KEENEST
| Date | Clue |
|---|---|
| 2016-08-24 | Most perceptive |
| 2007-06-12 | Most acute |
| 2007-02-01 | Most sharp |
| 2002-12-22 | Most acute |
| 2002-11-28 | Most eager |
| 2002-05-05 | Most intense |
| 2000-03-26 | Least dull |
| 1999-08-22 | Most clever |
| 1997-07-25 | Most gung-ho |
| 1996-05-28 | Most acute |
| 1994-11-17 | Most enthusiastic |