| Most Populous World Capitals | 0 | - | 4.94 | 176,596 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,651 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,836 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,797 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,129 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,328 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,562 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,669 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,168 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,865 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,552 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,615 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,136 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,302 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,134 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,230 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,803 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,774 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,857 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,882 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,478 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,533 |
| Largest City by Island | 0 | - | 4.87 | 72,377 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,372 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,067 |
| Megacities on a World Map | 0 | - | 4.98 | 256,592 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,425 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,719 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,568 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,012 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,547 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,717 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,898 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,014 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,387 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,266 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,100 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,457 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,909 |
| Countries with Megacities | 0 | - | 4.99 | 266,633 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,618 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,983 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,922 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,086 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,825 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,146 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,279 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,945 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,550 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,586 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,304 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,036 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,629 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,132 |
| Biggest City by Region | 0 | - | 4.50 | 36,369 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,308 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,575 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,293 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,429 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,507 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,551 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,250 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,862 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,564 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,837 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,122 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,521 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,969 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,921 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,174 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,330 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,368 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,011 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,833 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,727 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,921 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,981 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,994 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,369 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,703 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,164 |
| Biggest Cities in History | 0 | - | 4.52 | 90,527 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,885 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,132 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,900 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,473 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,260 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,584 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,866 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,344 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,664 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,634 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,968 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,751 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,070 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,115 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,894 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,512 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,999 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,648 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,645 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,295 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,871 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,228 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,572 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,680 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,812 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,151 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,683 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,818 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,473 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,135 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,478 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,818 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,681 |
| Europe Capital to Country | 0 | - | 4.99 | 251,844 |
| Asia Capital to Country | 0 | - | 4.96 | 127,305 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,804 |
| European Capitals by Map | 0 | - | 4.99 | 141,841 |
| African Capitals by Map | 0 | - | 4.99 | 141,879 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,812 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,752 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,084 |
| European Coastal Capitals | 0 | - | 4.95 | 91,211 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,129 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,224 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,541 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,116 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,552 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,801 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,736 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,457 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,004 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,190 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,500 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,416 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,864 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,962 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,169 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 116,717 |
| Boundary Waters | 0 | - | 4.92 | 88,723 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,377 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,604 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,218 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,871 |
| Most Populous Islands | 0 | - | 4.80 | 123,256 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,368 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,630 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,182 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,875 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,540 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,770 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,960 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,790 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,912 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,445 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,490 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,758 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,076 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,979 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,716 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,749 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,460 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,279 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,772 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,182 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,502 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,830 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,133 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,497 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,986 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,615 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,325 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,519 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,856 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,744 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,649 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,812 |
| Capitals of the Stans | 0 | - | 4.95 | 27,095 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,099 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,955 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,907 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,231 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,763 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,993 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,810,205 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,071 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,751 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,988 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,561 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,457 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,075 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,072 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,997 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,150 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,983 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,101 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,514 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,386 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 18,067 |
