| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,313 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,268 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,612 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,352 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,399 |
| 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 | 126,834 |
| 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 | 166,391 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,397 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,301 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,193 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,998 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,532 |
| Capitals of the Stans | 0 | - | 4.95 | 26,901 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,438 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,051 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,884 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,895 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,836 |
| Countries with Megacities | 0 | - | 4.99 | 264,439 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,699 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,447 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,957 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,512 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,628 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,690 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,763 |
| Random European Capital to Country | 0 | - | 4.98 | 191,166 |
| Random European Country to Capital | 0 | - | 4.93 | 165,347 |
| Random African Capital to Country | 0 | - | 4.97 | 100,848 |
| Random African Country to Capital | 0 | - | 4.94 | 71,352 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,388 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,035 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,896 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,145 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,118 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,543 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,716 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,931 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,289 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,202 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,240 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,977 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,772 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,672 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,681 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,085 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,736 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,590 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,210 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,123 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,253 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,783 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,859 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,988 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,642 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,672 |
| Name a City - European Countries | 0 | - | 4.90 | 65,572 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,447 |
| 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 | 46,196 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,636 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,959 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,840 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,903 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,290 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,689 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,692 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,115 |
| 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 | 92,967 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,014 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,915 |
| Largest City by Island | 0 | - | 4.87 | 72,035 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,135 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,163 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,729 |
| Megacities on a World Map | 0 | - | 4.98 | 255,230 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,231 |
| 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 | 75,149 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,124 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,626 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,655 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,192 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,477 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,289 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,893 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,327 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,632 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,393 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,914 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,341 |
| Europe Capital to Country | 0 | - | 4.99 | 250,785 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,151 |
| European Capitals by Map | 0 | - | 4.99 | 139,851 |
| African Capitals by Map | 0 | - | 4.99 | 134,108 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,262 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,592 |
| European Coastal Capitals | 0 | - | 4.95 | 90,776 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,705 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,444 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,904 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,153 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,321 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,489 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,123 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,493 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,577 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,667 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,159 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,898 |
| Official Cities in the UK | 0 | - | 4.89 | 284,394 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,314 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,471 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,677 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,183 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,485 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,269 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,382 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,379 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,864 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,014 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,795 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,212 |
| Most Populous Islands | 0 | - | 4.80 | 123,024 |
| 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 | 25,867 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,296 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,511 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,649 |
| 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 | 61,730 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,560 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,985 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,615 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,734 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,646 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,347 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,083 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,147 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,968 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,220 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,940 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,648 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,276 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,828 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,688 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,323 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,270 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,200 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,072 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,502 |
| Top 10 Richest Countries in Asia | 0 | - | 4.74 | 105,818 |
| Boundary Waters | 0 | - | 4.92 | 88,556 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,235 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,250 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,675 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,583 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,824 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,194 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,708 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,559 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,035 |
| Biggest City by Region | 0 | - | 4.50 | 36,273 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,185 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,506 |
| 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 | 82,875 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,004 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,406 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,454 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,453 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,200 |
| Biggest Cities in China | 0 | - | 4.53 | 158,951 |
| Biggest Cities in India | 0 | - | 4.64 | 67,829 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,317 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,749 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,720 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,581 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,501 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,568,826 |
| Landlocked Countries | 0 | - | 4.99 | 421,776 |
| Vietnam War Countries | 0 | - | 4.82 | 94,340 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,778 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,952 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,355 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,399 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,958 |
