| Country | Northern Border(s) | % Correct |
|---|---|---|
| Nepal | China | 100%
|
| Finland | Norway | 100%
|
| Chile | Peru | 100%
|
| Portugal | Spain | 100%
|
| Mexico | United States | 100%
|
| Bolivia | Brazil | 98%
|
| Latvia | Estonia | 98%
|
| Czech Republic | Germany | Poland | 98%
|
| Yemen | Saudi Arabia | 98%
|
| Kuwait | Iraq | 96%
|
| Jordan | Syria | 96%
|
| Malaysia | Brunei | Thailand | 94%
|
| South Korea | North Korea | 94%
|
| Armenia | Georgia | 92%
|
| Uzbekistan | Kazakhstan | 92%
|
| Moldova | Ukraine | 92%
|
| Burkina Faso | Mali | 91%
|
| Equatorial Guinea | Cameroon | 81%
|
| Sierra Leone | Guinea | 81%
|
| Uganda | South Sudan | 79%
|