| Letter | # | Country | % Correct |
|---|---|---|---|
| O | 4 | Oman | 95%
|
| Q | 5 | Qatar | 95%
|
| Y | 5 | Yemen | 95%
|
| Z | 8 | Zimbabwe | 94%
|
| D | 28 | Democratic Republic of the Congo | 91%
|
| J | 7 | Jamaica | 87%
|
| K | 10 | Kazakhstan/Kyrgyzstan | 87%
|
| A | 17 | Antigua and Barbuda | 86%
|
| F | 27 | Federated States of Micronesia | 85%
|
| H | 8 | Honduras | 84%
|
| U | 18 | United Arab Emirates | 83%
|
| R | 18 | Republic of the Congo | 81%
|
| S | 28 | Saint Vincent and the Grenadines | 79%
|
| T | 17 | Trinidad and Tobago | 78%
|
| V | 11 | Vatican City | 78%
|
| L | 13 | Liechtenstein | 77%
|
| P | 14 | Papua New Guinea | 74%
|
| C | 22 | Central African Republic | 72%
|
| B | 20 | Bosnia and Herzegovina | 70%
|
| M | 15 | Marshall Islands | 69%
|
| E | 16 | Equatorial Guinea | 68%
|
| N | 14 | North Macedonia | 66%
|
| G | 13 | Guinea-Bissau | 62%
|
| I | 10 | Ivory Coast | 57%
|