| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,712 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,746 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,389 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,058 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,525 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,507 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,882 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,370 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,516 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,189 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,144 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,648 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,218 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,498 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,172 |
| Asia Capital to Country | 0 | - | 4.96 | 126,574 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,226 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,547 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,707 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,186 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,048 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,821 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,965 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,663 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,779 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,255 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,660 |
| Capitals of the Stans | 0 | - | 4.95 | 26,808 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,824 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,046 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,689 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,277 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,367 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,689 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,622 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,210 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,523 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,044 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,483 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,238 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,822 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,981 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,955 |
| Hindu Countries | 0 | - | 4.86 | 50,083 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,816 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,189 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,262 |
| Countries with Megacities | 0 | - | 4.99 | 262,443 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,093 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,117 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,397 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,168 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,022 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,200 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,877 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,999 |
| Biggest Cities in India | 0 | - | 4.63 | 67,710 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,863 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,613 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,955 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,862 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,827 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,640 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,611 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,797 |
| 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 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,013 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,770 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,321 |
| Biggest Cities in History | 0 | - | 4.52 | 90,086 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,984 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,701 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,166 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,445 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,669 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,391 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,658 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,729 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 57,416 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,940 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,084 |
| 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 | 130,130 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,433 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,524 |
| Cities in European History #1 | 0 | - | 4.62 | 133,913 |
| Name a City - European Countries | 0 | - | 4.90 | 65,305 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,641 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,956 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,026 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,153 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,851 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,548 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,341 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,812 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,078 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,241 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,862 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,384 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,252 |
| Largest City by Island | 0 | - | 4.87 | 71,789 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,825 |
| Megacities on a World Map | 0 | - | 4.98 | 254,144 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,294 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,846 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,227 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,271 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,461 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,896 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,232 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,870 |
| Official Cities in the UK | 0 | - | 4.89 | 283,417 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,563 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,984 |
| Former Capitals | 0 | - | 4.88 | 71,420 |
| Europe Capital to Country | 0 | - | 4.99 | 249,862 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,753 |
| European Capitals by Map | 0 | - | 4.99 | 138,914 |
| African Capitals by Map | 0 | - | 4.99 | 133,615 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,995 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,452 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,396 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,966 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,150 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,991 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,335 |
| European Coastal Capitals | 0 | - | 4.95 | 90,504 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,608 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,786 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,792 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,139 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,239 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,218 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,008 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,875 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,027 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,638 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,828 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,836 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,376 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,240 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,364 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,867 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,488 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,141 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,170 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,077 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,370 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,678 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,696 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,436 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,026 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,166 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,898 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,968 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,250 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,607 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,117 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,879 |
| Vietnam War Countries | 0 | - | 4.82 | 94,153 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,785 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,099 |
| Most Populous Islands | 0 | - | 4.80 | 122,869 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,290 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,521 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,103 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,788 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,183 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,023 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,165 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,173 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,885 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,325 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,701 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,620 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,681 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,136 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,014 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,244 |
| Biggest Cities in China | 0 | - | 4.53 | 158,425 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 42,067 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,688,254 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,388 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,906 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,411 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,745 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,359 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,485 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,617 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,711 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,604 |
| Random European Capital to Country | 0 | - | 4.98 | 190,774 |
| Random European Country to Capital | 0 | - | 4.93 | 164,970 |
| Random African Capital to Country | 0 | - | 4.97 | 100,651 |
| Random African Country to Capital | 0 | - | 4.94 | 71,167 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,090 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,107 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,986 |
| Which City in Europe? | 0 | - | 4.83 | 107,332 |
