| Biggest Cities in the World | 0 | - | 4.92 | 790,929 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,163 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,711 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,761 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,101 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,948 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,206 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,556 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,568 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,849 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,658 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,092 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,212 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,791 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,747 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,607 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,415 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,975 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,599 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,915 |
| Largest City by Island | 0 | - | 4.87 | 71,092 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,419 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,610 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,120 |
| Megacities on a World Map | 0 | - | 4.98 | 251,142 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,559 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,830 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,918 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,882 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,223 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,712 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,111 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,445 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,551 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,274 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,837 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,696 |
| Countries that Start with C | 0 | - | 4.96 | 1,811,014 |
| Countries that Start with D | 0 | - | 4.96 | 702,027 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,081 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,452 |
| Countries that Start with H | 0 | - | 4.96 | 598,354 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,728 |
| Countries that Start with J | 0 | - | 4.98 | 596,418 |
| Countries that Start with K | 0 | - | 4.97 | 809,753 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,322 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,213 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,982 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,151 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,555 |
| Countries that Start with U | 0 | - | 4.97 | 900,184 |
| Countries that Start with V | 0 | - | 4.98 | 605,346 |
| Countries that Start with F | 0 | - | 4.83 | 612,512 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,855 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,098 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,479 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,592 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,573 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,334 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,137 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,028 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,383 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,328 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,507 |
| Countries with Megacities | 0 | - | 4.99 | 247,351 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,337 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,127 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,759 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,045 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,560 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,138 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,605 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,666 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,875 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,930 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,801 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,828 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,960 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,918 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,727 |
| Biggest City by Region | 0 | - | 4.50 | 36,006 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,916 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,340 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,506 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,377 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,027 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,231 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,937 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,778 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,856 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,573 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,573 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,265 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,050 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,012 |
| One Country By Letter By Continent | 0 | - | 5.00 | 121,831 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,226 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,941 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,127 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,974 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,536 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,717 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,360 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,369 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,887 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,729 |
| NATO Countries | 0 | - | 4.98 | 276,104 |
| EU Countries Quiz | 0 | - | 4.99 | 270,195 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,140 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,616 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,168 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,856 |
| Countries with NO Military | 0 | - | 4.97 | 61,226 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,946 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,443 |
| Biggest Cities in History | 0 | - | 4.52 | 89,163 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,136 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,671 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,383 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,204 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,875 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,208 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,453 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,548 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,005 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,648 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,950 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,248 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,036 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,097 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,250 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,332 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,674 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,103 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,182 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,423 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,022 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,470 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,657 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,870 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,980 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,676 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,471 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,243 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,443 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,963 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,148 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,085 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,556 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,372 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,337 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,676 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,618 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,869 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,287 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,754 |
| Coldest World Capitals | 0 | - | 4.95 | 133,071 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,551 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,336 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,785 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,186 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,232 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,980 |
| Buddhist Countries | 0 | - | 4.96 | 143,007 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,021 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,183 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,198 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,182 |
| Countries that Start with R | 0 | - | 4.43 | 443,885 |
| World Currency Quiz | 0 | - | 4.92 | 298,759 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,138 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,047 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,974 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,295 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,462 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,848 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,446 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,945 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,893 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,752 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,261 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,971 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,705 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,661 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,049 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,412 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,180 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,586 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,094 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,349 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,625 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,739 |
| Most Populous Islands | 0 | - | 4.79 | 122,023 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,211 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,411 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,075 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,094 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,934 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,039 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,631 |
