| River | Population | Country | Answer | % Correct |
|---|---|---|---|---|
| Tigris | 6,719,476 | Iraq | Baghdad | 90%
|
| Saskatchewan | 1,413,800 | Canada | Calgary | 90%
|
| Niger | 1,810,366 | Mali | Bamako | 80%
|
| Tigris | 1,340,827 | Iraq | Basra | 80%
|
| Saskatchewan | 1,087,172 | Canada | Edmonton | 80%
|
| Rio Grande | 677,456 | USA | El Paso | 80%
|
| Amazon | 2,244,470 | Brazil | Manaus | 80%
|
| Rio Grande | 1,501,551 | Mexico | Ciudad Juárez | 70%
|
| Saskatchewan | 288,311 | Canada | Saskatoon | 70%
|
| Rio Grande | 256,187 | USA | Laredo | 60%
|
| Tigris | 1,361,819 | Iraq | Mosul | 60%
|
| Rio Grande | 561,008 | USA | Albuquerque | 50%
|
| Rio Grande | 189,382 | USA | Brownsville | 50%
|
| Niger | 978,029 | Niger | Niamey | 50%
|
| Rio Grande | 416,055 | Mexico | Nuevo Laredo | 50%
|
| Oder | 672,929 | Poland | Wrocław | 50%
|
| Oder | 282,450 | Czech Republic | Ostrava | 40%
|
| Niger | 2,120,000 | Nigeria | Port Harcourt | 40%
|
| Rio Grande | 160,225 | Mexico | Ciudad Acuña | 30%
|
| Rio Grande | 510,739 | Mexico | Matamoros | 30%
|
| Rio Grande | 691,557 | Mexico | Reynosa | 30%
|
| Oder | 396,168 | Poland | Szczecin | 30%
|
| Tigris | 1,087,786 | Turkey | Diyarbakır | 20%
|
| Oder | 56,679 | Germany | Frankfurt (Oder) | 20%
|
| Saskatchewan | 65,949 | Canada | Medicine Hat | 20%
|
| Niger | 1,150,000 | Nigeria | Onitsha | 20%
|
| Rio Grande | 173,959 | Mexico | Piedras Negras | 20%
|
| Saskatchewan | 28,022 | Canada | Fort Saskatchewan | 10%
|
| Oder | 64,261 | Poland | Głogów | 10%
|
| Amazon | 430,700 | Peru | Iquitos | 10%
|
| Amazon | 500,070 | Brazil | Macapá | 10%
|
| Amazon | 79,760 | Brazil | Parintins | 10%
|
| Amazon | 225,870 | Brazil | Santarém | 10%
|
| Niger | 910,000 | Nigeria | Warri | 10%
|
| Oder | 140,002 | Poland | Zielona Góra | 10%
|
| Tigris | 231,476 | Iran | Abadan | 0%
|
| Tigris | 203,155 | Iraq | Abu al-Khaseeb | 0%
|
| Tigris | 527,472 | Iraq | Amarah | 0%
|
| Saskatchewan | 14,530 | Canada | Canmore | 0%
|
| Tigris | 134,041 | Turkey | Cizre | 0%
|
| Saskatchewan | 34,724 | Canada | Cochrane | 0%
|
| Amazon | 450,900 | Peru | Huancayo | 0%
|
| Amazon | 69,680 | Brazil | Itacoatiara | 0%
|
| Niger | 96,173 | Mali | Kalabancoro | 0%
|
| Oder | 56,931 | Poland | Kędzierzyn-Koźle | 0%
|
| Tigris | 389,376 | Iraq | Kut | 0%
|
| Saskatchewan | 104,254 | Canada | Lethbridge | 0%
|
| Amazon | 70,400 | Brazil | Manacapuru | 0%
|
| Niger | 120,786 | Mali | Mopti | 0%
|
| Saskatchewan | 14,292 | Canada | North Battleford | 0%
|
| Oder | 36,843 | Poland | Nowa Sól | 0%
|
| Oder | 127,387 | Poland | Opole | 0%
|
| Saskatchewan | 37,396 | Canada | Prince Albert | 0%
|
| Amazon | 396,400 | Peru | Pucallpa | 0%
|
| Oder | 51,257 | Poland | Racibórz | 0%
|
| Tigris | 144,771 | Iraq | Samarra | 0%
|
| Amazon | 122,160 | Brazil | Santana | 0%
|
| Niger | 133,501 | Mali | Ségou | 0%
|
| Niger | 127,492 | Guinea | Siguiri | 0%
|
| Niger | 365,000 | Nigeria | Yenagoa | 0%
|