| Explanation | Group of three | % Correct |
|---|---|---|
| Baltic states | Lithuania, {Latvia}, Estonia | 97%
|
| North America without Central America and the Caribbean | United States, {Canada}, Mexico | 96%
|
| Benelux | {Belgium}, Netherlands, Luxembourg | 94%
|
| Iberian Peninsula countries | Spain, {Portugal}, Andorra | 93%
|
| Former French Indochina | Vietnam, Laos, {Cambodia} | 92%
|
| Apennine Peninsula countries | Italy, San Marino, {Vatican City} | 91%
|
| Eastern Slavic countries | Russia, {Belarus}, Ukraine | 88%
|
| Caucasian countries | {Georgia}, Armenia, Azerbaijan | 87%
|
| Southern German-speaking countries | {Austria}, Switzerland, Liechtenstein | 85%
|
| The Guineas of Africa | Guinea, {Guinea-Bissau}, Equatorial Guinea | 85%
|
| South and East of the Arabic Peninsula | Yemen, Oman, {United Arab Emirates} | 85%
|
| Western Slavic countries | {Czech Republic}, Slovakia, Poland | 83%
|
| Former British Raj (after Burma broke away in 1937) | India, Pakistan, {Bangladesh} | 79%
|
| Small island nations of Africa on the Indian Ocean | {Seychelles}, Comoros, Mauritius | 76%
|