| Biggest Countries by Population | 0 | - | 4.99 | 1,372,567 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,622 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 156,506 |
| Countries with Megacities | 0 | - | 4.99 | 215,573 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 185,060 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,359 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 124,170 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,191 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,391 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 81,070 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,926 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,053 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,165 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 87,280 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,399 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,257,328 |
| Countries of Europe by Population | 0 | - | 4.98 | 143,575 |
| Most Populous Countries by Year | 0 | - | 4.81 | 101,540 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 81,353 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 102,770 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 99,820 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 106,700 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 84,090 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 89,201 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 213,447 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 129,367 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 72,096 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 80,005 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 61,683 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 69,991 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 91,801 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 158,738 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 162,564 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 145,379 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 218,275 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 171,428 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 168,550 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 97,840 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 103,993 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 116,345 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 152,664 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 68,425 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 19,160 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 167,725 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 128,264 |
| Countries by Population Decrease | 0 | - | 4.46 | 48,263 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.56 | 61,512 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 53,593 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.81 | 66,217 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 70,520 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 206,415 |
| Name a Valid Asian Country | 0 | - | 4.98 | 113,742 |
| Name a Valid African Country | 0 | - | 4.98 | 132,026 |
| Name a Valid European Country #2 | 0 | - | 4.92 | 90,536 |
| Biggest Cities in the World | 0 | - | 4.91 | 740,014 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 65,493 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 96,609 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 82,186 |
| Countries that Beat Australia | 0 | - | 4.91 | 88,158 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 121,770 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.39 | 81,846 |
| Biggest City by Time Zone | 0 | - | 4.86 | 60,362 |
| Biggest City in Every Country | 0 | - | 4.98 | 88,356 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 185,695 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 100,461 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 108,494 |
| Biggest Cities with Exceptions | 0 | - | 4.89 | 71,930 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 77,884 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 394,047 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 71,631 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 44,938 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 64,413 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 48,613 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 60,971 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 117,446 |
| Biggest Cities in the United States | 0 | - | 4.94 | 899,851 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 349,428 |
| Countries That Use the Euro | 0 | - | 4.92 | 73,968 |
| Olympic Host Countries | 0 | - | 4.98 | 187,979 |
| 10 Easternmost Countries in Europe | 0 | - | 4.88 | 102,813 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 254,826 |
| The Only European Country ... | 0 | - | 4.92 | 195,242 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,067 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 89,145 |
| Countries of Africa | 0 | - | 5.00 | 2,329,759 |
| Countries that Beat the United States | 0 | - | 4.92 | 156,543 |
| Countries that Beat China | 0 | - | 4.85 | 108,713 |
| Countries that Beat Russia | 0 | - | 4.83 | 76,021 |
| Most Populous Countries in 1950 | 0 | - | 4.53 | 72,756 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 69,144 |
| Demographics Multiple Choice | 0 | - | 4.68 | 41,062 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 114,051 |
| Biggest Cities by Language | 0 | - | 4.95 | 222,553 |
| Largest City by Island | 0 | - | 4.90 | 65,076 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 67,207 |
| Most Populous World Capitals | 0 | - | 4.93 | 168,267 |
| Biggest European Cities by Century | 0 | - | 4.98 | 124,522 |
