| # | Country | Smallest Neighbor | % Correct |
|---|---|---|---|
| 2 | Canada | United States | 98%
|
| 3 | China | Bhutan | 93%
|
| 7 | India | Bhutan | 93%
|
| 18 | Mongolia | China | 90%
|
| 9 | Kazakhstan | Kyrgyzstan | 90%
|
| 10 | Algeria | Tunisia | 90%
|
| 16 | Libya | Tunisia | 90%
|
| 8 | Argentina | Uruguay | 90%
|
| 1 | Russia | Estonia | 88%
|
| 4 | United States | Mexico | 88%
|
| 5 | Brazil | Suriname | 88%
|
| 19 | Peru | Ecuador | 83%
|
| 12 | Saudi Arabia | Qatar | 83%
|
| 13 | Mexico | Belize | 80%
|
| 17 | Iran | Armenia | 78%
|
| 14 | Indonesia | East Timor | 78%
|
| 15 | Sudan | Eritrea | 73%
|
| 24 | South Africa | Eswatini | 73%
|
| 22 | Angola | Republic of the Congo | 68%
|
| 11 | D.R. Congo | Rwanda | 66%
|
| 21 | Niger | Benin | 59%
|
| 20 | Chad | Cameroon | 54%
|
| 23 | Mali | Senegal | 44%
|