| Border | Lake | % Correct |
|---|---|---|
| Israel and Jordan | Dead Sea | 88%
|
| Bolivia and Peru | Titicaca | 84%
|
| Michigan and Ontario | Huron | 82%
|
| New York and Ontario | Ontario | 77%
|
| France and Switzerland | Geneva | 76%
|
| Kazakhstan and Uzbekistan | Aral Sea | 66%
|
| Buryatia and Irkutsk | Baikal | 63%
|
| California and Nevada | Tahoe | 59%
|
| D.R. Congo and Uganda | Albert | 45%
|
| Ethiopia and Kenya | Turkana | 31%
|
| D.R. Congo and Rwanda | Kivu | 30%
|
| D.R. Congo and Uganda | Edward | 27%
|
| Estonia and Russia | Peipus | 25%
|
| Alberta and Saskatchewan | Athabasca | 21%
|
| D.R. Congo and Zambia | Mweru | 16%
|
| Argentina and Chile | Buenos Aires | 3%
|