| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,379 |
| Countries with Megacities | 0 | - | 4.99 | 225,399 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,664 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,842 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,641 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 76,376 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 308,882 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,403,476 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,397 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 83,653 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 260,978 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 118,195 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 109,464 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 90,202 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 161,716 |
| Countries of Europe by Population | 0 | - | 4.98 | 170,933 |
| Most Populous Countries by Year | 0 | - | 4.81 | 105,913 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 120,034 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 93,827 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 123,893 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 103,580 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 109,679 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 86,998 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 217,897 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 132,067 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,851 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,015 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 65,396 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,558 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,264 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 161,568 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 166,014 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 225,778 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 177,928 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 187,928 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 100,942 |
| Countries by Population Decrease | 0 | - | 4.45 | 48,984 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,162 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 155,945 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 62,823 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 21,271 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 170,338 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 71,328 |
| Biggest Cities in the World | 0 | - | 4.91 | 766,646 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 55,595 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 83,088 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 98,117 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,707 |
| Biggest City by Time Zone | 0 | - | 4.86 | 63,517 |
| Biggest City in Every Country | 0 | - | 4.98 | 93,256 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 194,199 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 104,878 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 114,346 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 75,254 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 80,876 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 75,098 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,334 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 66,883 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,734 |
| Countries That Use the Euro | 0 | - | 4.97 | 96,461 |
| Olympic Host Countries | 0 | - | 4.98 | 193,736 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 42,306 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 108,719 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 265,513 |
| The Only European Country ... | 0 | - | 4.92 | 204,857 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 204,189 |
| European Countries NOT in NATO | 0 | - | 4.88 | 54,821 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,774 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 404,695 |
| Biggest Cities in the United States | 0 | - | 4.94 | 935,277 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 357,336 |
| Countries of Africa | 0 | - | 5.00 | 2,426,179 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,022 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,653 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,338 |
| Biggest Cities by Language | 0 | - | 4.95 | 226,760 |
| Largest City by Island | 0 | - | 4.89 | 68,853 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.92 | 68,710 |
| Most Populous World Capitals | 0 | - | 4.93 | 171,871 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,564 |
| Megacities on a World Map | 0 | - | 4.98 | 236,318 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 559,850 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,261 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 71,383 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 103,141 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 163,409 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,294,483 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 209,353 |
| Countries of the Middle East | 0 | - | 4.95 | 193,496 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 85,411 |
| Slavic Countries | 0 | - | 4.96 | 108,652 |
| African Island Countries | 0 | - | 4.96 | 98,275 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 41,343 |
| Countries of North America Quiz | 0 | - | 5.00 | 980,730 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 122,437 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 103,699 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 132,262 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.95 | 138,685 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 211,751 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 188,637 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 150,309 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 111,139 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 141,284 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 147,540 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 113,266 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 157,321 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 96,340 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 104,948 |
| Most Populous Countries in 1950 | 0 | - | 4.61 | 84,596 |
| Boundary Waters | 0 | - | 4.92 | 86,973 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 33,946 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 93,171 |
| Most Populous Islands | 0 | - | 4.78 | 120,063 |
| Islands by Largest City #1 | 0 | - | 4.47 | 93,874 |
| Islands by Largest City #2 | 0 | - | 4.74 | 34,971 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 71,004 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 164,101 |
| Biggest Cities in Asia | 0 | - | 4.94 | 106,050 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,269 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 332,422 |
| Megacities on an Empty Map | 0 | - | 4.96 | 94,770 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 48,351 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 221,215 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 121,913 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 131,525 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 107,888 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 102,691 |
| Monarchies of Europe | 0 | - | 4.89 | 95,015 |
| Monarchies of Asia | 0 | - | 4.97 | 69,329 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 55,264 |
| Asian Country Superlatives | 0 | - | 4.83 | 79,175 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 128,484 |
| Countries that Start with A | 0 | - | 4.98 | 2,101,177 |
| Countries that Start with B | 0 | - | 4.95 | 2,238,625 |
| Countries that Start with C | 0 | - | 4.96 | 1,777,005 |
| Countries that Start with D | 0 | - | 4.96 | 678,425 |
| Countries that Start with E | 0 | - | 4.95 | 1,339,760 |
| Countries that Start with G | 0 | - | 4.97 | 1,463,421 |
| Countries that Start with H | 0 | - | 4.96 | 578,422 |
| Countries that Start with I | 0 | - | 4.92 | 1,257,463 |
| Countries that Start with J | 0 | - | 4.98 | 577,706 |
| Countries that Start with K | 0 | - | 4.97 | 790,796 |
| Countries that Start with L | 0 | - | 4.98 | 1,060,694 |
| Countries that Start with N | 0 | - | 4.93 | 1,087,401 |
| Countries that Start with P | 0 | - | 4.95 | 1,186,746 |
| Countries that Start with S | 0 | - | 4.98 | 1,715,610 |
| Countries that Start with T | 0 | - | 4.89 | 986,998 |
| Countries that Start with U | 0 | - | 4.97 | 885,454 |
| Countries that Start with V | 0 | - | 4.98 | 593,663 |
| Countries that Start with F | 0 | - | 4.83 | 596,152 |
| Countries that Start with M | 0 | - | 4.97 | 1,349,453 |
| The Only African Country ... | 0 | - | 4.98 | 126,465 |
| The Only American Country ... | 0 | - | 4.92 | 117,703 |
| African Countries by a Single Clue | 0 | - | 4.92 | 66,885 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 30,784 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 70,870 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 92,484 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 132,857 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 101,989 |
| European Countries with One Border | 0 | - | 4.97 | 178,156 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 174,615 |
| Countries Closest to Africa | 0 | - | 4.96 | 153,670 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,469,500 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 56,784 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,046 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,574 |
| Biggest City by Region | 0 | - | 4.50 | 35,427 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,260 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,440 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 71,872 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 216,374 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 131,405 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,551 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 51,828 |
| Two Largest Cities by First Two Letters | 0 | - | 4.55 | 81,906 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 110,272 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,791 |
| Most Populous Countries in 1800 | 0 | - | 4.34 | 41,083 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 397,055 |
| UK Immigration by Country | 0 | - | 4.93 | 136,538 |
| Countries with Major League Baseball Players | 0 | - | 4.57 | 65,757 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 92,598 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 54,051 |
| Central American Countries | 0 | - | 4.98 | 150,901 |
| Total United States Immigration by Country | 0 | - | 4.90 | 107,190 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 111,926 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 48,444 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 93,820 |
| African Countries with the Most Christians | 0 | - | 4.93 | 73,302 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.42 | 54,221 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 230,983 |
| Countries that Export the Most Football Players | 0 | - | 4.42 | 54,425 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 193,474 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 117,731 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 110,893 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 88,983 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 98,947 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 56,617 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 83,553 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 77,461 |
