| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,893 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,761 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,701 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,680 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,680 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,814 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,263 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,325 |
| Asia Capital to Country | 0 | - | 4.96 | 125,623 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,957 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,143 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,458 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,837 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,074 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,506 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,073 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,363 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,000 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,447 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,447 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,029 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,855 |
| Countries with Megacities | 0 | - | 4.99 | 246,168 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,776 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,731 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,239 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,665 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,166 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,132 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,947 |
| Random European Capital to Country | 0 | - | 4.98 | 189,048 |
| Random European Country to Capital | 0 | - | 4.92 | 147,332 |
| Random African Capital to Country | 0 | - | 4.97 | 99,671 |
| Random African Country to Capital | 0 | - | 4.94 | 70,149 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,603 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,029 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,720 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,686 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,745 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,396 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,484 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,233 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 171,990 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,143 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,443 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,399 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,481 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,645 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,575 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,316 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,379 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,205 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,397 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,936 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,052 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,629 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,548 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,249 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,962 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,458 |
| Name a City - European Countries | 0 | - | 4.92 | 64,268 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,335 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,772 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,575 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 46,999 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,564 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,033 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,627 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,068 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,085 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,155 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,747 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,282 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,464 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,221 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,195 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,672 |
| Largest City by Island | 0 | - | 4.87 | 70,938 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,212 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,392 |
| Biggest European Cities by Century | 0 | - | 4.98 | 131,542 |
| Megacities on a World Map | 0 | - | 4.98 | 250,207 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,551 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,709 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,739 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,462 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,253 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,982 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,291 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,142 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,179 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,499 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,478 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,712 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,089 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,239 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,642 |
| Europe Capital to Country | 0 | - | 4.99 | 247,274 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,278 |
| European Capitals by Map | 0 | - | 4.99 | 135,915 |
| African Capitals by Map | 0 | - | 4.99 | 132,043 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,068 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,520 |
| European Coastal Capitals | 0 | - | 4.95 | 89,632 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,349 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,514 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,370 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,986 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,954 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,254 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,046 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,705 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,586 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,324 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,209 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,457 |
| Official Cities in the UK | 0 | - | 4.89 | 280,117 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,770 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,480 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,531 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,326 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,004 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,641 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,697 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,529 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,197 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,955 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,203 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,916 |
| Most Populous Islands | 0 | - | 4.78 | 121,905 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,190 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,390 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,585 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,699 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,797 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,853 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,016 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,796 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,179 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,867 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,476 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,034 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,262 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,650 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,081 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,644 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,050 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,575 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,292 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,770 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,676 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,607 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,507 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 239,934 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,152 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,160 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,020 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,445 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,142 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 104,712 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,173 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,126 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,760 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,368 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,747 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,830 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,880 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,644 |
| Biggest City by Region | 0 | - | 4.50 | 35,964 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,863 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,123 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,361 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,200 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,884 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,601 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,614 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,300 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,438 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,230 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,452 |
| Biggest Cities in China | 0 | - | 4.53 | 156,830 |
| Biggest Cities in India | 0 | - | 4.70 | 67,278 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,004 |
| India State Capitals Quiz | 0 | - | 4.27 | 59,344 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,298 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,150 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,632 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,850,141 |
| Landlocked Countries | 0 | - | 4.99 | 412,863 |
| Vietnam War Countries | 0 | - | 4.83 | 93,532 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,195 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,489 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,040 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,125 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,035 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,269 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,705 |
