| Länge | Fluss | % Korrekt |
|---|---|---|
| 6.400 km | Amazonas | 99%
|
| 6.500 km | Nil | 99%
|
| 6.051 km | Mississippi | 79%
|
| 4.835 km | Kongo | 52%
|
| 4.692 km | Lena | 44%
|
| 4.692 km | Mekong | 42%
|
| 6.380 km | Jangtsekiang | 41%
|
| 4.845 km | Gelber Fluss | 40%
|
| 5.410 km | Ob | 40%
|
| 5.540 km | Jenissei | 22%
|