| Takes | Quiz | Points | Best |
|---|---|---|---|
| 216 | Closest Capitals by Lake Quiz | - | - |
| 522 | Countries Named After Rivers | - | - |
| 303 | Countries of the Biggest Lakes That Border Several Countries | - | - |
| 1,190 | Huge List of U.S. Bodies of Water | - | - |
| 222 | Lake Superlatives Quiz | - | - |
| 437 | Lakes by Country | - | - |
| 326 | Lakes - Multiple Choice | - | - |
| 233 | Lakes on Borders | - | - |
| 76 | Longest Tributaries of the Amazon River | - | - |
| 247 | Random Lakes by Clue | - | - |
| 1,010 | River Delta by Country #1 | - | - |
| 204 | River Delta by Country #2 | - | - |
| 27 | River Delta by Country #3 - Hard Version | - | - |
| 582 | Rivers by Satellite | - | - |
| 33,213 | Rivers in History | 0 | - |
| 311 | Which African Lake? | - | - |
| 96 | Which Asian Lake? | - | - |
| 486 | Which European Lake? | - | - |