| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,903 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,766 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,730 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,697 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,728 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,919 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,282 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,332 |
| Asia Capital to Country | 0 | - | 4.96 | 125,633 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,981 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,147 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,483 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,848 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,109 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,512 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,085 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,371 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,124 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,461 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,667 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,164 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,887 |
| Countries with Megacities | 0 | - | 4.99 | 246,251 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,806 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,746 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,268 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,683 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,332 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,148 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,955 |
| Random European Capital to Country | 0 | - | 4.98 | 189,073 |
| Random European Country to Capital | 0 | - | 4.92 | 147,339 |
| Random African Capital to Country | 0 | - | 4.97 | 99,677 |
| Random African Country to Capital | 0 | - | 4.94 | 70,157 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,609 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,038 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,735 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,721 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,764 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,409 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,495 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,263 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,060 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,160 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,491 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,444 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,551 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,701 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,652 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,349 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,408 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,255 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,425 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,952 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,068 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,646 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,580 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,314 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,212 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,507 |
| Name a City - European Countries | 0 | - | 4.92 | 64,277 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,459 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,776 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,579 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,008 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,567 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,069 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,631 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,070 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,179 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,770 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,303 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,478 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,231 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,235 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,703 |
| Largest City by Island | 0 | - | 4.87 | 70,953 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,256 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,407 |
| Biggest European Cities by Century | 0 | - | 4.98 | 136,344 |
| Megacities on a World Map | 0 | - | 4.98 | 250,409 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,671 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,723 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,761 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,502 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,260 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,019 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,316 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,171 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,186 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,513 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,490 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,726 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,113 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,250 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,660 |
| Europe Capital to Country | 0 | - | 4.99 | 247,307 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,309 |
| European Capitals by Map | 0 | - | 4.99 | 135,975 |
| African Capitals by Map | 0 | - | 4.99 | 132,063 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,079 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,529 |
| European Coastal Capitals | 0 | - | 4.95 | 89,659 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,425 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,549 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,382 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,008 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,971 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,274 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,063 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,784 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,661 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,346 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,222 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,476 |
| Official Cities in the UK | 0 | - | 4.89 | 280,186 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,858 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,539 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,549 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,340 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,022 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,649 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,706 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,567 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,205 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,968 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,230 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,932 |
| Most Populous Islands | 0 | - | 4.78 | 121,914 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,191 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,392 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,588 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,702 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,804 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,861 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,021 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,798 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,183 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,874 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,489 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,043 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,296 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,668 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,093 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,681 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,090 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,587 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,305 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,777 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,702 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,611 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,538 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,010 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,160 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,175 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,037 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,453 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,147 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 104,728 |
| Boundary Waters | 0 | - | 4.92 | 87,994 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,186 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,143 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,771 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,372 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,759 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,846 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,881 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,648 |
| Biggest City by Region | 0 | - | 4.50 | 35,972 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,873 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,138 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,370 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,996 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,204 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,888 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,612 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,631 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,320 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,452 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,234 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,468 |
| Biggest Cities in China | 0 | - | 4.53 | 156,847 |
| Biggest Cities in India | 0 | - | 4.70 | 67,285 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,190 |
| India State Capitals Quiz | 0 | - | 4.27 | 59,347 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,324 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,153 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,646 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,858,776 |
| Landlocked Countries | 0 | - | 4.99 | 412,945 |
| Vietnam War Countries | 0 | - | 4.83 | 93,537 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,204 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,497 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,049 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,131 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,052 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,304 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,730 |
