| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,507 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,012 |
| Countries with Megacities | 0 | - | 4.99 | 246,564 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,935 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,811 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,384 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,761 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,535 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,493 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,783 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,834 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,829 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,445 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,551 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,558 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,908 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,943 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,161 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,116 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,268 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,863 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,362 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,545 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,407 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,246 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,226 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,571 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,534 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,771 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,168 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,074 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,042 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,601 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,837 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,911 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,853 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,929 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,799 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,958 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,810 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,344 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,559 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,511 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,024 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,112 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,428 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,932 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,084 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,605 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,595 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,791 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,803 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,922 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,451 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,486 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,534 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,024 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,133 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,720 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,643 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,901 |
| Olympic Host Countries | 0 | - | 4.98 | 198,842 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,779 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,474 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,257 |
| The Only European Country ... | 0 | - | 4.91 | 213,722 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,045 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,458 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,182 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,650 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,083 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,492 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,186 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,701 |
| Countries of Africa | 0 | - | 5.00 | 2,506,647 |
| Boundary Waters | 0 | - | 4.92 | 88,026 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,241 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,373 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,806 |
| Largest City by Island | 0 | - | 4.87 | 71,009 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,358 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,504 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,512 |
| Megacities on a World Map | 0 | - | 4.98 | 250,831 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,772 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,834 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,649 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,114 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,234 |
| Countries of the Middle East | 0 | - | 4.96 | 198,839 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,218 |
| Slavic Countries | 0 | - | 4.96 | 110,821 |
| African Island Countries | 0 | - | 4.96 | 100,749 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,482 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,291 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,958 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,668 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,449 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,044 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,750 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,578 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,673 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,734 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,133 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,139 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,540 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,221 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,376 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,202 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,480 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,047 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,428 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,278 |
| Most Populous Islands | 0 | - | 4.79 | 121,956 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,197 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,400 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,709 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,117 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,970 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,254 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,552 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,895 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,471 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,276 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,245 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,896,507 |
| Landlocked Countries | 0 | - | 4.99 | 413,334 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,158 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,318 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,313 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,340 |
| Monarchies of Europe | 0 | - | 4.90 | 97,282 |
| Monarchies of Asia | 0 | - | 4.97 | 70,582 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 56,812 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,421 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,699 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,133 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,257 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,822 |
| Countries that Start with D | 0 | - | 4.96 | 701,198 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,118 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,351 |
| Countries that Start with H | 0 | - | 4.96 | 597,655 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,958 |
| Countries that Start with J | 0 | - | 4.98 | 595,728 |
| Countries that Start with K | 0 | - | 4.97 | 809,148 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,569 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,436 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,268 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,102 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,986 |
| Countries that Start with U | 0 | - | 4.97 | 899,754 |
| Countries that Start with V | 0 | - | 4.98 | 604,924 |
| Countries that Start with F | 0 | - | 4.83 | 611,957 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,995 |
| The Only African Country ... | 0 | - | 4.99 | 128,331 |
| The Only American Country ... | 0 | - | 4.92 | 120,723 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,766 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,235 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,018 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,323 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,994 |
| European Countries with One Border | 0 | - | 4.97 | 181,576 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,486 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,071 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,145 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,968 |
| Population Trivia | 0 | - | 4.32 | 27,419 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,885 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,892 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,679 |
| Biggest City by Region | 0 | - | 4.50 | 35,990 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,892 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,521 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,102 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,401 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,538 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,008 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,215 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,904 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,749 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,248 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,808 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,632 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,463 |
| Himalayan Countries | 0 | - | 4.95 | 135,249 |
| Andean Countries | 0 | - | 4.94 | 82,769 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,181 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,122 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,851 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,557 |
| Danube Countries | 0 | - | 4.97 | 71,054 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,718 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,508 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,405 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,333 |
| European Landlocked Countries | 0 | - | 4.99 | 145,721 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,156 |
