| 800 |
| Solve |
| Social Experiment | 800 | Solve |
| Soft Drinking | 800 | Solve |
| Soldier and Bananas | 800 | Solve |
| Soroban | 800 | Solve |
| Sorting Parts | 800 | Solve |
| Sorting with Twos | 800 | Solve |
| Souvlaki VS. Kalamaki | 800 | Solve |
| Space Navigation | 800 | Solve |
| Special Characters | 800 | Solve |
| Special Permutation | 800 | Solve |
| Specific Tastes of Andre | 800 | Solve |
| Spell Check | 800 | Solve |
| Splits | 800 | Solve |
| Splitting in Teams | 800 | Solve |
| Splitting into digits | 800 | Solve |
| Spy Detected! | 800 | Solve |
| Spyke Talks | 800 | Solve |
| Square | 800 | Solve |
| Square Counting | 800 | Solve |
| Square String? | 800 | Solve |
| Square Year | 800 | Solve |
| Square of Rectangles | 800 | Solve |
| Square or Not | 800 | Solve |