| 2025-08-24 | Like a "wet" signature |
| 2025-05-08 | How to sign a check |
| 2023-12-03 | How legal papers may be signed |
| 2023-06-21 | How signatures are typically written |
| 2020-02-09 | Indelibly, say |
| 2019-07-25 | Unerasable, say |
| 2018-07-27 | Permanently, say |
| 2018-01-02 | How some solve crosswords |
| 2017-05-17 | How confident solvers may solve |
| 2016-07-13 | How the confident may solve |
| 2014-12-22 | How many forms are filled out |
| 2014-09-04 | Improper way to take the SAT |
| 2010-04-25 | How some people solve crosswords |
| 2008-04-28 | Permanently, as writing |
| 2007-06-10 | Permanently |
| 2007-04-24 | How the confident solve |
| 2006-10-09 | Done permanently, as writing |
| 2006-08-05 | Hard to change |