ZIPPO
| Date | Clue |
|---|---|
| 2025-11-10 | Diddly-squat |
| 2019-04-07 | Nada |
| 2018-05-13 | Nada |
| 2017-10-06 | Lighter brand |
| 2015-08-26 | Zilch |
| 2014-05-10 | Nil |
| 2011-11-17 | Lighter choice |
| 2011-07-21 | Nada |
| 2010-10-29 | Lighter option |
| 2010-01-29 | Diddly |
| 2009-02-18 | Nada |
| 2009-02-03 | Lighter brand |
| 2007-11-05 | A goose egg |
| 2004-01-19 | Nothin' |