| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,659 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,729 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,939 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,328 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,300 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,923 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,873 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,256 |
| Asia Capital to Country | 0 | - | 4.96 | 127,175 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,569 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,068 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,716 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,734 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,859 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,327 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,238 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,767 |
| Capitals of the Stans | 0 | - | 4.95 | 27,056 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,291 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,432 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,324 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,742 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,453 |
| Countries with Megacities | 0 | - | 4.99 | 265,893 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,249 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,756 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,504 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,854 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,471 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,021 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,947 |
| Random European Capital to Country | 0 | - | 4.98 | 191,813 |
| Random European Country to Capital | 0 | - | 4.93 | 165,658 |
| Random African Capital to Country | 0 | - | 4.97 | 101,141 |
| Random African Country to Capital | 0 | - | 4.94 | 71,608 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,563 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,270 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,123 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,617 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,441 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,735 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,986 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,389 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,319 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,405 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,677 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,576 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,737 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,172 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,930 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,526 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,059 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,756 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,706 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,445 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,519 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,041 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,168 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,803 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,310 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,453 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,722 |
| Name a City - European Countries | 0 | - | 4.90 | 65,933 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,965 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,109 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,245 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,422 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,861 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,085 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,130 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,965 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,347 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,817 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,036 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,425 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,550 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,689 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,089 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,359 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,383 |
| Largest City by Island | 0 | - | 4.87 | 72,257 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,314 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,477 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,977 |
| Megacities on a World Map | 0 | - | 4.98 | 256,156 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,754 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,649 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,454 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,729 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,394 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,544 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,709 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,397 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,075 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,423 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,737 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,588 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,236 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,775 |
| Europe Capital to Country | 0 | - | 4.99 | 251,534 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,638 |
| European Capitals by Map | 0 | - | 4.99 | 141,363 |
| African Capitals by Map | 0 | - | 4.99 | 141,354 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,625 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,974 |
| European Coastal Capitals | 0 | - | 4.95 | 91,077 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,721 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,264 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,051 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,430 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,656 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,791 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,370 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,811 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,774 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,997 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,380 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,081 |
| Official Cities in the UK | 0 | - | 4.89 | 285,417 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,834 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,431 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,970 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,390 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,814 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,458 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,570 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,979 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,179 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,295 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,212 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,579 |
| Most Populous Islands | 0 | - | 4.80 | 123,184 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,351 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,607 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,932 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,910 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,405 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,680 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,240 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,157 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,892 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,699 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,228 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,886 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,290 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,111 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,692 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,325 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,582 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,308 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,441 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,993 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,226 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,435 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,132 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,709 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,450 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,580 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,528 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,616 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,570 |
| Top 10 Richest Countries in Asia | 0 | - | 4.69 | 106,022 |
| Boundary Waters | 0 | - | 4.92 | 88,674 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,332 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,488 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,063 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,793 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,003 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,279 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,948 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,609 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,100 |
| Biggest City by Region | 0 | - | 4.50 | 36,334 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,256 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,825 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,796 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,273 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,414 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,467 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,970 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,266 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,833 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,731 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,518 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,373 |
| Biggest Cities in China | 0 | - | 4.53 | 159,514 |
| Biggest Cities in India | 0 | - | 4.64 | 67,960 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,695,958 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,863 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,115 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,710 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,966 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,736,518 |
| Landlocked Countries | 0 | - | 4.99 | 423,864 |
| Vietnam War Countries | 0 | - | 4.82 | 94,490 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,946 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,145 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,859 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,641 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,282 |