| Megacities on a World Map | 0 | - | 4.98 | 231,129 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 544,677 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 63,538 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 68,661 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 98,381 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 159,102 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 24,607 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 201,156 |
| Countries of the Middle East | 0 | - | 4.95 | 186,105 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 81,459 |
| Slavic Countries | 0 | - | 4.96 | 105,573 |
| African Island Countries | 0 | - | 4.96 | 95,122 |
| Straight Shot to Antarctica | 0 | - | 4.92 | 39,962 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 58,662 |
| Countries of North America Quiz | 0 | - | 5.00 | 943,169 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 118,425 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 100,112 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 127,561 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 133,801 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 207,147 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 184,846 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 147,043 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 109,869 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 137,814 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 144,476 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 110,457 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 153,943 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 93,739 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 102,027 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 160,666 |
| Biggest Cities in Asia | 0 | - | 4.94 | 102,869 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 46,735 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 322,526 |
| Megacities on an Empty Map | 0 | - | 4.95 | 92,401 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 46,289 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 216,708 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 118,941 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 105,535 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 100,654 |
| Monarchies of Europe | 0 | - | 4.89 | 92,432 |
| Monarchies of Asia | 0 | - | 4.96 | 67,690 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 53,576 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 122,608 |
| Countries that Start with A | 0 | - | 4.98 | 2,048,255 |
| Countries that Start with B | 0 | - | 4.95 | 2,186,141 |
| Countries that Start with C | 0 | - | 4.96 | 1,733,779 |
| Countries that Start with D | 0 | - | 4.96 | 649,924 |
| Countries that Start with E | 0 | - | 4.95 | 1,303,531 |
| Countries that Start with G | 0 | - | 4.97 | 1,425,643 |
| Countries that Start with H | 0 | - | 4.96 | 554,213 |
| Countries that Start with I | 0 | - | 4.92 | 1,227,059 |
| Countries that Start with J | 0 | - | 4.98 | 554,834 |
| Countries that Start with K | 0 | - | 4.96 | 764,728 |
| Countries that Start with L | 0 | - | 4.98 | 1,030,264 |
| Countries that Start with N | 0 | - | 4.93 | 1,057,003 |
| Countries that Start with P | 0 | - | 4.95 | 1,157,550 |
| Countries that Start with S | 0 | - | 4.98 | 1,678,191 |
| Countries that Start with T | 0 | - | 4.89 | 963,082 |
| Countries that Start with U | 0 | - | 4.97 | 864,888 |
| Countries that Start with V | 0 | - | 4.98 | 578,361 |
| Countries that Start with F | 0 | - | 4.83 | 576,061 |
| Countries that Start with M | 0 | - | 4.97 | 1,316,498 |
| The Only African Country ... | 0 | - | 4.98 | 124,141 |
| The Only American Country ... | 0 | - | 4.93 | 114,990 |
| African Countries by a Single Clue | 0 | - | 4.91 | 65,708 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 69,268 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 89,188 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 128,850 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.88 | 98,319 |
| European Countries with One Border | 0 | - | 4.97 | 174,049 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 151,841 |
| Countries Closest to Africa | 0 | - | 4.95 | 150,345 |
| Most Populous Islands | 0 | - | 4.77 | 117,551 |
| Islands by Largest City #1 | 0 | - | 4.46 | 92,978 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 159,373 |
| World City Nicknames Quiz | 0 | - | 4.18 | 34,534 |
| Random Flag to Country | 0 | - | 4.99 | 543,584 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 28,968 |
| Countries That Border Russia | 0 | - | 4.98 | 443,209 |
| Countries Bordering France | 0 | - | 4.87 | 372,057 |
| Countries Bordering Germany | 0 | - | 4.99 | 353,977 |
| Largest World Cities With Four Letters | 0 | - | 4.35 | 44,349 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 211,144 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 127,670 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 106,199 |
| Most Populous Countries in 1800 | 0 | - | 4.34 | 40,198 |
| Resort Towns by Country Quiz | 0 | - | 4.29 | 39,375 |
| Name a Valid European Capital | 0 | - | 4.95 | 140,060 |
| UK Immigration by Country | 0 | - | 4.94 | 132,461 |
| Central American Countries | 0 | - | 4.98 | 147,127 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 108,574 |
| Total United States Immigration by Country | 0 | - | 4.88 | 103,418 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 100,660 |
| Countries as U.S. First Names | 0 | - | 4.27 | 73,966 |
| Asian Countries with the Most Christians | 0 | - | 4.87 | 90,921 |
| African Countries with the Most Christians | 0 | - | 4.92 | 71,412 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 200,287 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 188,802 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 115,300 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 107,920 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 86,573 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 96,694 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 55,237 |
