| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,124 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,996 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,986 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,366 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,731 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,168 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,121 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,621 |
| Asia Capital to Country | 0 | - | 4.96 | 127,716 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,147 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,283 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,202 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,220 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,411 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,495 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,513 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,083 |
| Capitals of the Stans | 0 | - | 4.95 | 27,245 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,840 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,966 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,460 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,078 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,578 |
| Countries with Megacities | 0 | - | 4.99 | 268,016 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,225 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,375 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,554 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,479 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,269 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,588 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,173 |
| Random European Capital to Country | 0 | - | 4.98 | 192,383 |
| Random European Country to Capital | 0 | - | 4.93 | 166,106 |
| Random African Capital to Country | 0 | - | 4.97 | 101,521 |
| Random African Country to Capital | 0 | - | 4.95 | 71,922 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,845 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,598 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,490 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,571 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,858 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,048 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,392 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,847 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,740 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,750 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,130 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,240 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,990 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,932 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,716 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,702 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,983 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,414 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,271 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,124 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,732 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,864 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,331 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,590 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,830 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,471 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,605 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,843 |
| Name a City - European Countries | 0 | - | 4.89 | 66,413 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,273 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,211 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,450 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,733 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,109 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,474 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,667 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,071 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,424 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,987 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,614 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,891 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,915 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,079 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,280 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,818 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,898 |
| Largest City by Island | 0 | - | 4.87 | 72,593 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,511 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,913 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,272 |
| Megacities on a World Map | 0 | - | 4.98 | 257,571 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,379 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,870 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,860 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,839 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,892 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,070 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,040 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,631 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,298 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,581 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,940 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,892 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,707 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,389 |
| Europe Capital to Country | 0 | - | 4.99 | 252,656 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,335 |
| European Capitals by Map | 0 | - | 4.99 | 142,644 |
| African Capitals by Map | 0 | - | 4.99 | 142,659 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,163 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,421 |
| European Coastal Capitals | 0 | - | 4.95 | 91,522 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,422 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,791 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,263 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,852 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,421 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,139 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,733 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,187 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,505 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,387 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,636 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,395 |
| Official Cities in the UK | 0 | - | 4.89 | 286,962 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,746 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,744 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,383 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,745 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,360 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,689 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,836 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,892 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,572 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,015 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,765 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 107,101 |
| Most Populous Islands | 0 | - | 4.80 | 123,463 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,409 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,685 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,028 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,968 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,555 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,914 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,301 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,262 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 62,122 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,323 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,879 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,378 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,042 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,168 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,749 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,149 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,944 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,328 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,495 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,823 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,063 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,031 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,709 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,585 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,112 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,795 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,095 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,986 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,822 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,707 |
| Top 10 Richest Countries in Asia | 0 | - | 4.70 | 106,771 |
| Boundary Waters | 0 | - | 4.92 | 88,860 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,476 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,869 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,601 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,083 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,268 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,379 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,224 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,687 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,187 |
| Biggest City by Region | 0 | - | 4.50 | 36,424 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,384 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,261 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,219 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,333 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,464 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,629 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,029 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,644 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,486 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,060 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,609 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,621 |
| Biggest Cities in China | 0 | - | 4.53 | 160,268 |
| Biggest Cities in India | 0 | - | 4.64 | 68,135 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,794 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,973 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,625 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,957 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,549 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,989,322 |
| Landlocked Countries | 0 | - | 4.99 | 427,493 |
| Vietnam War Countries | 0 | - | 4.82 | 94,766 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,124 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,749 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,730 |
