| Clue | Source | Date |
|---|---|---|
| A piece of cake | New York Times | 22 Apr 2023 |
| "Piece of cake!" | Eugene Sheffer | 11 Jun 2022 |
| "Piece of cake!" | Eugene Sheffer | 12 Oct 2020 |
| No challenge at all | ||
| "Nothing to it!" | LA Times Daily | 08 Dec 2016 |
| "Nothing to it!" | ||
| Buddy Holly "It's ___" |