| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,038 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,232 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,501 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,167 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,115 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,503 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,944 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,537 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,852 |
| Asia Capital to Country | 0 | - | 4.96 | 126,758 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,548 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,632 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,306 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,309 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,031 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,198 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,164 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,923 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,476 |
| Capitals of the Stans | 0 | - | 4.95 | 26,880 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,723 |
| Countries with Megacities | 0 | - | 4.99 | 264,149 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,568 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,384 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,830 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,442 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,968 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,087 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,706 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,006 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,593 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,729 |
| Random European Capital to Country | 0 | - | 4.98 | 191,062 |
| Random European Country to Capital | 0 | - | 4.93 | 165,278 |
| Random African Capital to Country | 0 | - | 4.97 | 100,800 |
| Random African Country to Capital | 0 | - | 4.94 | 71,323 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,973 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,826 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,032 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,019 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,493 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,643 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,160 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,158 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,857 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,564 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,583 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,423 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,005 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,674 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,303 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,127 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,016 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,195 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,721 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,789 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,788 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,862 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,505 |
| Name a City - European Countries | 0 | - | 4.90 | 65,497 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,745 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,839 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,071 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,025 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,039 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,770 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,889 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,278 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,665 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,591 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,025 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,260 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,429 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,941 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,900 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,775 |
| Largest City by Island | 0 | - | 4.87 | 71,976 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,082 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,091 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,659 |
| Megacities on a World Map | 0 | - | 4.98 | 255,001 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,883 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,442 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,077 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,952 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,154 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,604 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,681 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,562 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,115 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,415 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,259 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,845 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,294 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,601 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,342 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,840 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,260 |
| Europe Capital to Country | 0 | - | 4.99 | 250,608 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,045 |
| European Capitals by Map | 0 | - | 4.99 | 139,619 |
| African Capitals by Map | 0 | - | 4.99 | 134,042 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,193 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,534 |
| European Coastal Capitals | 0 | - | 4.95 | 90,711 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,418 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,279 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,879 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,081 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,245 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,930 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,666 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,605 |
| Most Populous Islands | 0 | - | 4.80 | 122,983 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,315 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,551 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,855 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,858 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,411 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,266 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,061 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,484 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,409 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,265 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,568 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,110 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,846 |
| Official Cities in the UK | 0 | - | 4.89 | 284,188 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,593 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,994 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,237 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,574 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,127 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,421 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,194 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,238 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 16,010 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,695 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,351 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,112 |
| Boundary Waters | 0 | - | 4.92 | 88,517 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,216 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,191 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,594 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,536 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,498 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,517 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,961 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,584 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,600 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,557 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,272 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 148,684 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,044 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,903 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,187 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,551 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,235 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,763 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,468 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,044 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,776 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,663 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,544 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,021 |
| Biggest City by Region | 0 | - | 4.50 | 36,256 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,172 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,212 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,366 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,327 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,437 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,927 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,529,924 |
| Landlocked Countries | 0 | - | 4.99 | 421,312 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 574,927 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,552 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,173 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,836 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,446 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,436 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,556 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,949 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,274 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,391 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,171 |
| Biggest Cities in China | 0 | - | 4.53 | 158,852 |
| Biggest Cities in India | 0 | - | 4.64 | 67,799 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,691,401 |
| World Capitals Quiz | 0 | - | 5.00 | 5,079,363 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,727 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,615 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,560 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,427 |
| Vietnam War Countries | 0 | - | 4.82 | 94,298 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,708 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,884 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,773,747 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,345 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,834 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,889 |
