| Letters | Countries | % Correct |
|---|---|---|
| -stan | Afghanistan | Kazakhstan | Kyrgyzstan | Pakistan | Tajikistan | Turkmenistan | Uzbekistan | 100%
|
| -land | Finland | Iceland | Ireland | New Zealand | Poland | Switzerland | Poland | 97%
|
| -bia | Colombia | Gambia | Namibia | Saudi Arabia | Serbia | Zambia | 93%
|
| -ria | Algeria | Austria | Bulgaria | Liberia | Nigeria | Syria | 89%
|
| -os | Barbados | Comoros | Laos | 85%
|
| -r | East Timor | Ecuador | El Salvador | Madagascar | Myanmar | Niger | Qatar | 78%
|
| -ea | Equatorial Guinea | Eritrea | Guinea | North Korea | Papua New Guinea | South Korea | 77%
|
| -ay | Norway | Paraguay | Uruguay | 74%
|
| -on | Cameroon | Gabon | Lebanon | 68%
|
| -al | Nepal | Senegal | Portugal | 68%
|
| -in | Bahrain | Benin | Liechtenstein | Spain | 65%
|
| -ar | Madagascar | Myanmar | Qatar | 63%
|
| -ana | Botswana | Ghana | Guyana | 58%
|
| -as | Bahamas | Honduras | 44%
|
| -ic | Central African Republic | Czech Republic | Dominican Republic | 37%
|