ECOCAR
| Date | Clue |
|---|---|
| 2022-09-13 | Green machine |
| 2021-09-12 | Green vehicle |
| 2018-09-30 | Nissan Leaf, e.g. |
| 2014-10-04 | Green machine |
| 2013-06-22 | Green traffic sight? |
| 2013-01-12 | Green jam ingredient? |
| 2012-12-08 | Green wheels |
| 2012-06-24 | Green vehicle |
| 2010-08-24 | Prius, e.g. |
| 2008-01-26 | Green vehicle |
| 2006-05-03 | Prius, e.g. |