| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,608 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,335 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,409 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,000 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,102 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,935 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,188 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,586 |
| Asia Capital to Country | 0 | - | 4.96 | 126,460 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,067 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,494 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,637 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,868 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,611 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,885 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,685 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,080 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,773 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,488 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,977 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,641 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,949 |
| Countries with Megacities | 0 | - | 4.99 | 258,143 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,822 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,946 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,105 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,955 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,478 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,110 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,541 |
| Random European Capital to Country | 0 | - | 4.98 | 190,616 |
| Random European Country to Capital | 0 | - | 4.93 | 164,541 |
| Random African Capital to Country | 0 | - | 4.97 | 100,477 |
| Random African Country to Capital | 0 | - | 4.94 | 71,083 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,145 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,705 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,536 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,361 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,658 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,250 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,347 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,311 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,775 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,910 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,438 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,870 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,062 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,852 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,727 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,344 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,179 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,423 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,425 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,652 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,754 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,206 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,346 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,815 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,314 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,496 |
| Name a City - European Countries | 0 | - | 4.90 | 65,179 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,742 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,956 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,899 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,936 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,461 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,821 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,356 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,793 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,211 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,493 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,190 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,679 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,961 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,141 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,815 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,005 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,956 |
| Largest City by Island | 0 | - | 4.87 | 71,652 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,771 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,646 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,227 |
| Megacities on a World Map | 0 | - | 4.98 | 253,283 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,916 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,196 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,664 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,171 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,490 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,047 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,709 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,086 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,062 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,395 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,151 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,427 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,064 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,391 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,805 |
| Europe Capital to Country | 0 | - | 4.99 | 249,534 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,561 |
| European Capitals by Map | 0 | - | 4.99 | 138,527 |
| African Capitals by Map | 0 | - | 4.99 | 133,338 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,865 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,224 |
| European Coastal Capitals | 0 | - | 4.95 | 90,366 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,119 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,527 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,738 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,764 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,883 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,023 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,654 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,816 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,710 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,082 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,789 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,565 |
| Official Cities in the UK | 0 | - | 4.89 | 283,024 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,382 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,039 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,233 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,879 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,966 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,070 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,162 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,273 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,633 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,662 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,242 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,766 |
| Most Populous Islands | 0 | - | 4.80 | 122,771 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,274 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,499 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,764 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,815 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,120 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,298 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,149 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,941 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,549 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,311 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,787 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,388 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,853 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,928 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,924 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,000 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,475 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,526 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,891 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,880 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,044 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,045 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,313 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,180 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 130,298 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,871 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,777 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,816 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,364 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 105,506 |
| Boundary Waters | 0 | - | 4.92 | 88,368 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,068 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,891 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,142 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,318 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,493 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,064 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,385 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,041 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,916 |
| Biggest City by Region | 0 | - | 4.50 | 36,118 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,049 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,007 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,044 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,148 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,320 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,161 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,215 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,551 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,454 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,025 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,358 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,913 |
| Biggest Cities in China | 0 | - | 4.52 | 158,204 |
| Biggest Cities in India | 0 | - | 4.63 | 67,651 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,686,353 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,593 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,201 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,439 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,764 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,318,815 |
| Landlocked Countries | 0 | - | 4.99 | 418,693 |
| Vietnam War Countries | 0 | - | 4.83 | 94,062 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,556 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,557 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,409 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,050 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,402 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,337 |
