| Biggest Cities in the World | 0 | - | 4.92 | 803,712 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,291 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,722 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,650 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,838 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,215 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,078 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,563 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,085 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,734 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,475 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,545 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,072 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,198 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,864 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,846 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,588 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,526 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,751 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,769 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,383 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,414 |
| Largest City by Island | 0 | - | 4.87 | 72,285 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,323 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,506 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,000 |
| Megacities on a World Map | 0 | - | 4.98 | 256,236 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,661 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,476 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,809 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,431 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,504 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,911 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,530 |
| Countries with Megacities | 0 | - | 4.99 | 266,026 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,316 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,779 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,576 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,903 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,829 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,904 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,338 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,871 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,020 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,395 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,624 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,835 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,962 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,107 |
| Biggest City by Region | 0 | - | 4.50 | 36,340 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,271 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,027 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,239 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,898 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,340 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,460 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,475 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,169 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,522 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,142 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,662 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,472 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,748 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,012 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,427 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,969 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,349 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,346 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,861 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,820 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,057 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,041 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,287 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,865 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,754 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,559 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,137 |
| Biggest Cities in History | 0 | - | 4.52 | 90,463 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,747 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,123 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,892 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,553 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,830 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,632 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,987 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,042 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,836 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,425 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,893 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,556 |
| Boundary Waters | 0 | - | 4.92 | 88,691 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,346 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,509 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,097 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,810 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,368 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,164 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,830 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,077 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,455 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,582 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,718 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,103 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,428 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,061 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,236 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,723 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,728 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,575 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,728 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,412 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,092 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,435 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,749 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,609 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,454 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,694 |
| Most Populous Islands | 0 | - | 4.80 | 123,201 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,354 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,608 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,940 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,411 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,697 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,695 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,055 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,434 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,739 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,991 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,443 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,380 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,700 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,880 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,044 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,975 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,603 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,695 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,405 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,200 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,683 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,791 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,993 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,733 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,378 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,681 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,742 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,817 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,407 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,103 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,751,735 |
| Landlocked Countries | 0 | - | 4.99 | 424,080 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,055 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,917 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,121 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,715 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,816 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,830 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,242 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,683 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,013 |
| Population Trivia | 0 | - | 4.32 | 27,540 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,708 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,620 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,387 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,092 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,489 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,455 |
| Himalayan Countries | 0 | - | 4.94 | 139,621 |
| Andean Countries | 0 | - | 4.94 | 85,107 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,293 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,527 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,864 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,153 |
| Danube Countries | 0 | - | 4.97 | 72,233 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,355 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,658 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,763 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,260 |
| European Landlocked Countries | 0 | - | 4.99 | 147,410 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,017 |
| Countries with the Most Species | 0 | - | 4.99 | 103,443 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,144 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,692 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,803 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,716 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,446 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,865 |
| Countries in the Alps | 0 | - | 4.87 | 118,516 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,163 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,501 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,827 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,835 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,761 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,107 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,953 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,695 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,318 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,030 |
