| Pattern | First 3 Countries | 4th Country | % Correct |
|---|---|---|---|
| Largest by area | Russia, Canada, China | United States | 100%
|
| Southernmost point | Chile, Argentina, Australia | New Zealand | 69%
|
| Alphabetically | Afghanistan, Albania, Algeria | Andorra | 50%
|
| Largest island country | Indonesia, Madagascar, Papua New Guinea | Japan | 50%
|
| Closest to Malta | Italy, Tunisia, Libya | Algeria | 38%
|
| Largest landlocked countries | Kazakhstan, Mongolia, Chad | Niger | 19%
|
| Highest GDP per square kilometer | Monaco, Singapore, Bahrain | Malta | 13%
|
| Most borders (including overseas departments) | China, Russia, France | Brazil | 9%
|
| Longest name | D. R. Congo, St. Vincent and the Grenadines, F. S. Micronesia | Central African Republic | 9%
|
| Longest coastline | Canada, Russia, United States | Indonesia | 6%
|
| Most official languages | Bolivia, Zimbabwe, South Africa | Ethiopia | 3%
|
| Most recent to join UN | South Sudan, Montenegro, Timor-Leste | Switzerland | 3%
|