| Border Country/Countries | Lake/Inland Sea | % Correct |
|---|---|---|
| China | Qinghai Lake / Poyang / | 100%
|
| Burundi, Tanzania, Zambia, DRC | Tanganyika | 94%
|
| Bolivia, Peru | Titicaca | 94%
|
| Kazakhstan, Russia, Turkmenistan, Iran, Azerbaijan | Caspian Sea | 88%
|
| Malawi, Mozambique, Tanzania | Malawi | 88%
|
| Canada, United States | Superior / Huron / Erie / Ontario / Lake of the Woods | 88%
|
| Uganda, Kenya, Tanzania | Victoria | 88%
|
| Russia | Ladoga / Onega / Taymyr / Baikal | 81%
|
| Canada | Great Bear / Great Slave / Winnipeg / Athabasca / Reindeer / Winnipegosis / Nettilling / Nipigon / Manitoba / Dubawnt / Amadjuak / Melville | 75%
|
| Nicaragua | Nicaragua | 63%
|
| United States | Michigan | 56%
|
| Turkey | Van | 44%
|
| Uganda, DRC | Albert | 38%
|
| Kazakhstan | Balkhash | 38%
|
| Ethiopia, Kenya | Turkana | 38%
|
| Zambia, DRC | Mweru | 31%
|
| Estonia, Russia | Peipus | 31%
|
| Ethiopia | Tana | 31%
|
| Iran | Urmia | 31%
|
| Sweden | Vanern | 31%
|
| Antarctica | Vostok | 31%
|
| Zambia | Bangweulu | 25%
|
| Kyrgyzstan | Issyk-Kul | 25%
|
| China, Russia | Khanka | 13%
|
| Finland | Saimaa | 13%
|
| Uzbekistan, Turkmenistan | Sarygamysh | 13%
|
| Mongolia | Uvs | 13%
|