| Most Populous World Capitals | 0 | - | 4.94 | 176,608 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,705 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,841 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,810 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,141 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,335 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,589 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,679 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,177 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,870 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,556 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,624 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,141 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,309 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,135 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,254 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,872 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,797 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,860 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,888 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,484 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,542 |
| Largest City by Island | 0 | - | 4.87 | 72,378 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,375 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,073 |
| Megacities on a World Map | 0 | - | 4.98 | 256,606 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,465 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,720 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,573 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,023 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,555 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,756 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,901 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,020 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,389 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,288 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,103 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,462 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,928 |
| Countries with Megacities | 0 | - | 4.99 | 266,666 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,635 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,989 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,936 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,100 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,893 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,167 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,280 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,946 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,560 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,592 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,313 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,036 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,631 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,133 |
| Biggest City by Region | 0 | - | 4.50 | 36,371 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,309 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,593 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,295 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,429 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,510 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,553 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,255 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,868 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,567 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,842 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,125 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,522 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,974 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,926 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,181 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,347 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,377 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,033 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,837 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,744 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,958 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,006 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,995 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,370 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,712 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,166 |
| Biggest Cities in History | 0 | - | 4.52 | 90,532 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,889 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,133 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,901 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,477 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,276 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,586 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,868 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,346 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,665 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,636 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,978 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,752 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,072 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,117 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,896 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,515 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,002 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,656 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,664 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,300 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,873 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,233 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,577 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,684 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,813 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,155 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,691 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,822 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,474 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,139 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,481 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,828 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,685 |
| Europe Capital to Country | 0 | - | 4.99 | 251,852 |
| Asia Capital to Country | 0 | - | 4.96 | 127,306 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,816 |
| European Capitals by Map | 0 | - | 4.99 | 141,865 |
| African Capitals by Map | 0 | - | 4.99 | 141,889 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,813 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,761 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,089 |
| European Coastal Capitals | 0 | - | 4.95 | 91,216 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,133 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,244 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,559 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,118 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,555 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,807 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,736 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,458 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,012 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,196 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,504 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,417 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,870 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,965 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,174 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 116,989 |
| Boundary Waters | 0 | - | 4.92 | 88,726 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,379 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,606 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,224 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,877 |
| Most Populous Islands | 0 | - | 4.80 | 123,257 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,368 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,631 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,194 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,883 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,555 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,772 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,964 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,791 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,917 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,448 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,492 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,762 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,078 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,980 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,724 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,752 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,461 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,285 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,776 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,184 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,519 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,844 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,138 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,500 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,998 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,617 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,333 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,520 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,858 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,768 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,653 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,813 |
| Capitals of the Stans | 0 | - | 4.95 | 27,096 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,102 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,955 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,947 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,233 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,764 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,000 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,813,938 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,075 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,754 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,990 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,562 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,460 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,081 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,073 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,019 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,151 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,987 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,101 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,517 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,387 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 18,067 |
