| Hint | Answer | % Correct |
|---|---|---|
| Yangtze | Asia | 98%
|
| Congo | Africa | 96%
|
| Amazon | South America | 94%
|
| Nile | Africa | 92%
|
| Indus | Asia | 92%
|
| Volga | Europe | 92%
|
| Mekong | Asia | 90%
|
| Danube | Europe | 90%
|
| Parana | South America | 90%
|
| Darling | Australia | 88%
|
| Orinoco | South America | 88%
|
| Elbe | Europe | 85%
|
| Yukon | North America | 85%
|
| Rio Grande | North America | 77%
|
| Limpopo | Africa | 75%
|
| Murray | Australia | 75%
|
| Po | Europe | 75%
|
| Saint Lawrence | North America | 69%
|
| Orange | Africa | 65%
|
| Lena | Asia | 60%
|