| Clue | Source | Date |
|---|---|---|
| 64, to Nero | USA Today Quick | 31 Aug 2025 |
| Super Bowl 64's Roman numerals | USA Today Quick | 20 Jun 2024 |
| VIII squared | ||
| VIII squared | ||
| Year of the Great Fire of Rome | ||
| VIII squared | ||
| VIII squared | ||
| VIII squared | ||
| Squares on a Roman checkerboard? | ||
| VIII x VIII | ||
| Year in Nero's reign | ||
| Roman 64 |