| Most Populous Countries in 1900 | 0 | - | 4.92 | 163,704 |
| Most Populous Countries by Year | 0 | - | 4.81 | 96,015 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 111,075 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,438 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 77,101 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 54,317 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 67,713 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 88,300 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,330,764 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,776 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,360 |
| Countries with Megacities | 0 | - | 4.99 | 202,269 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,727 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,147 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,517 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,107 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,620 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,597 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,661 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,744 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,361 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,456 |
| Most Populous Countries in 1950 | 0 | - | 4.50 | 71,457 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,868 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,450 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,578 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 85,066 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,220 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 73,148 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,422 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,682 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 208,065 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 154,899 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 148,569 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 140,051 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 210,056 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 164,506 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,930 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 92,594 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 91,057 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,757 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 148,161 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.89 | 15,907 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,919 |
| Countries by Population Decrease | 0 | - | 4.43 | 47,060 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 50,502 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.89 | 51,489 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 95,656 |
| Biggest Cities in the World | 0 | - | 4.90 | 704,319 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,249 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 94,336 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 67,955 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 74,959 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,261 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.39 | 79,802 |
| Biggest City by Time Zone | 0 | - | 4.85 | 56,152 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,694 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,719 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,546 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,921 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 67,020 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,572 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 378,978 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 67,109 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 43,053 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 61,020 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 47,046 |
| Biggest Cities in the United States | 0 | - | 4.93 | 850,625 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 339,064 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 224,536 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,538 |
| Olympic Host Countries | 0 | - | 4.98 | 164,597 |
| 10 Easternmost Countries in Europe | 0 | - | 4.88 | 95,700 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 240,482 |
| American Countries on the Pacific Coast | 0 | - | 4.78 | 46,850 |
| The Only European Country ... | 0 | - | 4.93 | 183,649 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 197,170 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 87,415 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 90,909 |
| Countries of Africa | 0 | - | 5.00 | 2,221,088 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 154,722 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 88,810 |
| Biggest Cities in History | 0 | - | 4.50 | 82,005 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,616 |
| Biggest World Cities in 1850 | 0 | - | 4.64 | 65,233 |
| Countries of Asia in 1900 | 0 | - | 4.49 | 54,169 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,746 |
| Demographics Multiple Choice | 0 | - | 4.66 | 40,250 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,328 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,671 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,666 |
| Megacities on a World Map | 0 | - | 4.98 | 223,991 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 524,005 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,999 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,874 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 92,356 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,909 |
| Former Capitals Quiz | 0 | - | 4.82 | 58,718 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,211,410 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 21,236 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 191,055 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 83,168 |
| Countries of the Middle East | 0 | - | 4.95 | 177,501 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 76,618 |
| Slavic Countries | 0 | - | 4.96 | 101,702 |
| African Island Countries | 0 | - | 4.96 | 91,237 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 150,132 |
| Straight Shot to Antarctica | 0 | - | 4.91 | 38,094 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 33,262 |
| Countries with the Most Millionaires | 0 | - | 4.85 | 86,509 |
| Countries with the Most Winter Olympics Medals | 0 | - | 4.46 | 156,753 |
| Countries of North America Quiz | 0 | - | 5.00 | 899,401 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 113,051 |
| Asian Countries Ending in "IA" | 0 | - | 4.95 | 95,417 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 121,897 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 129,023 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 201,204 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 180,382 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 142,810 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 107,968 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 134,402 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 140,340 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 106,752 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 149,674 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 90,350 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 98,344 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,721 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,420 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,545 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,951 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.85 | 210,133 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 100,691 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 103,437 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 123,557 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 102,451 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 86,538 |
| Monarchies of Europe | 0 | - | 4.89 | 88,357 |
| Monarchies of Asia | 0 | - | 4.95 | 54,891 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 51,412 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 285,555 |
| Countries that Catch the Most Fish | 0 | - | 4.88 | 102,895 |
| Countries with the Most Muslims | 0 | - | 4.95 | 147,878 |
| Countries with the Most Exports | 0 | - | 4.96 | 140,840 |
| Top Crude Oil Producing Countries | 0 | - | 4.90 | 174,685 |
| Countries by Oil Consumption | 0 | - | 4.96 | 112,808 |
| Largest Economies in 2050 | 0 | - | 4.89 | 101,609 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 393,431 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 242,547 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 91,754 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.86 | 68,220 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 114,712 |
| Countries that Start with A | 0 | - | 4.98 | 1,979,259 |
| Countries that Start with B | 0 | - | 4.95 | 2,118,346 |
| Countries that Start with C | 0 | - | 4.96 | 1,676,874 |
| Countries that Start with D | 0 | - | 4.96 | 612,513 |
| Countries that Start with E | 0 | - | 4.95 | 1,256,259 |
| Countries that Start with G | 0 | - | 4.97 | 1,376,269 |
| Countries that Start with H | 0 | - | 4.96 | 522,575 |
| Countries that Start with I | 0 | - | 4.92 | 1,183,799 |
| Countries that Start with J | 0 | - | 4.98 | 524,776 |
| Countries that Start with K | 0 | - | 4.96 | 730,979 |
| Countries that Start with L | 0 | - | 4.98 | 991,432 |
| Countries that Start with N | 0 | - | 4.93 | 1,017,753 |
| Countries that Start with P | 0 | - | 4.95 | 1,120,181 |
| Countries that Start with S | 0 | - | 4.98 | 1,630,213 |
| Countries that Start with T | 0 | - | 4.89 | 928,501 |
| Countries that Start with U | 0 | - | 4.97 | 836,463 |
| Countries that Start with V | 0 | - | 4.98 | 560,010 |
| Countries that Start with F | 0 | - | 4.84 | 550,939 |
| Countries that Start with M | 0 | - | 4.97 | 1,275,077 |
| The Only African Country ... | 0 | - | 4.99 | 121,337 |
| The Only American Country ... | 0 | - | 4.94 | 111,727 |
| African Countries by a Single Clue | 0 | - | 4.92 | 64,338 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 67,207 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 85,595 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.81 | 38,590 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 123,565 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 93,644 |
| European Countries with One Border | 0 | - | 4.96 | 152,819 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 146,692 |
| Countries Closest to Africa | 0 | - | 4.95 | 146,802 |
| Most Populous Islands | 0 | - | 4.71 | 114,454 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,568 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 99,459 |
| Countries of the Soviet Union | 0 | - | 4.98 | 186,517 |
| Biggest British Empire Countries | 0 | - | 4.69 | 80,811 |
| Biggest French Empire Countries | 0 | - | 4.46 | 51,828 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 113,872 |
| Countries of Europe After World War II | 0 | - | 4.99 | 173,672 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 141,970 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.94 | 26,618 |
| Countries That Border Russia | 0 | - | 4.98 | 431,657 |
| Countries Bordering France | 0 | - | 4.87 | 361,996 |
| Countries Bordering Germany | 0 | - | 4.99 | 344,815 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,582 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 68,710 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,626 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,895 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 310,458 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,598 |
