| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,038 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,448 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,233 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,204 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,102 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,889 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,530 |
| Random African Capital to Country | 0 | - | 4.97 | 99,805 |
| Random African Country to Capital | 0 | - | 4.94 | 70,314 |
| African Capitals by Map | 0 | - | 4.99 | 132,388 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,991 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,217 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,208 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,404 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,772 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,709 |
| Countries with Megacities | 0 | - | 4.99 | 247,770 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,560 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,239 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,962 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,185 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,814 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,065 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,772 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,167 |
| Random European Capital to Country | 0 | - | 4.98 | 189,412 |
| Random European Country to Capital | 0 | - | 4.92 | 147,612 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,482 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,561 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,229 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,076 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,338 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,072 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,578 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,859 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,442 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,871 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,973 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,469 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,101 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,770 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,739 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,671 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,251 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,776 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,198 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,292 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,846 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,848 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,724 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,388 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,205 |
| Name a City - European Countries | 0 | - | 4.92 | 64,600 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,063 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,589 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,931 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,349 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,447 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,689 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,123 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,222 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,537 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,105 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,526 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,723 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,368 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,881 |
| Biggest Cities by Language | 0 | - | 4.96 | 241,430 |
| Largest City by Island | 0 | - | 4.87 | 71,165 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,472 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,702 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,500 |
| Megacities on a World Map | 0 | - | 4.98 | 251,432 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,014 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,896 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,998 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,046 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,229 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,887 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,340 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,655 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,448 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,382 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,735 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,653 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,914 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,352 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,506 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,074 |
| Europe Capital to Country | 0 | - | 4.99 | 248,260 |
| Asia Capital to Country | 0 | - | 4.96 | 125,886 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,716 |
| European Capitals by Map | 0 | - | 4.99 | 136,855 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,404 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,364 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,758 |
| European Coastal Capitals | 0 | - | 4.95 | 89,906 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,246 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,424 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,182 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,475 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,275 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,294 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,649 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,088 |
| Most Populous Islands | 0 | - | 4.79 | 122,063 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,217 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,428 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,649 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,738 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,548 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,905 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,242 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,018 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,187 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,693 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,626 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,590 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,981 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,709 |
| Official Cities in the UK | 0 | - | 4.89 | 281,049 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,906 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,883 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,387 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,535 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,301 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,288 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,784 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,624 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,860 |
| Capitals of the Stans | 0 | - | 4.95 | 26,494 |
| Boundary Waters | 0 | - | 4.92 | 88,098 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,866 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,420 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,490 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,938 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,845 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,026 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,588 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,175 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,743 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,772 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,003 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,376 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,376 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,605 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,941 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,530 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,187 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,755 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,773 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,954 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,359 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,463 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,387 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,019 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,932 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,766 |
| Biggest City by Region | 0 | - | 4.50 | 36,024 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,937 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,055 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,247 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,964 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,278 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,002,212 |
| Landlocked Countries | 0 | - | 4.99 | 414,615 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 555,843 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,194 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,836 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,695 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,441 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,558 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,485 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,830 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,957 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,702 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,630 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,417 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,548 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,613 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,252 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,970 |
| Every African Country Shape | 0 | - | 4.90 | 86,290 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,054 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,235 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,642 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,971 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,235 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,113 |
| Population Trivia | 0 | - | 4.32 | 27,432 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,549 |
| Biggest Cities in History | 0 | - | 4.52 | 89,220 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,163 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,709 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,534 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,231 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,963 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,230 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,068 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,658 |
