| Biggest Cities in the World | 0 | - | 4.91 | 801,372 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,097 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,363 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,170 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,066 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,832 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 143,779 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,235 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,837 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,400 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,223 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,334 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,868 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,957 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,212 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,933 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,551 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,887 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,464 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,477 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,113 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,045 |
| Largest City by Island | 0 | - | 4.87 | 72,099 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,193 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,250 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,816 |
| Megacities on a World Map | 0 | - | 4.98 | 255,456 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,531 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,224 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,317 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,757 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,902 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,644 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,008 |
| Countries with Megacities | 0 | - | 4.99 | 264,830 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,836 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,530 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,095 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,609 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,595 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,423 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,233 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,914 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,762 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,215 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,822 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,122 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,773 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,574 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,056 |
| Biggest City by Region | 0 | - | 4.50 | 36,293 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,203 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,023 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,655 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,900 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,139 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,233 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,384 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,369 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,761 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,468 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,976 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,286 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,204 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,603 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,779 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,251 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,913 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,309 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,377 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,586 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,593 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,775 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,244 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,083 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,521 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,526 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,997 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,094 |
| Biggest Cities in History | 0 | - | 4.52 | 90,322 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,249 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,098 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,857 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,575 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,494 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,735 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,551 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,569 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,812 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,610 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,207 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,646 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,330 |
| Boundary Waters | 0 | - | 4.92 | 88,597 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,268 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,313 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,786 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,654 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,576 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,908 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,721 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,775 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,193 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,361 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,520 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,004 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,319 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,613 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,002 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,097 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,651 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,277 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,538 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,318 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,942 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,354 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,655 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,432 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,233 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,397 |
| Most Populous Islands | 0 | - | 4.80 | 123,074 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,328 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,576 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,882 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,328 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,542 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,593 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,009 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,375 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,011 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,599 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,261 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,293 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,247 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,676 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,818 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,949 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,007 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,467 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,238 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,968 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,479 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,734 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,410 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,289 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,713 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,386 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,595 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,563 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,184 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,937 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,614,313 |
| Landlocked Countries | 0 | - | 4.99 | 422,373 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,920 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,831 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,872 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,541 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,456 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,725 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,059 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,605 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,866 |
| Population Trivia | 0 | - | 4.32 | 27,523 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,611 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,499 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,166 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,061 |
| World Capitals Quiz | 0 | - | 5.00 | 5,085,598 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,716 |
| Himalayan Countries | 0 | - | 4.95 | 138,915 |
| Andean Countries | 0 | - | 4.93 | 84,729 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,932 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,991 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,548 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,883 |
| Danube Countries | 0 | - | 4.97 | 72,071 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,088 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,473 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,394 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,883 |
| European Landlocked Countries | 0 | - | 4.99 | 147,197 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,726 |
| Countries with the Most Species | 0 | - | 4.99 | 103,280 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,842 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,617 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,738 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,576 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,267 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,711 |
| Countries in the Alps | 0 | - | 4.87 | 118,273 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,367 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,112 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,694 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,636 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,559 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,984 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,722 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,545 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,203 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,895 |
