| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,523 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,746 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 54,085 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 67,433 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 87,847 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 163,101 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,156 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,221 |
| Countries with Megacities | 0 | - | 4.99 | 200,684 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 174,439 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,356 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,534 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,356 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,628 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,323,982 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,389 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,086 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,359 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,134 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,038 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,790 |
| Countries of Europe by Population | 0 | - | 4.98 | 130,223 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,180 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 97,921 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 83,337 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 94,627 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 72,355 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,233 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,979 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 207,046 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 145,284 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 147,598 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,128 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,127 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 208,566 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 163,448 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 159,798 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,068 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,448 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 147,410 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 12,146 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,088 |
| Most Populous Countries in 1800 | 0 | - | 4.34 | 38,843 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,870 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 50,211 |
| Most Populous Countries in 1950 | 0 | - | 4.50 | 71,254 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.89 | 51,247 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 94,916 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,719 |
| Biggest Cities in the World | 0 | - | 4.90 | 698,273 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.39 | 79,404 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,887 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 67,618 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 67,978 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,794 |
| Biggest City by Time Zone | 0 | - | 4.85 | 55,562 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,796 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 173,067 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,634 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,881 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,314 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,878 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 376,428 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,506 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,837 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,538 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,825 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,280 |
| Biggest Cities in the United States | 0 | - | 4.93 | 844,849 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,547 |
| Countries That Use the Euro | 0 | - | 4.93 | 65,321 |
| Olympic Host Countries | 0 | - | 4.98 | 163,736 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 94,651 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 237,982 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,604 |
| The Only European Country ... | 0 | - | 4.93 | 181,968 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 196,637 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 87,108 |
| Countries of Africa | 0 | - | 5.00 | 2,202,953 |
| Biggest Cities in History | 0 | - | 4.50 | 81,518 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,392 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,970 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 223,751 |
| Countries of Asia in 1900 | 0 | - | 4.49 | 53,892 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 90,197 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 154,177 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 88,426 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,473 |
| Demographics Multiple Choice | 0 | - | 4.64 | 40,086 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,856 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,820 |
| Most Populous World Capitals | 0 | - | 4.94 | 160,168 |
| Megacities on a World Map | 0 | - | 4.98 | 223,017 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 520,381 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,594 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,297 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,976 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 152,696 |
| Former Capitals Quiz | 0 | - | 4.81 | 58,402 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,202,454 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 20,784 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 189,436 |
| Countries of the Middle East | 0 | - | 4.96 | 176,155 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 75,992 |
| Slavic Countries | 0 | - | 4.96 | 101,335 |
| African Island Countries | 0 | - | 4.96 | 90,680 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 37,864 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.82 | 32,616 |
| Countries of North America Quiz | 0 | - | 5.00 | 892,618 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 112,337 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 94,848 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 121,100 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 128,125 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 200,135 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 179,529 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 142,248 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 107,685 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 133,700 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 139,780 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 106,107 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 149,061 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 89,890 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 97,825 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 82,728 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 149,413 |
| Most Populous Islands | 0 | - | 4.71 | 113,640 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,491 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,317 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,392 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,187 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,431 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,686 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.87 | 209,027 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.92 | 100,428 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,858 |
| Biggest British Empire Countries | 0 | - | 4.70 | 80,305 |
| Biggest French Empire Countries | 0 | - | 4.46 | 51,665 |
| Asian Countries with the Shortest Names | 0 | - | 4.98 | 122,856 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 101,796 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 86,052 |
| Monarchies of Europe | 0 | - | 4.88 | 87,842 |
| Monarchies of Asia | 0 | - | 4.95 | 54,608 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 51,174 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 113,720 |
| Countries that Start with A | 0 | - | 4.98 | 1,966,799 |
| Countries that Start with B | 0 | - | 4.95 | 2,105,728 |
| Countries that Start with C | 0 | - | 4.96 | 1,666,284 |
| Countries that Start with D | 0 | - | 4.96 | 605,714 |
| Countries that Start with E | 0 | - | 4.95 | 1,247,621 |
| Countries that Start with G | 0 | - | 4.97 | 1,367,571 |
| Countries that Start with H | 0 | - | 4.96 | 516,675 |
| Countries that Start with I | 0 | - | 4.92 | 1,176,168 |
| Countries that Start with J | 0 | - | 4.98 | 519,257 |
| Countries that Start with K | 0 | - | 4.96 | 724,735 |
| Countries that Start with L | 0 | - | 4.98 | 984,398 |
| Countries that Start with N | 0 | - | 4.93 | 1,010,862 |
| Countries that Start with P | 0 | - | 4.95 | 1,113,212 |
| Countries that Start with S | 0 | - | 4.98 | 1,621,033 |
| Countries that Start with T | 0 | - | 4.89 | 921,846 |
| Countries that Start with U | 0 | - | 4.96 | 830,890 |
| Countries that Start with V | 0 | - | 4.98 | 556,564 |
| Countries that Start with F | 0 | - | 4.84 | 546,192 |
| Countries that Start with M | 0 | - | 4.97 | 1,267,576 |
| The Only African Country ... | 0 | - | 4.99 | 120,680 |
| The Only American Country ... | 0 | - | 4.94 | 111,032 |
| African Countries by a Single Clue | 0 | - | 4.92 | 64,057 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.94 | 26,244 |
| African Diaspora - Top 10 Countries | 0 | - | 4.91 | 66,793 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 85,055 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.81 | 38,275 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 122,743 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 92,904 |
| European Countries with One Border | 0 | - | 4.96 | 152,147 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 145,793 |
| Asian Countries with the Fewest Borders | 0 | - | 4.82 | 89,198 |
| Countries Closest to Africa | 0 | - | 4.95 | 146,284 |
| Boundary Waters | 0 | - | 4.93 | 81,655 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,020 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,278 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,402 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 202,326 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,046 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 308,190 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,424 |
| UK Immigration by Country | 0 | - | 4.94 | 126,712 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 99,106 |
| Countries of the Soviet Union | 0 | - | 4.98 | 185,830 |
| Central American Countries | 0 | - | 4.98 | 140,887 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 105,369 |
| Total United States Immigration by Country | 0 | - | 4.89 | 97,760 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 85,727 |
| African Countries with the Most Christians | 0 | - | 4.92 | 68,187 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 187,946 |
| Most Forested European Countries | 0 | - | 4.82 | 69,005 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 181,078 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 110,826 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 103,225 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,521 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 93,059 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.96 | 53,018 |
