| Most Populous World Capitals | 0 | - | 4.94 | 174,376 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,084 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,422 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,376 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,443 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,621 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,535 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,298 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,364 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,379 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,926 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,038 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,622 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,536 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,230 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,176 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,866 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,431 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,453 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,829 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,172 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,662 |
| Largest City by Island | 0 | - | 4.87 | 70,930 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,183 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,674 |
| Megacities on a World Map | 0 | - | 4.98 | 250,100 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,495 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,705 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,727 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,448 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,971 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,958 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,676 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,058 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,500 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,547 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,307 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,202 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,849 |
| Countries with Megacities | 0 | - | 4.99 | 246,119 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,760 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,226 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,659 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,353 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,960 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,468 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,032 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,241 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,432 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,635 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,824 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,878 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,639 |
| Biggest City by Region | 0 | - | 4.50 | 35,960 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,860 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,197 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,878 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,230 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,711 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,656 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,739 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,387 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,475 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,141 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,118 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,350 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,114 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,591 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,604 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,284 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,432 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,484 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,271 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,715 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,626 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,066 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,262 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,823 |
| Biggest Cities in History | 0 | - | 4.52 | 89,031 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,037 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,961 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,646 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,454 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,600 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 123,994 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,152 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,164 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,728 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,138 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,947 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,925 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,363 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,850 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,262 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,761 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,007 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,874 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,652 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,024 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,081 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,145 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,738 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,271 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,458 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,216 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,281 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,129 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,492 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,475 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,704 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,079 |
| Europe Capital to Country | 0 | - | 4.99 | 247,252 |
| Asia Capital to Country | 0 | - | 4.96 | 125,601 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,260 |
| European Capitals by Map | 0 | - | 4.99 | 135,887 |
| African Capitals by Map | 0 | - | 4.99 | 132,030 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,945 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,058 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,517 |
| European Coastal Capitals | 0 | - | 4.95 | 89,626 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,138 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,318 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,502 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,979 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,947 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,063 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,980 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,777 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,127 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,247 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,913 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,848 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 46,990 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,638 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,270 |
| Boundary Waters | 0 | - | 4.92 | 87,987 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,782 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,164 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,114 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,753 |
| Most Populous Islands | 0 | - | 4.78 | 121,898 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,187 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,387 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,685 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,787 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,665 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,884 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,584 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,752 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,244 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,793 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,043 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,847 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,718 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,829 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,588 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,483 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,535 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,643 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,326 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,451 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,725 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,453 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,522 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,321 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 117,998 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,068 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,639 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,360 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,124 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,691 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,352 |
| Capitals of the Stans | 0 | - | 4.95 | 26,361 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,242 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,438 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,521 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,519 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,697 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,163 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,845,349 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,366 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,863 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,167 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,291 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,506 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,835 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,119 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,658 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,580 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,863 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,142 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,508 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,284 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,660 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,601 |
| Landlocked Countries | 0 | - | 4.99 | 412,823 |
