| Clue | Source | Date |
|---|---|---|
| Baffle extremely eager wicketkeeper (7) | ||
| Difficult problem | New York Times | 22 Mar 2020 |
| Hard puzzle | Universal | 08 Dec 2019 |
| Tough one | Premier Sunday | 03 Jul 2016 |
| Toughie | Newsday | 06 Feb 2015 |
| Toughie | ||
| Gordian knot | ||
| Difficult question | ||
| It's not easy | ||
| It's hard to answer | ||
| Quite a puzzle | ||
| Hard-to-answer question | ||
| Baffled | ||
| Difficult question |