| Takes | Quiz | Points | Best |
|---|---|---|---|
| 211 | Closest Capitals by Lake Quiz | - | - |
| 511 | Countries Named After Rivers | - | - |
| 297 | Countries of the Biggest Lakes That Border Several Countries | - | - |
| 1,181 | Huge List of U.S. Bodies of Water | - | - |
| 217 | Lake Superlatives Quiz | - | - |
| 425 | Lakes by Country | - | - |
| 319 | Lakes - Multiple Choice | - | - |
| 224 | Lakes on Borders | - | - |
| 73 | Longest Tributaries of the Amazon River | - | - |
| 243 | Random Lakes by Clue | - | - |
| 659 | River Delta by Country | - | - |
| 168 | River Delta by Country #2 | - | - |
| 565 | Rivers by Satellite | - | - |
| 32,889 | Rivers in History | 0 | - |
| 300 | Which African Lake? | - | - |
| 93 | Which Asian Lake? | - | - |
| 476 | Which European Lake? | - | - |