter |
| 2019-12-16 | The white stuff in an orange |
| 2019-11-25 | Bitter part of an orange |
| 2019-06-25 | Essential part |
| 2018-06-02 | Heart |
| 2018-01-11 | Crux |
| 2016-08-27 | Essential element |
| 2016-04-30 | Substance |
| 2015-01-12 | Soft plant tissue |
| 2014-12-01 | Essence |
| 2014-08-21 | Core |
| 2014-03-25 | Heart of the matter |
| 2013-10-02 | Heart of the matter |
| 2013-02-17 | Heart |
| 2012-03-20 | Heart of the matter |
| 2010-01-17 | Essence |
| 2008-04-21 | Central part |
| 2005-10-29 | Core |
| 2005-10-16 | Tropical helmet material |
| 2004-06-23 | Nitty-gritty |
| 2003-07-12 | Heart or soul |
| 2003-05-06 | Central part |
| 2002-05-02 | Kind of helmet |
| 2002-01-16 | Marrow |
| 2001-12-21 | Core |
| 2001-01-05 | Meat |
| 1998-05-25 | Essence |
| 1997-07-27 | Heart of the matter |
| 1997-03-03 | ___ helmet (safari wear) |
| 1996-09-04 | Essence |
| 1995-09-10 | Core |
| 1994-07-21 | Material for a topi |