| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,926 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,954 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,806 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,544 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,935 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,150 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,356 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,383 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,037 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,240 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,221 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,565 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,530 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,769 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,164 |
| Asia Capital to Country | 0 | - | 4.96 | 125,706 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,065 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,169 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,847 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,790 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,968 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,242 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,548 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,556 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,138 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,413 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,531 |
| Capitals of the Stans | 0 | - | 4.95 | 26,391 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,553 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,906 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,484 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,232 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,340 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,370 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,243 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,642 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,493 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,481 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,352 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,289 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,981 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,790 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,605 |
| Hindu Countries | 0 | - | 4.85 | 49,539 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,699 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,000 |
| Countries with Megacities | 0 | - | 4.99 | 246,524 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,919 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,799 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,370 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,759 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,483 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,136 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,686 |
| Biggest Cities in India | 0 | - | 4.70 | 67,314 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,925 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,755 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,299 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,592 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,078 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,779 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,828 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,826 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,442 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,542 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,207 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,600 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,590 |
| Biggest Cities in History | 0 | - | 4.52 | 89,093 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,108 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,782 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,802 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,911 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,443 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,483 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,032 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,528 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,023 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,129 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,712 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,639 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,484 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,182 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,272 |
| Cities in European History #1 | 0 | - | 4.63 | 133,065 |
| Name a City - European Countries | 0 | - | 4.92 | 64,341 |
| India State Capitals Quiz | 0 | - | 4.27 | 59,359 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,607 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,707 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,341 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,116 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,114 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,262 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,860 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,359 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,540 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,256 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,365 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,801 |
| Largest City by Island | 0 | - | 4.87 | 71,008 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,499 |
| Megacities on a World Map | 0 | - | 4.98 | 250,824 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,768 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,830 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,878 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,467 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,642 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,272 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,108 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,405 |
| Official Cities in the UK | 0 | - | 4.89 | 280,408 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,314 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,750 |
| Former Capitals | 0 | - | 4.88 | 71,128 |
| Europe Capital to Country | 0 | - | 4.99 | 247,447 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,397 |
| European Capitals by Map | 0 | - | 4.99 | 136,145 |
| African Capitals by Map | 0 | - | 4.99 | 132,112 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,076 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,753 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,631 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,375 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,077 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,143 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,575 |
| European Coastal Capitals | 0 | - | 4.95 | 89,711 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,633 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,684 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,406 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,680 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,741 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,844 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,284 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,071 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,039 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,692 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,649 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,717 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,931 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,082 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,911 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,518 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,098 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,394 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,743 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,154 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,830 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,291 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,703 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,764 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,370 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,027 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,782 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,805 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,782 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,221 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,645 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,731 |
| Vietnam War Countries | 0 | - | 4.83 | 93,582 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,201 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,717 |
| Most Populous Islands | 0 | - | 4.78 | 121,955 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,196 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,399 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,779 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,601 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,836 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,634 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,222 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,422 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,161 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,689 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,729 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,798 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,439 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,497 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,501 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,152 |
| Biggest Cities in China | 0 | - | 4.53 | 156,952 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,322 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,806 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,145 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,275 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,865 |
| Cities in U.S. History #1 | 0 | - | 4.25 | 42,596 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,041 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,404 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,176 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,992 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,246 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,796 |
| Random European Capital to Country | 0 | - | 4.98 | 189,146 |
| Random European Country to Capital | 0 | - | 4.92 | 147,396 |
| Random African Capital to Country | 0 | - | 4.97 | 99,710 |
| Random African Country to Capital | 0 | - | 4.94 | 70,196 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,502 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,871 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,723 |
| Which City in Europe? | 0 | - | 4.83 | 106,595 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,160 |
