| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,881 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,770 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,791 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,994 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,658 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,298 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,373 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,071 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,964 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,820 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,473 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,135 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,479 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,823 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,684 |
| Asia Capital to Country | 0 | - | 4.96 | 127,306 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,812 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,130 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,190 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,548 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,899 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,017 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,389 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,183 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,331 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,856 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,590 |
| Capitals of the Stans | 0 | - | 4.95 | 27,096 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,860 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,886 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,736 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,179 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,935 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,348 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,993 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,646 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,858 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,158 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,519 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,770 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,681 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,752 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,131 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,323 |
| Hindu Countries | 0 | - | 4.87 | 50,533 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,439 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,789 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,920 |
| Countries with Megacities | 0 | - | 4.99 | 266,652 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,631 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,987 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,931 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,093 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,245 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,844 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,789 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,504 |
| Biggest Cities in India | 0 | - | 4.64 | 68,022 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,936 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,311 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.43 | 33,817 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,501 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,123 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,367 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,252 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,868 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,565 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,841 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,124 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,522 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,839 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,805 |
| Biggest Cities in History | 0 | - | 4.52 | 90,528 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,887 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,135 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,332 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,575 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,671 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,171 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,452 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,866 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,553 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,621 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,137 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,308 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,134 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,665 |
| Cities in European History #1 | 0 | - | 4.63 | 134,527 |
| Name a City - European Countries | 0 | - | 4.90 | 66,066 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,904 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,227 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,273 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,916 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,491 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,873 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,229 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,577 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,683 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,812 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,153 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,480 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,537 |
| Largest City by Island | 0 | - | 4.87 | 72,378 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,599 |
| Megacities on a World Map | 0 | - | 4.98 | 256,600 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,720 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,571 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,281 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,102 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,016 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,459 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,554 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,689 |
| Official Cities in the UK | 0 | - | 4.89 | 285,907 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,360 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,937 |
| Former Capitals | 0 | - | 4.88 | 71,642 |
| Europe Capital to Country | 0 | - | 4.99 | 251,849 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,811 |
| European Capitals by Map | 0 | - | 4.99 | 141,851 |
| African Capitals by Map | 0 | - | 4.99 | 141,885 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,511 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,839 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,133 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,497 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,994 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,756 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,087 |
| European Coastal Capitals | 0 | - | 4.95 | 91,215 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,241 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,551 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,116 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,519 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,651 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,522 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,218 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,553 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,804 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,259 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,994 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,927 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,752 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,370 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,759 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,279 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,946 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,554 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,309 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,832 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,834 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,780 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,479 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,963 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,583 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,262 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,015 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,180 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,454 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,961 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,499 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,721 |
| Vietnam War Countries | 0 | - | 4.82 | 94,549 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,938 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,414 |
| Most Populous Islands | 0 | - | 4.80 | 123,256 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,368 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,631 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,307 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,962 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,448 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,476 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,969 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,921 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,269 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,338 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,372 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,345 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,023 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,835 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,450 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,974 |
| Biggest Cities in China | 0 | - | 4.53 | 159,719 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 42,230 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,697,551 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,482 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,879 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,505 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,345 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,291 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,777 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,002 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,192 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,312 |
| Random European Capital to Country | 0 | - | 4.98 | 192,011 |
| Random European Country to Capital | 0 | - | 4.93 | 165,788 |
| Random African Capital to Country | 0 | - | 4.97 | 101,256 |
| Random African Country to Capital | 0 | - | 4.95 | 71,688 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,567 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,282 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,153 |
