| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,232 |
| Countries with Megacities | 0 | - | 4.99 | 225,230 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,531 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,785 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,533 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 76,306 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 308,539 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,402,797 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,279 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 83,590 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 260,843 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 118,107 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 109,429 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 90,145 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 161,653 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 119,953 |
| Countries of Europe by Population | 0 | - | 4.98 | 170,734 |
| Most Populous Countries by Year | 0 | - | 4.81 | 105,827 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 93,790 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 123,754 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 103,510 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 109,620 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 86,944 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 217,804 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 132,016 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,820 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 81,980 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 65,368 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,525 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,221 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 161,512 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 165,947 |
| Countries by Population Decrease | 0 | - | 4.45 | 48,970 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 62,793 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 21,228 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 225,655 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 177,799 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 187,799 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 100,880 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,109 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 155,883 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 170,296 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 71,231 |
| Biggest Cities in the World | 0 | - | 4.91 | 766,062 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 83,053 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 98,096 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 55,556 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,643 |
| Biggest City by Time Zone | 0 | - | 4.86 | 63,452 |
| Biggest City in Every Country | 0 | - | 4.98 | 93,158 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 194,020 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 104,797 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 114,210 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 75,184 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 80,827 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 75,029 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,309 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 66,841 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,712 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 63,934 |
| Countries That Use the Euro | 0 | - | 4.97 | 96,044 |
| Olympic Host Countries | 0 | - | 4.98 | 193,597 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 40,663 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 108,577 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 265,259 |
| The Only European Country ... | 0 | - | 4.92 | 204,617 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 204,117 |
| European Countries NOT in NATO | 0 | - | 4.88 | 54,703 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,743 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,004 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,645 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 404,485 |
| Biggest Cities in the United States | 0 | - | 4.94 | 934,396 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 357,163 |
| Countries of Africa | 0 | - | 5.00 | 2,423,613 |
| Boundary Waters | 0 | - | 4.92 | 86,941 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 33,923 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 93,117 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,297 |
| Biggest Cities by Language | 0 | - | 4.95 | 226,667 |
| Largest City by Island | 0 | - | 4.89 | 68,805 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.92 | 68,684 |
| Most Populous World Capitals | 0 | - | 4.93 | 171,806 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,525 |
| Megacities on a World Map | 0 | - | 4.98 | 236,208 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,227 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 71,338 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 102,960 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 163,316 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 209,178 |
| Countries of the Middle East | 0 | - | 4.95 | 193,250 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 85,314 |
| Slavic Countries | 0 | - | 4.96 | 108,589 |
| African Island Countries | 0 | - | 4.96 | 98,179 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 41,306 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 63,224 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 122,268 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 103,535 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 132,116 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.95 | 138,580 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 211,618 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 188,541 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 150,179 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 111,103 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 141,229 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 147,465 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 113,187 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 157,233 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 96,257 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 104,850 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 559,532 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,293,641 |
| Countries of North America Quiz | 0 | - | 5.00 | 979,623 |
| Most Populous Islands | 0 | - | 4.78 | 120,029 |
| Islands by Largest City #1 | 0 | - | 4.47 | 93,868 |
| Islands by Largest City #2 | 0 | - | 4.74 | 34,944 |
| Most Populous Countries in 1950 | 0 | - | 4.61 | 84,572 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 30,738 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 70,905 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 164,040 |
| Biggest Cities in Asia | 0 | - | 4.94 | 105,992 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,239 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 332,228 |
| Megacities on an Empty Map | 0 | - | 4.96 | 94,724 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 48,307 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 220,908 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,426,316 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 396,638 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 121,544 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 131,444 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 107,837 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 102,645 |
| Monarchies of Europe | 0 | - | 4.89 | 94,945 |
| Monarchies of Asia | 0 | - | 4.97 | 69,280 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 55,227 |
| Asian Country Superlatives | 0 | - | 4.83 | 79,140 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 128,298 |
| Countries that Start with A | 0 | - | 4.98 | 2,099,887 |
| Countries that Start with B | 0 | - | 4.95 | 2,237,365 |
| Countries that Start with C | 0 | - | 4.96 | 1,776,007 |
| Countries that Start with D | 0 | - | 4.96 | 677,741 |
| Countries that Start with E | 0 | - | 4.95 | 1,338,893 |
| Countries that Start with G | 0 | - | 4.97 | 1,462,468 |
| Countries that Start with H | 0 | - | 4.96 | 577,808 |
| Countries that Start with I | 0 | - | 4.92 | 1,256,728 |
| Countries that Start with J | 0 | - | 4.98 | 577,090 |
| Countries that Start with K | 0 | - | 4.97 | 790,120 |
| Countries that Start with L | 0 | - | 4.98 | 1,059,899 |
| Countries that Start with N | 0 | - | 4.93 | 1,086,665 |
| Countries that Start with P | 0 | - | 4.95 | 1,186,021 |
| Countries that Start with S | 0 | - | 4.98 | 1,714,702 |
| Countries that Start with T | 0 | - | 4.89 | 986,387 |
| Countries that Start with U | 0 | - | 4.97 | 884,962 |
| Countries that Start with V | 0 | - | 4.98 | 593,329 |
| Countries that Start with F | 0 | - | 4.83 | 595,634 |
| Countries that Start with M | 0 | - | 4.97 | 1,348,724 |
| The Only African Country ... | 0 | - | 4.98 | 126,409 |
| The Only American Country ... | 0 | - | 4.92 | 117,630 |
| African Countries by a Single Clue | 0 | - | 4.92 | 66,861 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 70,831 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 92,395 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 132,782 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.88 | 101,876 |
| European Countries with One Border | 0 | - | 4.97 | 178,048 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 174,527 |
| Countries Closest to Africa | 0 | - | 4.96 | 153,551 |
| World Geography on a Map #1 | 0 | - | 4.94 | 71,957 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 92,579 |
| Population Trivia | 0 | - | 4.30 | 27,203 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 56,638 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,031 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,569 |
| Biggest City by Region | 0 | - | 4.50 | 35,417 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,244 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 67,410 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 71,841 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 216,250 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 131,344 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,537 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 51,817 |
| Two Largest Cities by First Two Letters | 0 | - | 4.55 | 81,881 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 110,193 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,779 |
| Most Populous Countries in 1800 | 0 | - | 4.34 | 41,060 |
| World Capitals Quiz | 0 | - | 5.00 | 4,903,936 |
| Sahara Desert Countries | 0 | - | 4.98 | 152,463 |
| Himalayan Countries | 0 | - | 4.95 | 128,200 |
| Andean Countries | 0 | - | 4.93 | 72,220 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 59,355 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 117,673 |
| Coffee Producing Countries | 0 | - | 4.84 | 62,739 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 61,815 |
| Danube Countries | 0 | - | 4.97 | 62,490 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 99,125 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 83,506 |
| Countries with the Worst Passports | 0 | - | 4.93 | 77,962 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 142,905 |
| European Landlocked Countries | 0 | - | 4.99 | 143,259 |
| Partially Recognized Countries | 0 | - | 4.98 | 101,284 |
| Countries with the Most Species | 0 | - | 4.99 | 93,712 |
