| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,316 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,277 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,620 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,357 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,422 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,574 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,920 |
| Asia Capital to Country | 0 | - | 4.96 | 126,836 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,603 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,656 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,394 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,400 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,305 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,194 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,998 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,533 |
| Capitals of the Stans | 0 | - | 4.95 | 26,902 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,456 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,053 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,924 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,902 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,838 |
| Countries with Megacities | 0 | - | 4.99 | 264,452 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,704 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,449 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,960 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,513 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,649 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,691 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,764 |
| Random European Capital to Country | 0 | - | 4.98 | 191,168 |
| Random European Country to Capital | 0 | - | 4.93 | 165,349 |
| Random African Capital to Country | 0 | - | 4.97 | 100,849 |
| Random African Country to Capital | 0 | - | 4.94 | 71,352 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,389 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,037 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,898 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,147 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,121 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,543 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,717 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,937 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,294 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,205 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,241 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,977 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,774 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,673 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,691 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,088 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,738 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,600 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,212 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,125 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,253 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,787 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,863 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,992 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,674 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,677 |
| Name a City - European Countries | 0 | - | 4.90 | 65,574 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,467 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,038 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,066 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,198 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,638 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,959 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,843 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,903 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,291 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,690 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,692 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,119 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,310 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,469 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,968 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,017 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,916 |
| Largest City by Island | 0 | - | 4.87 | 72,036 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,139 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,164 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,732 |
| Megacities on a World Map | 0 | - | 4.98 | 255,236 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,240 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,483 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,151 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,131 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,628 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,656 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,196 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,480 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,289 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,894 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,328 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,633 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,393 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,915 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,345 |
| Europe Capital to Country | 0 | - | 4.99 | 250,787 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,153 |
| European Capitals by Map | 0 | - | 4.99 | 139,854 |
| African Capitals by Map | 0 | - | 4.99 | 134,108 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,266 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,594 |
| European Coastal Capitals | 0 | - | 4.95 | 90,776 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,722 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,448 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,904 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,158 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,322 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,490 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,123 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,497 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,596 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,670 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,160 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,901 |
| Official Cities in the UK | 0 | - | 4.89 | 284,403 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,332 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,482 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,677 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,184 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,487 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,270 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,385 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,381 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,864 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,016 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,796 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,214 |
| Most Populous Islands | 0 | - | 4.80 | 123,028 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,323 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,561 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,868 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,868 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,299 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,511 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,650 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,202 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 16,025 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,733 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,561 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,988 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,616 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,740 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,651 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,347 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,093 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,152 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,971 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,221 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,940 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,651 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,278 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,829 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,703 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,332 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,271 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,203 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,074 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,503 |
| Top 10 Richest Countries in Asia | 0 | - | 4.74 | 105,823 |
| Boundary Waters | 0 | - | 4.92 | 88,557 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,236 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,252 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,679 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,584 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,829 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,195 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,710 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,560 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,037 |
| Biggest City by Region | 0 | - | 4.50 | 36,274 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,185 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,510 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,504 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,222 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,376 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,349 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,891 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,008 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,409 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,456 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,453 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,201 |
| Biggest Cities in China | 0 | - | 4.53 | 158,954 |
| Biggest Cities in India | 0 | - | 4.64 | 67,829 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,343 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,749 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,721 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,581 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,501 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,570,216 |
| Landlocked Countries | 0 | - | 4.99 | 421,792 |
| Vietnam War Countries | 0 | - | 4.82 | 94,341 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,780 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,954 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,359 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,402 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,960 |
