| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,363 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,454 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,593 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,319 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,036 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,553 |
| Random African Capital to Country | 0 | - | 4.97 | 100,468 |
| Random African Country to Capital | 0 | - | 4.94 | 71,071 |
| African Capitals by Map | 0 | - | 4.99 | 133,265 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,612 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,836 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,767 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,218 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,632 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,735 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,588 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,886 |
| Countries with Megacities | 0 | - | 4.99 | 256,756 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,754 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,916 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,052 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,917 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,312 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,533 |
| Random European Capital to Country | 0 | - | 4.98 | 190,591 |
| Random European Country to Capital | 0 | - | 4.93 | 164,426 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,173 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,569 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,997 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,681 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,504 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,327 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,640 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,243 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,326 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,298 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,727 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,887 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,420 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,830 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,002 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,823 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,653 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,318 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,162 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,320 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,392 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,631 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,734 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,190 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,323 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,771 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,119 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,442 |
| Name a City - European Countries | 0 | - | 4.90 | 65,156 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,806 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,626 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,329 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,816 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,335 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,788 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,204 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,486 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,171 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,667 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,944 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,127 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,808 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,984 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,926 |
| Largest City by Island | 0 | - | 4.87 | 71,630 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,752 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,613 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,200 |
| Megacities on a World Map | 0 | - | 4.98 | 253,195 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,817 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,180 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,643 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,130 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,426 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,031 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,692 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,068 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,046 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,338 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,139 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,421 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,050 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,367 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,776 |
| Europe Capital to Country | 0 | - | 4.99 | 249,487 |
| Asia Capital to Country | 0 | - | 4.96 | 126,427 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,529 |
| European Capitals by Map | 0 | - | 4.99 | 138,467 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,033 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,849 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,205 |
| European Coastal Capitals | 0 | - | 4.95 | 90,349 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,485 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,035 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,489 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,721 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,746 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,862 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,004 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,641 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,658 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,580 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,866 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,601 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,041 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,555 |
| Official Cities in the UK | 0 | - | 4.89 | 282,928 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,294 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,973 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,866 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,954 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,673 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,059 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,057 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,153 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,620 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,647 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,214 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,745 |
| Most Populous Islands | 0 | - | 4.80 | 122,758 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,271 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,494 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,756 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,812 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,109 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,288 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,324 |
| Capitals of the Stans | 0 | - | 4.95 | 26,719 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,302 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,777 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,374 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,802 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,461 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,869 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,904 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,913 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,436 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,502 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,875 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,020 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,032 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,292 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,406 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,114 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,273 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,850 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,757 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,804 |
| Boundary Waters | 0 | - | 4.92 | 88,361 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,061 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,878 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,120 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,304 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,477 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,060 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,376 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,040 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,909 |
| Biggest City by Region | 0 | - | 4.50 | 36,114 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,046 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,989 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,021 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,081 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,144 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,317 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,153 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,204 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,534 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,427 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,013 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,355 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,686,136 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,188 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,435 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,718 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,307,321 |
| Landlocked Countries | 0 | - | 4.99 | 418,447 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 567,033 |
| Every African Country Shape | 0 | - | 4.90 | 86,970 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,316 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,342 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,134 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,311 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,486 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,481 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,588 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,403 |
| Population Trivia | 0 | - | 4.32 | 27,471 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,015 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,177 |
| Biggest Cities in History | 0 | - | 4.52 | 89,986 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 75,164 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,938 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,583 |
