| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,219 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,332 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,570 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,413 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,312 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,644 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,610 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,587 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,953 |
| Asia Capital to Country | 0 | - | 4.96 | 126,855 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,620 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,665 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,414 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,425 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,574 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,338 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,206 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,012 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,541 |
| Capitals of the Stans | 0 | - | 4.95 | 26,910 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,897 |
| Countries with Megacities | 0 | - | 4.99 | 264,569 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,741 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,468 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,999 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,541 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,074 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,187 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,976 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,844 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,716 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,782 |
| Random European Capital to Country | 0 | - | 4.98 | 191,280 |
| Random European Country to Capital | 0 | - | 4.93 | 165,369 |
| Random African Capital to Country | 0 | - | 4.97 | 100,881 |
| Random African Country to Capital | 0 | - | 4.94 | 71,368 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,055 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,930 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,189 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,147 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,555 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,730 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,218 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,264 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,005 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,846 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,708 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,769 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,112 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,752 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,696 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,239 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,152 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,268 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,815 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,886 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,071 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,923 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,735 |
| Name a City - European Countries | 0 | - | 4.90 | 65,604 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,595 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,959 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,367 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,635 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,043 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,079 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,867 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,908 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,300 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,698 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,722 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,148 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,329 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,483 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,982 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,044 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,950 |
| Largest City by Island | 0 | - | 4.87 | 72,055 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,153 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,190 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,751 |
| Megacities on a World Map | 0 | - | 4.98 | 255,305 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,347 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,498 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,176 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,190 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,219 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,644 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,762 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,687 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,219 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,502 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,299 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,904 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,335 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,641 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,403 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,939 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,371 |
| Europe Capital to Country | 0 | - | 4.99 | 250,833 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,183 |
| European Capitals by Map | 0 | - | 4.99 | 139,911 |
| African Capitals by Map | 0 | - | 4.99 | 134,142 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,280 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,616 |
| European Coastal Capitals | 0 | - | 4.95 | 90,795 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,788 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,512 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,914 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,183 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,347 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,966 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,722 |
| Most Populous Islands | 0 | - | 4.80 | 123,041 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,325 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,565 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,874 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,873 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,512 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,312 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,141 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,520 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,521 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,691 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,698 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,170 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,907 |
| Official Cities in the UK | 0 | - | 4.89 | 284,459 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,664 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,465 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,535 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,693 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,201 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,512 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,204 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,283 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 16,027 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,747 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,400 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,421 |
| Boundary Waters | 0 | - | 4.92 | 88,571 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,249 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,269 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,715 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,603 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,578 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,575 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 68,998 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,627 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,788 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,677 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,371 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,211 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,183 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,000 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,234 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,690 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,286 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,853 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,775 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,422 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,841 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,738 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,564 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,044 |
| Biggest City by Region | 0 | - | 4.50 | 36,280 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,192 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,225 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,378 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,356 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,455 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,941 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,583,467 |
| Landlocked Countries | 0 | - | 4.99 | 421,976 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 576,864 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,585 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,200 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,175 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,535 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,534 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,009 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,032 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,437 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,477 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,220 |
| Biggest Cities in China | 0 | - | 4.53 | 159,023 |
| Biggest Cities in India | 0 | - | 4.64 | 67,838 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,594 |
| World Capitals Quiz | 0 | - | 5.00 | 5,083,295 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,756 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,750 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,588 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,542 |
| Vietnam War Countries | 0 | - | 4.82 | 94,354 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,790 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,968 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,778,788 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,400 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,923 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,977 |
