| Country | River | % Correct |
|---|---|---|
| Brazil | Amazon | 100%
|
| Ethiopia | Blue Nile | 100%
|
| Republic of the Congo | Congo | 100%
|
| Austria | Danube | 100%
|
| Bulgaria | Danube | 100%
|
| Hungary | Danube | 100%
|
| Romania | Danube | 100%
|
| Syria | Euphrates | 100%
|
| Laos | Mekong | 100%
|
| Guinea | Niger | 100%
|
| Niger | Niger | 100%
|
| Nigeria | Niger | 100%
|
| Egypt | Nile | 100%
|
| Germany | Rhine | 100%
|
| Netherlands | Rhine | 100%
|
| Switzerland | Rhine | 100%
|
| Macedonia | Vardar | 100%
|
| Serbia | Danube | 89%
|
| Uganda | Victoria Nile | 89%
|
| Slovakia | Danube | 86%
|
| Iraq | Euphrates | 86%
|
| Israel | Jordan | 86%
|
| Sudan | Nile | 83%
|
| Italy | Po | 83%
|
| France | Rhine | 83%
|
| South Sudan | White Nile | 83%
|
| China | Yangtze | 83%
|
| Vietnam | Mekong | 80%
|
| Mali | Niger | 80%
|
| Liechtenstein | Rhine | 80%
|
| Democratic Republic of Congo | Congo | 75%
|
| Jordan | Jordan | 75%
|
| Mexico | Rio Grande | 75%
|
| Mozambique | Zambezi | 75%
|
| Poland | Vistula | 71%
|
| Belarus | Dnieper | 67%
|
| Spain | Ebro | 67%
|
| United States | Missouri | 67%
|
| South Africa | Orange | 67%
|
| Zimbabwe | Zambezi | 67%
|
| Cambodia | Mekong | 62%
|
| Zambia | Zambezi | 60%
|
| Lesotho | Orange | 57%
|
| Bangladesh | Brahmaputra | 50%
|
| Pakistan | Indus | 50%
|
| Russia | Lena | 50%
|
| Thailand | Mekong | 50%
|
| United Kingdom | Severn | 50%
|
| Canada | Mackenzie | 40%
|
| Australia | Murray | 40%
|
| Gambia | Gambia | 33%
|
| Slovenia | Sava | 33%
|
| Mauritania | Senegal | 33%
|
| Senegal | Senegal | 33%
|
| Portugal | Tagus | 33%
|
| Ghana | Volta | 33%
|
| Argentina | Parana | 29%
|
| Paraguay | Parana | 29%
|
| Bosnia and Herzegovina | Sava | 29%
|
| Central African Republic | Ubangi | 29%
|
| Belize | Belize | 25%
|
| Czech Republic | Vltava | 25%
|
| Ukraine | Dnieper | 20%
|
| Moldova | Dnister | 20%
|
| Botswana | Limpopo | 20%
|
| Croatia | Sava | 20%
|
| Ireland | Shannon | 20%
|
| Kenya | Tana | 20%
|
| Burkina Faso | Black Volta | 18%
|
| Malawi | Shire | 17%
|
| Colombia | Magdalena | 14%
|
| Turkmenistan | Amu Darya | 13%
|
| Uruguay | Uruguay | 13%
|
| Uzbekistan | Amu Darya | 0%
|
| Armenia | Aras | 0%
|
| Cote D'Ivoire | Bandama | 0%
|
| Madagascar | Betsiboka | 0%
|
| India | Brahmaputa | 0%
|
| Liberia | Cavalla | 0%
|
| Chad | Chari | 0%
|
| Nicaragua | Coco | 0%
|
| Suriname | Courantyne | 0%
|
| Latvia | Daugava | 0%
|
| Morocco | Draa | 0%
|
| Albania | Drin | 0%
|
| Guyana | Essequibo | 0%
|
| Namibia | Fish | 0%
|
| Norway | Glomma | 0%
|
| Afghanistan | Helmand | 0%
|
| Myanmar | Irrawaddy | 0%
|
| Kazakhstan | Irtysh | 0%
|
| Iran | Karun | 0%
|
| Angola | Kasai | 0%
|
| Sweden | Klaralven | 0%
|
| El Salvador | Lempa | 0%
|
| Bolivia | Mamore | 0%
|
| Belgium | Meuse | 0%
|
| Lithuania | Neman | 0%
|
| Gabon | Ogooue | 0%
|
| Venezuela | Orinoco | 0%
|
| Mongolia | Orkhon | 0%
|
| Tajikistan | Panj | 0%
|
| Honduras | Patuca | 0%
|
| Ecuador | Putu-mayo | 0%
|
| Malaysia | Rajang | 0%
|
| Turkey | Red | 0%
|
| Sierra Leone | Rokel | 0%
|
| Burundi | Rusizi | 0%
|
| Tanzania | Ruvuma | 0%
|
| Cameroon | Sanaga | 0%
|
| Costa Rica | San Juan | 0%
|
| Papua New Guinea | Sepik | 0%
|
| Somalia | Shebelle | 0%
|
| Peru | Ucayali | 0%
|
| New Zealand | Waikato | 0%
|
| North Korea | Yalu | 0%
|