| Hint | Answer | % Correct |
|---|---|---|
| N | Nile | 99%
|
| A | Amazon | 98%
|
| Y | Yangtze | 91%
|
| M | Mississippi | 85%
|
| Y | Yellow River | 80%
|
| C | Congo | 64%
|
| O | Ob | 60%
|
| V | Volga | 58%
|
| M | Mekong | 57%
|
| N | Niger | 56%
|
| D | Danube | 51%
|
| Y | Yenisei | 50%
|
| Z | Zambezi | 49%
|
| L | Lena | 46%
|
| A | Amur | 44%
|
| I | Indus | 44%
|
| B | Brahmaputra | 39%
|
| Y | Yukon | 35%
|
| C | Colorado | 30%
|
| M | Mackenzie | 30%
|
| R | Rio Grande | 30%
|
| I | Irrawaddy | 29%
|
| M | Murray | 29%
|
| T | Tigris | 28%
|
| O | Orinoco | 26%
|
| O | Ohio | 23%
|
| D | Dnieper | 22%
|
| O | Orange | 22%
|
| S | St. Lawrence | 22%
|
| R | Rio de la Plata | 20%
|
| C | Columbia | 19%
|
| P | Pearl | 17%
|
| L | Limpopo | 15%
|
| P | Paraguay | 15%
|
| U | Ural | 15%
|
| U | Uruguay | 15%
|
| D | Don | 14%
|
| A | Amu Darya | 13%
|
| A | Arkansas | 13%
|
| V | Volta | 13%
|
| S | Senegal | 11%
|
| S | Syr Darya | 11%
|
| T | Tocantins | 11%
|
| X | Xingu | 11%
|
| M | Madeira | 9%
|
| R | Red (USA) | 9%
|
| S | São Francisco | 9%
|
| S | Salween | 8%
|
| B | Blue Nile | 6%
|
| O | Okavango | 6%
|
| P | Platte | 6%
|
| U | Ubangi | 6%
|
| J | Japurá | 5%
|
| K | Kolyma | 5%
|
| N | Nelson | 5%
|
| G | Godavari | 4%
|
| H | Han | 4%
|
| K | Kama | 4%
|
| K | Kasai | 4%
|
| N | Negro | 4%
|
| P | Pechora | 4%
|
| P | Purús | 4%
|
| S | Shatt al-Arab | 4%
|
| I | Ishim | 3%
|
| J | Jubba | 3%
|
| J | Juruá | 3%
|
| M | Magdalena | 3%
|
| O | Olenyok | 3%
|
| P | Pilcomayo | 3%
|
| A | Alazeya | 2%
|
| A | Aldan | 2%
|
| B | Beni | 2%
|
| B | Brazos | 2%
|
| C | Chulym | 2%
|
| C | Churchill | 2%
|
| C | Colorado (Texas) | 2%
|
| I | Indigirka | 2%
|
| K | Khatanga | 2%
|
| K | Kura | 2%
|
| L | Lower Tunguska | 2%
|
| M | Murrumbidgee | 2%
|
| N | Northern Salado | 2%
|
| O | Oka | 2%
|
| P | Padma | 2%
|
| P | Pecos | 2%
|
| S | Sutlej | 2%
|
| T | Tapajós | 2%
|
| T | Tarim | 2%
|
| T | Tobol | 2%
|
| U | Upper Columbia | 2%
|
| U | Upper Murray | 2%
|
| U | Upper Ob | 2%
|
| U | Upper Yenisey | 2%
|
| V | Vitim | 2%
|
| G | Guaporé | 1%
|
| G | Guaviare | 1%
|
| I | Içá | 1%
|
| S | Songhua | 1%
|
| S | Stony Tunguska | 1%
|
| V | Vilvey | 1%
|