| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,710 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,713 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,748 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,389 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,526 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,878 |
| Random African Capital to Country | 0 | - | 4.97 | 100,652 |
| Random African Country to Capital | 0 | - | 4.94 | 71,168 |
| African Capitals by Map | 0 | - | 4.99 | 133,617 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,826 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,048 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,896 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,397 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,702 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,544 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,047 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,266 |
| Countries with Megacities | 0 | - | 4.99 | 262,468 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,096 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,120 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,397 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,171 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,842 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,618 |
| Random European Capital to Country | 0 | - | 4.98 | 190,775 |
| Random European Country to Capital | 0 | - | 4.93 | 164,977 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,370 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,693 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,221 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,828 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,644 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,613 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,800 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,340 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,464 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,483 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,247 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,014 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,774 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,329 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,709 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,170 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,451 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,673 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,394 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,031 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,731 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 57,537 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,943 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,093 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,531 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,133 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,224 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,884 |
| Name a City - European Countries | 0 | - | 4.90 | 65,305 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,074 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,711 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,466 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,864 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,513 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,829 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,241 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,548 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,343 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,813 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,080 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,244 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,862 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,397 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,253 |
| Largest City by Island | 0 | - | 4.87 | 71,791 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,883 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,826 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,372 |
| Megacities on a World Map | 0 | - | 4.98 | 254,164 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,668 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,296 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,849 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,462 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,530 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,238 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,873 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,191 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,146 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,656 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,219 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,500 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,172 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,564 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,987 |
| Europe Capital to Country | 0 | - | 4.99 | 249,865 |
| Asia Capital to Country | 0 | - | 4.96 | 126,575 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,755 |
| European Capitals by Map | 0 | - | 4.99 | 138,920 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,243 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,994 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,337 |
| European Coastal Capitals | 0 | - | 4.95 | 90,507 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,547 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,614 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,790 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,793 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,875 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,028 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,154 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,851 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,049 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,823 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,968 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,236 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,273 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,665 |
| Official Cities in the UK | 0 | - | 4.89 | 283,424 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,002 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,453 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,967 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,158 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,781 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,139 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,258 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,240 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,734 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,763 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,407 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,900 |
| Most Populous Islands | 0 | - | 4.80 | 122,870 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,290 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,521 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,790 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,836 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,184 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,364 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,436 |
| Capitals of the Stans | 0 | - | 4.95 | 26,809 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,377 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,869 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,490 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,143 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,662 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,174 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,078 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,375 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,682 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,699 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,026 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,254 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,117 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,513 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,542 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,665 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,514 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,041 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,909 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,926 |
| Boundary Waters | 0 | - | 4.92 | 88,429 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,125 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,009 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,337 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,412 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,608 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,103 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,496 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,070 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,954 |
| Biggest City by Region | 0 | - | 4.50 | 36,177 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,106 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,166 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,173 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,279 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,173 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,341 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,219 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,327 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,702 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,685 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,136 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,395 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,688,278 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,361 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,485 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,997 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,398,127 |
| Landlocked Countries | 0 | - | 4.99 | 419,732 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 570,249 |
| Every African Country Shape | 0 | - | 4.90 | 87,185 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,792 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,624 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,210 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,535 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,660 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,547 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,735 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,474 |
| Population Trivia | 0 | - | 4.32 | 27,486 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,496 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,009 |
| Biggest Cities in History | 0 | - | 4.52 | 90,087 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,001 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,024 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,888 |
