| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,331 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,959 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,830 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,820 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,838 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,385 |
| Random African Capital to Country | 0 | - | 4.97 | 101,298 |
| Random African Country to Capital | 0 | - | 4.95 | 71,723 |
| African Capitals by Map | 0 | - | 4.99 | 142,033 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,922 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,950 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,489 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,196 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,097 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,572 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,363 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,037 |
| Countries with Megacities | 0 | - | 4.99 | 266,902 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,750 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,063 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,069 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,179 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,181 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,034 |
| Random European Capital to Country | 0 | - | 4.98 | 192,078 |
| Random European Country to Capital | 0 | - | 4.93 | 165,842 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,964 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,395 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,962 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,402 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,290 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,964 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,621 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,877 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,182 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,571 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,950 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,573 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,903 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,890 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,284 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,408 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,806 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,736 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,217 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,467 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,927 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,589 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,678 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,182 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,360 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,245 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,480 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,910 |
| Name a City - European Countries | 0 | - | 4.90 | 66,123 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,483 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,220 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,217 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,219 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,359 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,012 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,380 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,889 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,297 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,626 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,725 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,864 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,180 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,533 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,602 |
| Largest City by Island | 0 | - | 4.87 | 72,414 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,403 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,652 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,114 |
| Megacities on a World Map | 0 | - | 4.98 | 256,758 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,742 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,743 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,631 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,286 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 65,010 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,614 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,759 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,850 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,500 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,174 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,500 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,846 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,731 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,424 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,997 |
| Europe Capital to Country | 0 | - | 4.99 | 251,977 |
| Asia Capital to Country | 0 | - | 4.96 | 127,345 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,905 |
| European Capitals by Map | 0 | - | 4.99 | 141,978 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,870 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,817 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,137 |
| European Coastal Capitals | 0 | - | 4.95 | 91,266 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,164 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,530 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,683 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,139 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,611 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,883 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,952 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,529 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,961 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,095 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,405 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,525 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,153 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,213 |
| Official Cities in the UK | 0 | - | 4.89 | 286,069 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,807 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,047 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,542 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,065 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,364 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,557 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,914 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,685 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,260 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,444 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,438 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,788 |
| Most Populous Islands | 0 | - | 4.80 | 123,301 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,379 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,642 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,973 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,939 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,469 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,787 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,018 |
| Capitals of the Stans | 0 | - | 4.95 | 27,119 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,776 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,300 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,959 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,674 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,670 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,399 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,883 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,021 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,882 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,732 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,630 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,541 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,532 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,346 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,062 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,308 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,289 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,832 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,751 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,720 |
| Boundary Waters | 0 | - | 4.92 | 88,747 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,398 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,665 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,290 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,933 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,934 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,108 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,323 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,068 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,644 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,143 |
| Biggest City by Region | 0 | - | 4.50 | 36,387 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,327 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,675 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,031 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,989 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,253 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,437 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,536 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,496 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,417 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,118 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,875 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,563 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,158 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,368 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,802 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,249 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,849,894 |
| Landlocked Countries | 0 | - | 4.99 | 425,342 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 587,255 |
| Every African Country Shape | 0 | - | 4.90 | 88,323 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,847 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,130 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,681 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,491 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,409 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,908 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,372 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,743 |
| Population Trivia | 0 | - | 4.32 | 27,561 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,804 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,963 |
| Biggest Cities in History | 0 | - | 4.52 | 90,562 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,949 |
