| Most Populous World Capitals | 0 | - | 4.94 | 174,561 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,536 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,668 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,712 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,976 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,885 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,088 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,504 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,541 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,600 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,065 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,181 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,762 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,698 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,546 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,678 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,829 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,821 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,643 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,026 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,510 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,866 |
| Largest City by Island | 0 | - | 4.87 | 71,059 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,397 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,728 |
| Megacities on a World Map | 0 | - | 4.98 | 251,013 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,334 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,807 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,883 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,796 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,167 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,107 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,053 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,368 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,575 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,096 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,522 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,305 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,295 |
| Countries with Megacities | 0 | - | 4.99 | 247,020 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,175 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,008 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,595 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,915 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,245 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,689 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,542 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,124 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,503 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,613 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,811 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,923 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,908 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,711 |
| Biggest City by Region | 0 | - | 4.50 | 35,999 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,904 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,021 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,222 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,925 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,260 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,853 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,954 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,902 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,501 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,622 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,286 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,299 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,461 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,314 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,746 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,805 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,516 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,545 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,218 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,407 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,027 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,659 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,092 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,406 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,863 |
| Biggest Cities in History | 0 | - | 4.52 | 89,136 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,123 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,978 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,669 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,464 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,656 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,278 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,188 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,223 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,842 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,201 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,006 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,324 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,521 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,977 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,609 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,921 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,196 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,003 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,131 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,259 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,160 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,357 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,963 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,420 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,610 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,311 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,497 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,313 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,295 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,625 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,582 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,824 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,230 |
| Europe Capital to Country | 0 | - | 4.99 | 247,956 |
| Asia Capital to Country | 0 | - | 4.96 | 125,774 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,490 |
| European Capitals by Map | 0 | - | 4.99 | 136,321 |
| African Capitals by Map | 0 | - | 4.99 | 132,194 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,154 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,213 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,641 |
| European Coastal Capitals | 0 | - | 4.95 | 89,788 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,195 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,863 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,875 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,431 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,140 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,134 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,120 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,033 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,935 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,335 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,289 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,947 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,047 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,071 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,785 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,524 |
| Boundary Waters | 0 | - | 4.92 | 88,051 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,822 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,298 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,316 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,851 |
| Most Populous Islands | 0 | - | 4.79 | 121,999 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,203 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,408 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,997 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,025 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,877 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,011 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,621 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,831 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,417 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,851 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,155 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,944 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,753 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,844 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,797 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,606 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,635 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,788 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,457 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,613 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,360 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,932 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,681 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,426 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,143 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,193 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,718 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,475 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,306 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,786 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,393 |
| Capitals of the Stans | 0 | - | 4.95 | 26,414 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,322 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,479 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,612 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,683 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,796 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,385 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,927,247 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 104,220 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,962 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,236 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,313 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,685 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,858 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,262 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,709 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,621 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,882 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,171 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,558 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,411 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,897 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,679 |
| Landlocked Countries | 0 | - | 4.99 | 413,706 |
