| Biggest Cities in the World | 0 | - | 4.91 | 804,503 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,351 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,822 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,775 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,083 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,314 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,492 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,655 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,155 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,844 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,545 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,607 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,129 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,286 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,099 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,147 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,580 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,718 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,837 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,869 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,462 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,513 |
| Largest City by Island | 0 | - | 4.87 | 72,366 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,367 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,579 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,057 |
| Megacities on a World Map | 0 | - | 4.98 | 256,541 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,708 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,557 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,971 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,533 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,618 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,354 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,871 |
| Countries with Megacities | 0 | - | 4.99 | 266,552 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,582 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,959 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,877 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,065 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,888 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,994 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,384 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,205 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,085 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,443 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,646 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,103 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,019 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,627 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,129 |
| Biggest City by Region | 0 | - | 4.50 | 36,367 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,302 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,532 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,272 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,938 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,512 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,569 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,291 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,428 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,504 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,283 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,547 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,236 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,833 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,549 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,826 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,112 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,513 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,992 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,365 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,671 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,941 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,904 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,153 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,294 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,357 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,980 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,820 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,677 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,164 |
| Biggest Cities in History | 0 | - | 4.52 | 90,519 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,867 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,131 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,900 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,582 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,859 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,661 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,050 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,100 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,881 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,495 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,979 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,631 |
| Boundary Waters | 0 | - | 4.92 | 88,718 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,372 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,589 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,201 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,861 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,597 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,282 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,864 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,205 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,554 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,667 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,792 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,142 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,465 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,230 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,329 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,920 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,747 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,667 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,809 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,462 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,125 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,472 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,811 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,673 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,533 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,783 |
| Most Populous Islands | 0 | - | 4.80 | 123,244 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,366 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,623 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,959 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,439 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,745 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,728 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,072 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,454 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,959 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,162 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,487 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,413 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,841 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,942 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,153 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,978 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,692 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,740 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,451 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,263 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,756 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,807 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,152 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,853 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,511 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,762 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,784 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,904 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,479 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,176 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,799,351 |
| Landlocked Countries | 0 | - | 4.99 | 424,739 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,095 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,952 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,207 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,754 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,967 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,871 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,307 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,714 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,058 |
| Population Trivia | 0 | - | 4.32 | 27,549 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,746 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,797 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,447 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,101 |
| World Capitals Quiz | 0 | - | 5.00 | 5,100,324 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,735 |
| Himalayan Countries | 0 | - | 4.93 | 139,850 |
| Andean Countries | 0 | - | 4.94 | 85,223 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,395 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,707 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,960 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,265 |
| Danube Countries | 0 | - | 4.97 | 72,291 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,440 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,728 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,901 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,399 |
| European Landlocked Countries | 0 | - | 4.99 | 147,481 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,124 |
| Countries with the Most Species | 0 | - | 4.99 | 103,503 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,270 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,719 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,829 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,766 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,499 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,924 |
| Countries in the Alps | 0 | - | 4.87 | 118,627 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,388 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,644 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,890 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,917 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,843 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,153 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,280 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,787 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,354 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,086 |
