NUBS
| Date | Clue |
|---|---|
| 2026-03-08 | Used-up crayons |
| 2022-03-30 | Pencil remnants |
| 2022-02-13 | Barely usable pencils |
| 2021-01-05 | Small lumps |
| 2017-04-02 | Gists |
| 2010-10-03 | Gists |
| 2009-12-05 | Worn-down pencils, say |
| 2009-10-17 | Lumps |
| 2006-11-02 | Central parts |
| 2003-01-05 | Central points |
| 2002-10-27 | Hearts |
| 2002-07-28 | Gists |
| 2000-01-06 | Gists |
| 1994-07-10 | Gists |