| Length (km) | Answer | % Correct |
|---|---|---|
| 2,670 | Afghanistan | 100%
|
| 2,486 | Angola | 100%
|
| 605 | Bhutan | 100%
|
| 741 | Burundi | 100%
|
| 1,181 | Chad | 100%
|
| 4,084 | China | 100%
|
| 3,371 | Democratic Republic of the Congo | 100%
|
| 2,602 | Indonesia | 100%
|
| 499 | Ireland | 100%
|
| 1,690 | Nepal | 100%
|
| 2,426 | Republic of the Congo | 100%
|
| 506 | Thailand | 100%
|
| 8,893 | United States of America | 100%
|
| 3,066 | Zimbabwe | 100%
|
| 675 | Burkina Faso | 89%
|
| 797 | Central African Republic | 89%
|
| 539 | Equatorial Guinea | 89%
|
| 861 | Ethiopia | 89%
|
| 266 | Guatemala | 89%
|
| 652 | Guinea | 89%
|
| 3,320 | Iran | 89%
|
| 306 | Liberia | 89%
|
| 1,497 | Niger | 89%
|
| 1,417 | Benin | 78%
|
| 1,119 | Brazil | 78%
|
| 668 | Ivory Coast | 78%
|
| 250 | Mexico | 78%
|
| 1,656 | Myanmar | 78%
|
| 740 | Senegal | 78%
|
| 1.2 | Spain | 78%
|
| 682 | Somalia | 67%
|
| 600 | Suriname | 67%
|
| 743 | Venezuela | 56%
|
| 667 | South Sudan | 44%
|
| 1.2 | Denmark (Greenland) | 11%
|