| Most Populous World Capitals | 0 | - | 4.94 | 174,913 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,591 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,108 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,318 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,147 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,383 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,560 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,965 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,900 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,051 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,388 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,472 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,005 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,042 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,206 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,197 |
| Biggest Cities in the United States | 0 | - | 4.93 | 971,354 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,719 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,233 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,493 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,400 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,220 |
| Largest City by Island | 0 | - | 4.87 | 71,364 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,573 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,912 |
| Megacities on a World Map | 0 | - | 4.98 | 252,198 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,213 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,006 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,321 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,477 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,666 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,535 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,374 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,072 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,709 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,378 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,151 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,542 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,168 |
| Countries with Megacities | 0 | - | 4.99 | 248,723 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,032 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,488 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,402 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,439 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,369 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,701 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,676 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,264 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,159 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,070 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,319 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,173 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,976 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,827 |
| Biggest City by Region | 0 | - | 4.50 | 36,057 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,988 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,096 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,274 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,059 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,314 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,249 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,826 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,281 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,055 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,057 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,601 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,674 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,760 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,728 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,991 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,204 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,013 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,805 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,493 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,274 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,697 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,726 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,158 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,748 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,934 |
| Biggest Cities in History | 0 | - | 4.52 | 89,339 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,203 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,000 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,715 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,506 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,777 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,030 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,272 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,385 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,152 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,298 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,188 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,212 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,808 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,224 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,901 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,224 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,764 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,278 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,125 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,728 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,312 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,803 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,309 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,689 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,870 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,588 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,929 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,632 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,507 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,868 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,742 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,997 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,504 |
| Europe Capital to Country | 0 | - | 4.99 | 248,762 |
| Asia Capital to Country | 0 | - | 4.96 | 126,119 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,045 |
| European Capitals by Map | 0 | - | 4.99 | 137,558 |
| African Capitals by Map | 0 | - | 4.99 | 132,766 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,683 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,559 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,929 |
| European Coastal Capitals | 0 | - | 4.95 | 90,063 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,337 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,097 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,672 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,564 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,468 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,520 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,234 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,146 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,272 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,013 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,685 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,380 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,039 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,708 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,291 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,056 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 113,206 |
| Boundary Waters | 0 | - | 4.92 | 88,204 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,943 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,613 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,759 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,087 |
| Most Populous Islands | 0 | - | 4.79 | 122,177 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,232 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,446 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,644 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,547 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,406 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,309 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,690 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,997 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,761 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,994 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,413 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,130 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,813 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,874 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,163 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,963 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,808 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,067 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,747 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,877 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,940 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,075 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,942 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,663 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,534 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,463 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,900 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,777 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,733 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,966 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,492 |
| Capitals of the Stans | 0 | - | 4.95 | 26,585 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,481 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,568 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,757 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,024 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,038 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,227 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,133,654 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,187 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,143 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,386 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,389 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,941 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,903 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,555 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,822 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,708 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,936 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,263 |
| Cities in European Economic Areas on a Map | 0 | - | 4.69 | 17,248 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,695 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,700 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,563 |
