| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 164,968 |
| Countries with Megacities | 0 | - | 4.99 | 224,827 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,255 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,649 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 76,131 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 307,794 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,401,324 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 368,983 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 83,482 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 260,643 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 117,941 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 109,278 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 90,006 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 56,326 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 161,482 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 119,792 |
| Countries of Europe by Population | 0 | - | 4.98 | 170,321 |
| Most Populous Countries by Year | 0 | - | 4.81 | 105,652 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 93,716 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 123,311 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 103,340 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 109,472 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 86,839 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 217,644 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 131,884 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,742 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 81,890 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 65,309 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,464 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,100 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 161,367 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 165,770 |
| Countries by Population Decrease | 0 | - | 4.45 | 48,946 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 62,728 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 21,144 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 225,387 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 177,592 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 187,494 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 100,744 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,030 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 155,733 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 170,195 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 70,971 |
| Biggest Cities in the World | 0 | - | 4.91 | 764,845 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 82,988 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 98,028 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 55,471 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,524 |
| Biggest City by Time Zone | 0 | - | 4.86 | 63,311 |
| Biggest City in Every Country | 0 | - | 4.98 | 92,912 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 193,665 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 104,574 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 113,958 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 75,042 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 80,694 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 74,878 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,262 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 66,730 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,659 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 63,781 |
| Countries That Use the Euro | 0 | - | 4.97 | 94,132 |
| Olympic Host Countries | 0 | - | 4.98 | 193,160 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 108,300 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 264,794 |
| The Only European Country ... | 0 | - | 4.92 | 204,158 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 203,979 |
| European Countries NOT in NATO | 0 | - | 4.88 | 54,428 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,618 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 69,960 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,626 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 404,016 |
| Biggest Cities in the United States | 0 | - | 4.94 | 932,562 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 356,812 |
| Countries of Africa | 0 | - | 5.00 | 2,418,921 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 26,907 |
| Boundary Waters | 0 | - | 4.92 | 86,893 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 33,869 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 93,000 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,184 |
| Biggest Cities by Language | 0 | - | 4.95 | 226,499 |
| Largest City by Island | 0 | - | 4.89 | 68,677 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.92 | 68,614 |
| Most Populous World Capitals | 0 | - | 4.93 | 171,302 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,447 |
| Megacities on a World Map | 0 | - | 4.98 | 235,992 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,137 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 71,218 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 102,711 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 163,147 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 208,781 |
| Countries of the Middle East | 0 | - | 4.95 | 192,956 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 85,110 |
| Slavic Countries | 0 | - | 4.96 | 108,450 |
| African Island Countries | 0 | - | 4.96 | 97,866 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 41,220 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 62,991 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 122,051 |
| Asian Countries Ending in "IA" | 0 | - | 4.95 | 103,348 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 131,675 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.95 | 138,273 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 211,183 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 187,925 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 150,041 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 111,019 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 141,091 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 147,289 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 112,939 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 156,933 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 96,118 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 104,721 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 558,954 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,292,009 |
| Countries of North America Quiz | 0 | - | 5.00 | 977,403 |
| Most Populous Islands | 0 | - | 4.78 | 119,921 |
| Islands by Largest City #1 | 0 | - | 4.47 | 93,851 |
| Islands by Largest City #2 | 0 | - | 4.74 | 34,931 |
| Most Populous Countries in 1950 | 0 | - | 4.61 | 84,521 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 30,570 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 70,779 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 163,917 |
| Biggest Cities in Asia | 0 | - | 4.94 | 105,836 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,172 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 331,820 |
| Megacities on an Empty Map | 0 | - | 4.96 | 94,628 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 48,212 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 220,668 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,341,217 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 395,671 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 121,384 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 131,280 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 107,735 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 102,539 |
| Monarchies of Europe | 0 | - | 4.89 | 94,831 |
| Monarchies of Asia | 0 | - | 4.97 | 69,219 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 55,105 |
| Asian Country Superlatives | 0 | - | 4.83 | 79,059 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 128,006 |
| Countries that Start with A | 0 | - | 4.98 | 2,097,342 |
| Countries that Start with B | 0 | - | 4.95 | 2,234,823 |
| Countries that Start with C | 0 | - | 4.96 | 1,773,741 |
| Countries that Start with D | 0 | - | 4.96 | 676,263 |
| Countries that Start with E | 0 | - | 4.95 | 1,337,128 |
| Countries that Start with G | 0 | - | 4.97 | 1,460,586 |
| Countries that Start with H | 0 | - | 4.96 | 576,557 |
| Countries that Start with I | 0 | - | 4.92 | 1,255,237 |
| Countries that Start with J | 0 | - | 4.98 | 575,946 |
| Countries that Start with K | 0 | - | 4.97 | 788,843 |
| Countries that Start with L | 0 | - | 4.98 | 1,058,425 |
| Countries that Start with N | 0 | - | 4.93 | 1,085,124 |
| Countries that Start with P | 0 | - | 4.95 | 1,184,536 |
| Countries that Start with S | 0 | - | 4.98 | 1,712,864 |
| Countries that Start with T | 0 | - | 4.89 | 985,233 |
| Countries that Start with U | 0 | - | 4.97 | 883,943 |
| Countries that Start with V | 0 | - | 4.98 | 592,205 |
| Countries that Start with F | 0 | - | 4.83 | 594,588 |
| Countries that Start with M | 0 | - | 4.97 | 1,347,117 |
| The Only African Country ... | 0 | - | 4.98 | 126,283 |
| The Only American Country ... | 0 | - | 4.92 | 117,515 |
| African Countries by a Single Clue | 0 | - | 4.92 | 66,792 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 70,712 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 92,281 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 132,575 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.88 | 101,677 |
| European Countries with One Border | 0 | - | 4.97 | 177,875 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 174,374 |
| Countries Closest to Africa | 0 | - | 4.96 | 153,173 |
| World Geography on a Map #1 | 0 | - | 4.94 | 71,884 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 92,451 |
| Population Trivia | 0 | - | 4.30 | 27,185 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 56,279 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,014 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,541 |
| Biggest City by Region | 0 | - | 4.50 | 35,382 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,206 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,362 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 71,791 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 216,018 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 131,217 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,519 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 51,797 |
| Two Largest Cities by First Two Letters | 0 | - | 4.54 | 81,827 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 110,044 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,751 |
| Most Populous Countries in 1800 | 0 | - | 4.34 | 41,025 |
| World Capitals Quiz | 0 | - | 5.00 | 4,897,047 |
| Sahara Desert Countries | 0 | - | 4.98 | 152,051 |
| Himalayan Countries | 0 | - | 4.94 | 127,805 |
| Andean Countries | 0 | - | 4.93 | 71,976 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 59,197 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 117,379 |
| Coffee Producing Countries | 0 | - | 4.84 | 62,575 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 61,625 |
| Danube Countries | 0 | - | 4.97 | 62,381 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 98,985 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 83,382 |
| Countries with the Worst Passports | 0 | - | 4.93 | 77,553 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 142,592 |
| European Landlocked Countries | 0 | - | 4.99 | 143,096 |
| Partially Recognized Countries | 0 | - | 4.98 | 101,079 |
| Countries with the Most Species | 0 | - | 4.99 | 93,621 |