| Trio | Members of Trio | Missing Member | % Correct |
|---|---|---|---|
| Largest North American Countries | United States, Mexico | Canada | 99%
|
| Baltic Nations | Latvia, Lithuania | Estonia | 91%
|
| Italy and the Countries it Surrounds | Italy, Vatican City | San Marino | 90%
|
| Nations Bordering North Korea | South Korea, China | Russia | 88%
|
| European Countries With Nukes | Russia, United Kingdom | France | 86%
|
| Low Countries | Netherlands, Belgium | Luxembourg | 85%
|
| Countries Stealing Ethiopia's Coastline | Somalia, Eritrea | Djibouti | 80%
|
| Caucasus Countries | Georgia, Armenia | Azerbaijan | 78%
|
| Countries on Borneo | Indonesia, Malaysia | Brunei | 72%
|
| Newest Countries | South Sudan (2011), Kosovo (2008) | Serbia or Montenegro (2006) | 43%
|