| Most Populous World Capitals | 0 | - | 4.94 | 175,899 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,327 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,877 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,869 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,439 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,891 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,268 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,671 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,757 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,461 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,469 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,814 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,228 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,995 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,351 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,585 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,229 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,883 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,041 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,905 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,667 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,482 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,329 |
| Largest City by Island | 0 | - | 4.87 | 71,829 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,924 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,432 |
| Megacities on a World Map | 0 | - | 4.98 | 254,395 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,320 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,882 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,569 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,294 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,896 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,808 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,783 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,268 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,788 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,414 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,110 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,132 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,899 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,028 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,397 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,364 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,931 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,521 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,986 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,890 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,505 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,251 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,719 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,253 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,147 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,197 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,373 |
| Countries with Megacities | 0 | - | 4.99 | 262,983 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,208 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,183 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,506 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,222 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,541 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,077 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,967 |
| Biggest City by Region | 0 | - | 4.50 | 36,207 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,129 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,229 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,223 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,349 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,180 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,346 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,233 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,356 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,746 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,757 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,174 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,405 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,049 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,638 |
| Random European Capital to Country | 0 | - | 4.98 | 190,835 |
| Random European Country to Capital | 0 | - | 4.93 | 165,062 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,394 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,724 |
| Random African Capital to Country | 0 | - | 4.97 | 100,683 |
| Random African Country to Capital | 0 | - | 4.94 | 71,181 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,679 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,697 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,851 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,367 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,507 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,051 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,177 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,052 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,989 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,664 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,355 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,388 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,547 |
| Biggest Cities in History | 0 | - | 4.52 | 90,115 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,270 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,395 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,448 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,374 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,905 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 46,026 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,188 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,642 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,531 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,317 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,610 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,378 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,951 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,352 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,073 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,570 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,843 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,246 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,591 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,397 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,852 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,109 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,287 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,879 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,033 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,056 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,815 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,547 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,461 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,288 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,598 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,929 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,543 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,930 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,238 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,717 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,237 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,525 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,207 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,917 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,079 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,225 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,899 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,236 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,712 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,076 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,682 |
| Most Populous Islands | 0 | - | 4.80 | 122,898 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,296 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,529 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,806 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,208 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,395 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,736 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,730 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,543 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,931 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,358 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,922 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,978 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,714 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,291 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,100 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,547 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,222 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,642 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,409 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,627 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,466 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,439 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,977 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,965 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,950 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,812 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,007 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,375 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,890 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,596 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,889 |
| Boundary Waters | 0 | - | 4.92 | 88,454 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,145 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,051 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,402 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,447 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,649 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,809 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,436 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,084 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,809 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,534 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,970 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,463 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,074 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,163 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,287 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,055 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,385 |
| Biggest Cities in France | 0 | - | 4.70 | 223,917 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,085 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,979 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,878 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,214 |
