| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,496 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,613 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,342 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,128 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,417 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,008 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,956 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,211 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,594 |
| Asia Capital to Country | 0 | - | 4.96 | 126,469 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,068 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,498 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,942 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,624 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,888 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,491 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,688 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,083 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,645 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,874 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,814 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,493 |
| China Cities Map Quiz | 0 | - | 4.94 | 104,921 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,041 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,659 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,970 |
| Countries with Megacities | 0 | - | 4.99 | 258,570 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,841 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,960 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,124 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,966 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,533 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,122 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,545 |
| Random European Capital to Country | 0 | - | 4.98 | 190,621 |
| Random European Country to Capital | 0 | - | 4.93 | 164,562 |
| Random African Capital to Country | 0 | - | 4.97 | 100,479 |
| Random African Country to Capital | 0 | - | 4.94 | 71,087 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,145 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,320 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,790 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,958 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,901 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,099 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,716 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,538 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,376 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,662 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,254 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,354 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,914 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,443 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,884 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,082 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,859 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,750 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,348 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,186 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,455 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,432 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,659 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,759 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,210 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,356 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,825 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,379 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,512 |
| Biggest Cities in China | 0 | - | 4.52 | 158,212 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,462 |
| Name a City - European Countries | 0 | - | 4.90 | 65,187 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,814 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,066 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,824 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,371 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,494 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,197 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,687 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,964 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,146 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,817 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,008 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,970 |
| Largest City by Island | 0 | - | 4.87 | 71,657 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,775 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,651 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,234 |
| Megacities on a World Map | 0 | - | 4.98 | 253,313 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,955 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,201 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,672 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,187 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,060 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,713 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,089 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,069 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,405 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,153 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,430 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,071 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,398 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,813 |
| Europe Capital to Country | 0 | - | 4.99 | 249,549 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,570 |
| European Capitals by Map | 0 | - | 4.99 | 138,546 |
| African Capitals by Map | 0 | - | 4.99 | 133,356 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,869 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,226 |
| European Coastal Capitals | 0 | - | 4.95 | 90,372 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,141 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,541 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,739 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,772 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,887 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,798 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,212 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,723 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,403 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,816 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,027 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,658 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,302 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,876 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,091 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,797 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,576 |
| Official Cities in the UK | 0 | - | 4.89 | 283,042 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,062 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,235 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,884 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,975 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,149 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,071 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,942 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,550 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,162 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,288 |
| Most Populous Islands | 0 | - | 4.80 | 122,776 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,274 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,501 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,766 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,124 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,314 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,787 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,391 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,869 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,951 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,928 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,012 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,488 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,535 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,898 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,880 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,056 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,047 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,316 |
| Vietnam War Countries | 0 | - | 4.83 | 94,076 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,200 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 130,607 |
| Japan Country Quiz | 0 | - | 4.93 | 142,208 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 93,403 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,609 |
| Boundary Waters | 0 | - | 4.92 | 88,370 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,073 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,894 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,149 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,322 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,498 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,065 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,388 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,042 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,918 |
| Biggest City by Region | 0 | - | 4.50 | 36,118 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,050 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,954 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,017 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,051 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,625 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,149 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,321 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,161 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,224 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,563 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,504 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,467 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,031 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,358 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,914 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,957 |
| Biggest Cities in India | 0 | - | 4.63 | 67,654 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,686,456 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,758 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,662 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,596 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,202 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,442 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,642 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,471 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,016 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,072 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,781 |
