| Most Populous World Capitals | 0 | - | 4.94 | 176,903 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,226 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,123 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,231 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,983 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,918 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,711 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,684 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,982 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,408 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,119 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,729 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,861 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,327 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,586 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,827 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,250 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,418 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,592 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,195 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,215 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,813 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,891 |
| Largest City by Island | 0 | - | 4.87 | 72,592 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,510 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,268 |
| Megacities on a World Map | 0 | - | 4.98 | 257,552 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,354 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,865 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,858 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,832 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,889 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,807 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,154 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,402 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,492 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,474 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,381 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,626 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,561 |
| Countries with Megacities | 0 | - | 4.99 | 267,992 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,212 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,369 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,542 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,474 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,389 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,055 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,376 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,042 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,160 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,961 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,742 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,221 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,683 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,185 |
| Biggest City by Region | 0 | - | 4.50 | 36,423 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,381 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,332 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,464 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,627 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,607 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,483 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,566 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,847 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,018 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,388 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,748 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,258 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,215 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,576 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,024 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,639 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,485 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,058 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,868 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,231 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,121 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,071 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,421 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,069 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,207 |
| Biggest Cities in History | 0 | - | 4.52 | 90,718 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,223 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,153 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,936 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,620 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,848 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,651 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,976 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,615 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,741 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,739 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,707 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,839 |
| Biggest Cities Starting With A | 0 | - | 4.63 | 125,265 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,256 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,075 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,698 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,231 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,875 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,712 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,656 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,986 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,604 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,884 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,913 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,074 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,278 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,062 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,034 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,628 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,294 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,580 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,936 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,886 |
| Europe Capital to Country | 0 | - | 4.99 | 252,637 |
| Asia Capital to Country | 0 | - | 4.96 | 127,708 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,320 |
| European Capitals by Map | 0 | - | 4.99 | 142,615 |
| African Capitals by Map | 0 | - | 4.99 | 142,641 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,139 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,156 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,417 |
| European Coastal Capitals | 0 | - | 4.95 | 91,518 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,281 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,397 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,752 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,261 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,847 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,415 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,845 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,547 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,680 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,727 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,729 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,525 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,401 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,105 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,448 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.98 | 119,835 |
| Boundary Waters | 0 | - | 4.92 | 88,852 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,473 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,865 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,595 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,082 |
| Most Populous Islands | 0 | - | 4.80 | 123,462 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,407 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,684 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,975 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,493 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,359 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,117 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,026 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,992 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,134 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,553 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,729 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,909 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,123 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,009 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,945 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,887 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,579 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,477 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,945 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,388 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,722 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,713 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,379 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,738 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,355 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,812 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,508 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,679 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,074 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,181 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,834 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,895 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,322 |
| Capitals of the Stans | 0 | - | 4.95 | 27,239 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,222 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,035 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,104 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,507 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,932 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,425 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,985,851 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,265 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,879 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,565 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,622 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,655 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,238 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,111 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,575 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,210 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,035 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,147 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,568 |
| Cities in European Economic Areas on a Map | 0 | - | 4.73 | 18,255 |
