TORUS
| Date | Clue |
|---|---|
| 2023-04-22 | Shape of the heart's electromagnetic field |
| 2021-09-19 | Shape of a doughnut |
| 2017-05-26 | Something ring-shaped |
| 2015-05-09 | Hula hoop, for one |
| 2014-06-24 | Doughnut's shape |
| 2009-10-18 | Life preserver, e.g. |
| 2002-05-02 | Geometrical solid |
| 2001-11-10 | Anchor ring |
| 1998-05-14 | Doughnut's shape |
| 1996-02-06 | Doughnut mathematically |
| 1995-09-23 | Topological solid |
| 1994-09-28 | Doughnut, e.g. |