| Landlocked Countries that Border Each Other | 141,039 | 0 | - |
| Countries in World War II | 912,995 | 0 | - |
| Guess the Language | 77,677 | 0 | - |
| Country Shapes Revealing Country Shapes #1 | 90,106 | 0 | - |
| Make a Stained Glass Window | 68,541 | 0 | - |
| Countries by Road Network Shape | 67,019 | 0 | - |
| All Wikipedia Languages | 28,338 | 0 | - |
| Single Vowel Countries | 48,321 | 0 | - |
| Mediterranean Countries Quiz | 212,341 | 0 | - |
| Name a Country A-Z | 243,543 | 0 | - |
| Most Guessed Cities by Country #1 | 102,030 | 0 | - |
| Countries by Borders in 90 Seconds | 3,829,630 | 0 | - |
| Champions League Top 4 | 136,562 | 0 | - |
| Countries with the Most Grassland | 77,384 | 0 | - |
| Countries with Glaciers | 105,439 | 0 | - |
| Countries with the Most Skyscrapers | 144,137 | 0 | - |
| NATO Countries | 280,551 | 0 | - |
| Top Five Countries by Religion | 171,621 | 0 | - |
| Top Five Countries By Category #1 | 450,958 | 0 | - |
| Five Biggest Immigrant Groups by Country #1 | 180,965 | 0 | - |
| Most Populated Countries - Whammies | 62,403 | 0 | - |
| Countries by Former Name | 125,151 | 0 | - |
| Biggest Trading Partners - United States | 106,665 | 0 | - |
| Countries with the Most Elite Universities | 148,577 | 0 | - |
| Countries with J | 185,149 | 0 | - |
| Ten Highest Ranking FIFA Countries by Year | 309,588 | 0 | - |
| Countries with Cardinal Directions in Their Names | 152,660 | 0 | - |
| Countries the UK Declared War On | 122,502 | 0 | - |
| Monarchies of the World | 168,759 | 0 | - |
| U.S. States with the Lowest Population Density | 93,896 | 0 | - |
| Countries in Squares of the World Map | 184,531 | 0 | - |
| Most-Visited Countries by U.S. Presidents | 193,645 | 0 | - |
| Landlocked Countries | 420,738 | 0 | - |
| Ancient City to Country | 108,043 | 0 | - |
| Countries with the Shortest Total Borders | 103,888 | 0 | - |
| Countries with the Greatest Elevation A-Z | 72,908 | 0 | - |
| Five Closest Countries by Country #1 | 245,939 | 0 | - |
| Five Biggest Immigrant Groups by Country #2 | 89,220 | 0 | - |
| Countries with the Most Cathedrals | 46,259 | 0 | - |
| Tallest Countries North to South | 120,458 | 0 | - |
| French-Speaking Countries | 270,559 | 0 | - |
| Answers by Time Period | 55,598 | 0 | - |
| "Second Best" History Edition | 63,035 | 0 | - |
| Megacities - World Map Sudden Death | 151,431 | 0 | - |
| Pin US States on a Borderless Map - Sudden Death | 1,754,680 | 0 | - |
| Most Populous World Capitals | 175,992 | 0 | - |
| Battle to Country | 53,362 | 0 | - |
| Topological Map of Asia Quiz | 20,173 | 0 | - |
| Countries of Europe by Population | 180,880 | 0 | - |
| Pin Africa on a Borderless Map | 478,345 | 0 | - |
| One Country By Letter By Continent | 123,990 | 0 | - |
| Save Humanity by Guessing Countries | 572,933 | 0 | - |
