| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,426 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,080 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,966 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,588 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,896 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,265 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,905 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,086 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,552 |
| Asia Capital to Country | 0 | - | 4.96 | 127,682 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,106 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,264 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,156 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,182 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,548 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,343 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,479 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,481 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,056 |
| Capitals of the Stans | 0 | - | 4.95 | 27,227 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,478 |
| Countries with Megacities | 0 | - | 4.99 | 267,802 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,127 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,330 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,457 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,426 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,912 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,932 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,948 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,896 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,523 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,162 |
| Random European Capital to Country | 0 | - | 4.98 | 192,336 |
| Random European Country to Capital | 0 | - | 4.93 | 166,071 |
| Random African Capital to Country | 0 | - | 4.97 | 101,468 |
| Random African Country to Capital | 0 | - | 4.94 | 71,880 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,568 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,460 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,505 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,807 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,992 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,355 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,714 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,080 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,174 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,948 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,801 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,643 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,553 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,942 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,373 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,118 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,090 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,711 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,832 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,296 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,552 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,729 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,996 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,483 |
| Name a City - European Countries | 0 | - | 4.89 | 66,372 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,972 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,807 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,600 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,826 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,202 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,432 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,600 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,058 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,413 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,969 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,555 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,843 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,886 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,033 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,252 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,772 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,841 |
| Largest City by Island | 0 | - | 4.87 | 72,560 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,484 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,851 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,238 |
| Megacities on a World Map | 0 | - | 4.98 | 257,419 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,776 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,832 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,827 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,755 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,703 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,084 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,419 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,839 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,019 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,007 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,603 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,277 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,571 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,921 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,863 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,663 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,326 |
| Europe Capital to Country | 0 | - | 4.99 | 252,545 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,260 |
| European Capitals by Map | 0 | - | 4.99 | 142,495 |
| African Capitals by Map | 0 | - | 4.99 | 142,562 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,106 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,371 |
| European Coastal Capitals | 0 | - | 4.95 | 91,479 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,240 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,188 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,237 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,796 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,118 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,462 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 65,106 |
| Most Populous Islands | 0 | - | 4.80 | 123,431 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,402 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,674 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,017 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,964 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,100 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,542 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,695 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,890 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,116 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,315 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,350 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,596 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,357 |
| Official Cities in the UK | 0 | - | 4.89 | 286,827 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,245 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,565 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,619 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,355 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,710 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,305 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,290 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,655 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,257 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 62,085 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,809 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,793 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,303 |
| Boundary Waters | 0 | - | 4.92 | 88,832 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,465 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,825 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,541 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,059 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,861 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,363 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,028 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,067 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,703 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,104 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,766 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,252 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,408 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,778 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,948 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,679 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,549 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,965 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,692 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,224 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,193 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,676 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,179 |
| Biggest City by Region | 0 | - | 4.50 | 36,416 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,369 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,327 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,460 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,605 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,599 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,051 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,963,668 |
| Landlocked Countries | 0 | - | 4.99 | 427,188 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,810 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,366 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,731 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,210 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,169 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,952 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,601 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,431 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,037 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,596 |
| Biggest Cities in China | 0 | - | 4.53 | 160,172 |
| Biggest Cities in India | 0 | - | 4.64 | 68,120 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,338 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,229 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,965 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,579 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,930 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,497 |
| Vietnam War Countries | 0 | - | 4.82 | 94,739 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,103 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,701 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,866 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,821 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,709 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,573 |
