| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,355 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,991 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,840 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,824 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,880 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,479 |
| Random African Capital to Country | 0 | - | 4.97 | 101,309 |
| Random African Country to Capital | 0 | - | 4.95 | 71,735 |
| African Capitals by Map | 0 | - | 4.99 | 142,071 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,941 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,969 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,494 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,209 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,195 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,729 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,392 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,068 |
| Countries with Megacities | 0 | - | 4.99 | 266,960 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,786 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,087 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,097 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,203 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,286 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,041 |
| Random European Capital to Country | 0 | - | 4.98 | 192,089 |
| Random European Country to Capital | 0 | - | 4.93 | 165,853 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,969 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,401 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,969 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,406 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,299 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,980 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,629 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,883 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,194 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,592 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,003 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,589 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,912 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,907 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,309 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,420 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,845 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,750 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,225 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,504 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,938 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,599 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,691 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,189 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,366 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,274 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,642 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,942 |
| Name a City - European Countries | 0 | - | 4.90 | 66,133 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,620 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,238 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,231 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,287 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,365 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,018 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,382 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,893 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,315 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,639 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,734 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,871 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,183 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,547 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,615 |
| Largest City by Island | 0 | - | 4.87 | 72,428 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,412 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,665 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,121 |
| Megacities on a World Map | 0 | - | 4.98 | 256,799 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,789 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,749 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,644 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,328 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 65,017 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,627 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,778 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,860 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,503 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,183 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,507 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,847 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,738 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,433 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,018 |
| Europe Capital to Country | 0 | - | 4.99 | 252,005 |
| Asia Capital to Country | 0 | - | 4.96 | 127,359 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,926 |
| European Capitals by Map | 0 | - | 4.99 | 142,011 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,877 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,833 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,148 |
| European Coastal Capitals | 0 | - | 4.95 | 91,277 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,170 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,561 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,709 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,149 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,626 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,898 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,962 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,541 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,970 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,112 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,408 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,569 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,168 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,220 |
| Official Cities in the UK | 0 | - | 4.89 | 286,127 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,850 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,090 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,555 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,069 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,373 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,565 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,923 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,691 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,264 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,452 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,444 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,799 |
| Most Populous Islands | 0 | - | 4.80 | 123,310 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,380 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,646 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,973 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,940 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,474 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,790 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,033 |
| Capitals of the Stans | 0 | - | 4.95 | 27,131 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,780 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,303 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,966 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,697 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,687 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,418 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,896 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,071 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,913 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,778 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,646 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,563 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,543 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,366 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,077 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,349 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,302 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,846 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,761 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,726 |
| Boundary Waters | 0 | - | 4.92 | 88,750 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,405 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,678 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,309 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,941 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,942 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,109 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,327 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,077 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,644 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,148 |
| Biggest City by Region | 0 | - | 4.50 | 36,387 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,329 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,694 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,039 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,000 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,272 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,302 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,438 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,541 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,532 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,426 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,143 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,885 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,566 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,352 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,381 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,805 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,255 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,858,218 |
| Landlocked Countries | 0 | - | 4.99 | 425,511 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 587,572 |
| Every African Country Shape | 0 | - | 4.90 | 88,345 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,938 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,154 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,686 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,507 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,420 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,914 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,375 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,748 |
| Population Trivia | 0 | - | 4.32 | 27,563 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,821 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,000 |
| Biggest Cities in History | 0 | - | 4.52 | 90,572 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,962 |
