| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,840 |
| Countries with Megacities | 0 | - | 4.99 | 194,271 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,025 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,648 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,391 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,506 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,541 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,052 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,125 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,192 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,091 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,072 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,398 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,280 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 135,971 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,666 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,186 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,142 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,406 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,291 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,433 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,301 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 203,734 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,707 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,120 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,541 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,267 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,482 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 142,648 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 138,998 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,225 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 48,942 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 203,090 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 159,168 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 155,777 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 79,827 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.89 | 83,733 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 144,657 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 160,964 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,675 |
| Biggest Cities in the World | 0 | - | 4.89 | 676,906 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 66,357 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 92,324 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.88 | 50,277 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,152 |
| Biggest City by Time Zone | 0 | - | 4.82 | 53,146 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,279 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 166,782 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 90,611 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 94,160 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 53,452 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 69,885 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 63,985 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 41,913 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,260 |
| Olympic Host Countries | 0 | - | 4.98 | 160,076 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,624 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 228,347 |
| The Only European Country ... | 0 | - | 4.94 | 175,618 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 191,406 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,343 |
| Most Populous Country by First Two Letters | 0 | - | 4.72 | 66,353 |
| Demographics Multiple Choice | 0 | - | 4.66 | 39,515 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 366,597 |
| Biggest Cities in the United States | 0 | - | 4.92 | 806,793 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 320,369 |
| Countries of Africa | 0 | - | 5.00 | 2,136,052 |
| Most Populous Countries by Year | 0 | - | 4.79 | 92,511 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 18,769 |
| Boundary Waters | 0 | - | 4.93 | 80,390 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 73,650 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,033 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,220 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,411 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,259 |
| Biggest European Cities by Century | 0 | - | 4.97 | 117,557 |
| Megacities on a World Map | 0 | - | 4.98 | 218,841 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,316 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,591 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 82,675 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 149,778 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 183,084 |
| Countries of the Middle East | 0 | - | 4.96 | 171,085 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 73,602 |
| Slavic Countries | 0 | - | 4.96 | 99,680 |
| African Island Countries | 0 | - | 4.96 | 88,392 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 36,870 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 109,804 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 92,510 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 117,896 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 125,284 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 196,191 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 159,413 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 124,676 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 106,366 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 131,165 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 137,258 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 103,772 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 129,612 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 87,878 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 95,631 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 507,888 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,168,935 |
| Countries of North America Quiz | 0 | - | 5.00 | 867,397 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.82 | 29,741 |
| Most Populous Islands | 0 | - | 4.71 | 111,885 |
| Islands by Largest City #1 | 0 | - | 4.48 | 81,918 |
| Most Populous Countries in 1950 | 0 | - | 4.55 | 70,550 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 24,558 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 63,675 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,529 |
| Biggest Cities in Asia | 0 | - | 4.94 | 94,772 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 42,838 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,655 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.90 | 205,173 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,359,094 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 100,838 |
| Asian Countries with the Shortest Names | 0 | - | 4.98 | 120,400 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 99,850 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 84,245 |
| Monarchies of Europe | 0 | - | 4.88 | 86,089 |
| Monarchies of Asia | 0 | - | 4.95 | 53,519 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 50,123 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 109,648 |
| Countries that Start with A | 0 | - | 4.98 | 1,922,950 |
| Countries that Start with B | 0 | - | 4.96 | 2,061,569 |
| Countries that Start with C | 0 | - | 4.96 | 1,629,349 |
| Countries that Start with D | 0 | - | 4.96 | 582,159 |
| Countries that Start with E | 0 | - | 4.95 | 1,218,328 |
| Countries that Start with G | 0 | - | 4.97 | 1,337,634 |
| Countries that Start with H | 0 | - | 4.95 | 496,382 |
| Countries that Start with I | 0 | - | 4.92 | 1,149,592 |
| Countries that Start with J | 0 | - | 4.98 | 500,092 |
| Countries that Start with K | 0 | - | 4.97 | 702,540 |
| Countries that Start with L | 0 | - | 4.98 | 960,527 |
| Countries that Start with N | 0 | - | 4.92 | 986,965 |
| Countries that Start with P | 0 | - | 4.94 | 1,089,995 |
| Countries that Start with S | 0 | - | 4.98 | 1,590,222 |
| Countries that Start with T | 0 | - | 4.88 | 899,992 |
| Countries that Start with U | 0 | - | 4.96 | 813,017 |
| Countries that Start with V | 0 | - | 4.98 | 544,683 |
| Countries that Start with F | 0 | - | 4.82 | 529,740 |
| Countries that Start with M | 0 | - | 4.97 | 1,242,348 |
| The Only African Country ... | 0 | - | 4.98 | 104,444 |
| The Only American Country ... | 0 | - | 4.94 | 108,742 |
| African Countries by a Single Clue | 0 | - | 4.91 | 63,134 |
| African Diaspora - Top 10 Countries | 0 | - | 4.91 | 65,410 |
| European Diaspora - Top 11 Countries | 0 | - | 4.91 | 82,658 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.81 | 37,134 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 119,300 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 90,149 |
| European Countries with One Border | 0 | - | 4.96 | 148,926 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 143,200 |
| Asian Countries with the Fewest Borders | 0 | - | 4.81 | 87,492 |
| Countries Closest to Africa | 0 | - | 4.95 | 144,042 |
| World Geography on a Map #1 | 0 | - | 4.93 | 66,725 |
| Islands by Largest City #2 | 0 | - | 4.72 | 26,583 |
| Population Trivia | 0 | - | 4.35 | 26,207 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,261 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,844 |
| Biggest City by Region | 0 | - | 4.48 | 33,173 |
| Most Populous 2nd Cities | 0 | - | 4.72 | 52,929 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,010 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,008 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,114 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,092 |
| Largest World Capitals with Exceptions | 0 | - | 4.71 | 50,184 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 67,547 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 300,869 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 95,862 |
| Ten Northernmost Megacities | 0 | - | 4.49 | 46,778 |
| Ten Southernmost Megacities | 0 | - | 4.80 | 45,957 |
| Most Populous Countries in 1800 | 0 | - | 4.34 | 38,133 |
| World Capitals Quiz | 0 | - | 5.00 | 4,450,285 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 316,272 |
| Countries on the Equator | 0 | - | 4.82 | 131,484 |
| Members of the Arab League | 0 | - | 4.81 | 58,714 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,836 |
| Himalayan Countries | 0 | - | 4.95 | 102,124 |
| Andean Countries | 0 | - | 4.90 | 56,715 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,533 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,468 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,763 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,433 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,622 |
| Danube Countries | 0 | - | 4.97 | 56,310 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,326 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,542 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,150 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,658 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,043 |
| European Landlocked Countries | 0 | - | 4.99 | 114,777 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,609 |
| Countries with the Most Species | 0 | - | 4.99 | 89,051 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,680 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,395 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,766 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,655 |
| UK Immigration by Country | 0 | - | 4.95 | 123,931 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,045 |
