| Rank | Category | Countries | % Correct |
|---|---|---|---|
| 4 | Largest country that entirely waspart of the French Empire | Algeria | Chad | Niger | 93%
|
| 3 | Largest country starting with M | Mexico | Mongolia | 93%
|
| 3 | Whose population is projected to increase by the greatest % by the year 2070 [2] | Niger | D.R. Congo | 79%
|
| (3) t | Longest one-straight-line border with another country | Canada | United States | 77%
|
| 6 | Lowest HDI [1] | Somalia | South Sudan | Chad | Central African Republic | Niger | 74%
|
| 4 | Most populous four-letter country | Iran | Iraq | Peru | 70%
|
| 5 | Most recent to gain independence from France | Djibouti | Comoros | Algeria | Mauritania | 67%
|
| 5 (t) | Landlocked country that borders most countries | Austria | Serbia | Zambia | Hungary | 63%
|
| 5 | Highest population of Fula people | Nigeria | Senegal | Guinea | Cameroon | 61%
|
| 4 (t) | Lowest median age [3] | Niger | Uganda | Angola | 60%
|
| 5 | Smallest country under junta military rule | Guinea | Gabon | Burkina Faso | Myanmar | 57%
|
| 6 | Shortest length of the prime meridian runs through it | Togo | United Kingdom | Spain | Burkina Faso | Ghana | 54%
|
| 3 | Most official languages | Bolivia | Zimbabwe | 40%
|
| 2 (t) | Its name appears in most other countries' names (Mali's name appears in Somalia's) | Guinea | 32%
|
| 2 | Highest average annual temperature [4] | Burkina Faso | 20%
|