| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,868 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,842 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,436 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,830 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,910 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,344 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,844 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,992 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,438 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,453 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,763 |
| Asia Capital to Country | 0 | - | 4.96 | 126,670 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,411 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,590 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,015 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,098 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,382 |
| Capitals of the Stans | 0 | - | 4.95 | 26,847 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,977 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,189 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,350 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,817 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,831 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,369 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,482 |
| Countries with Megacities | 0 | - | 4.99 | 263,477 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,321 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,260 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,616 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,294 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,965 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,673 |
| Random European Capital to Country | 0 | - | 4.98 | 190,924 |
| Random European Country to Capital | 0 | - | 4.93 | 165,133 |
| Random African Capital to Country | 0 | - | 4.97 | 100,739 |
| Random African Country to Capital | 0 | - | 4.94 | 71,217 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,673 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,279 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,632 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,633 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,001 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,000 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,896 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,722 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,826 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,915 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,395 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,547 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,089 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,970 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,576 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,097 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,375 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,914 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,839 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,539 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,699 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,932 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,731 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,062 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,525 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,649 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,357 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,533 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,206 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,077 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,559 |
| Name a City - European Countries | 0 | - | 4.90 | 65,393 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,763 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,709 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,753 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,889 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,637 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,613 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,452 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,905 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,162 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,320 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,891 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,561 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,417 |
| Largest City by Island | 0 | - | 4.87 | 71,877 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,004 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,968 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,536 |
| Megacities on a World Map | 0 | - | 4.98 | 254,574 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,242 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,353 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,951 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,693 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,573 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,402 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,009 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,291 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,200 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,758 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,254 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,545 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,256 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,695 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,109 |
| Europe Capital to Country | 0 | - | 4.99 | 250,334 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,889 |
| European Capitals by Map | 0 | - | 4.99 | 139,189 |
| African Capitals by Map | 0 | - | 4.99 | 133,804 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,084 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,432 |
| European Coastal Capitals | 0 | - | 4.95 | 90,610 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,035 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,078 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,834 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,977 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,133 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,863 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,256 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,742 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,479 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,849 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,288 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,959 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,422 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,264 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,426 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,994 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,748 |
| Official Cities in the UK | 0 | - | 4.89 | 283,779 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,829 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,488 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,044 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,280 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,180 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,180 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,993 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,650 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,296 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,850 |
| Most Populous Islands | 0 | - | 4.80 | 122,935 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,302 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,534 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,820 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,227 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,445 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,910 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,533 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,389 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,362 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,155 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,713 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,846 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,807 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,108 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,909 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,397 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,163 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,662 |
| Vietnam War Countries | 0 | - | 4.82 | 94,228 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,080 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,541 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,085 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,133 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,029 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,976 |
| Top 10 Richest Countries in Asia | 0 | - | 4.74 | 105,696 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,779 |
| Syria Country Quiz | 0 | - | 4.81 | 32,779 |
| Boundary Waters | 0 | - | 4.92 | 88,472 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,170 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,099 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,466 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,468 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,694 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,138 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,580 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,088 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,987 |
| Biggest City by Region | 0 | - | 4.50 | 36,225 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,141 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,137 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,329 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,309 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,127 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,188 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,352 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,264 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 81,470 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,820 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,727 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,880 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,257 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,418 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,102 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,505 |
| Biggest Cities in China | 0 | - | 4.53 | 158,620 |
| Biggest Cities in India | 0 | - | 4.64 | 67,755 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,899 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,046 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,823 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,694 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,494 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,524 |
