| Population | Letter | Country | % Correct |
|---|---|---|---|
| 1 281 935 911 | I | India | 98%
|
| 1 401 585 247 | C | China | 95%
|
| 67 364 509 | F | France | 95%
|
| 126 169 308 | J | Japan | 95%
|
| 4 613 672 | O | Oman | 95%
|
| 2 736 569 | Q | Qatar | 95%
|
| 142 123 742 | R | Russia | 95%
|
| 204 453 785 | N | Nigeria | 93%
|
| 326 625 791 | U | United States | 93%
|
| 97 344 560 | V | Vietnam | 93%
|
| 28 667 530 | Y | Yemen | 93%
|
| 16 445 782 | Z | Zambia | 93%
|
| 80 903 089 | G | Germany | 90%
|
| 11 267 097 | H | Haiti | 90%
|
| 44 694 306 | A | Argentina | 88%
|
| 208 846 591 | B | Brazil | 88%
|
| 207 496 572 | P | Pakistan | 86%
|
| 108 387 233 | E | Ethiopia | 83%
|
| 125 895 221 | M | Mexico | 83%
|
| 81 656 905 | T | Turkey | 83%
|
| 48 397 527 | K | Kenya | 76%
|
| 85 678 348 | D | D.R. Congo | 74%
|
| 7 235 171 | L | Laos | 74%
|
| 55 067 992 | S | South Africa | 74%
|