| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,005 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,997 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,830 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,933 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,089 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,233 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,394 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,584 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,066 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,296 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,278 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,614 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,572 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,815 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,221 |
| Asia Capital to Country | 0 | - | 4.96 | 125,763 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,139 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,190 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,970 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,862 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,045 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,345 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,567 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,597 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,185 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,455 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,598 |
| Capitals of the Stans | 0 | - | 4.95 | 26,410 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,627 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,988 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,956 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,294 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,403 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,422 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,282 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,684 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,093 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,644 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,408 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,457 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,428 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,803 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,636 |
| Hindu Countries | 0 | - | 4.86 | 49,581 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,733 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,218 |
| Countries with Megacities | 0 | - | 4.99 | 246,918 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,119 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,972 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,539 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,857 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,642 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,703 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,799 |
| Biggest Cities in India | 0 | - | 4.70 | 67,335 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,308 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,813 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,357 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,602 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,119 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,842 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,936 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,890 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,487 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,607 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,269 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,653 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,691 |
| Biggest Cities in History | 0 | - | 4.52 | 89,130 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,120 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,941 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,864 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,053 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,492 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,528 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,291 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,584 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,058 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,167 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,752 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,687 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,535 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,199 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,283 |
| Cities in European History #1 | 0 | - | 4.63 | 133,130 |
| Name a City - European Countries | 0 | - | 4.92 | 64,399 |
| India State Capitals Quiz | 0 | - | 4.27 | 59,370 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,624 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,727 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,405 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,145 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,146 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,342 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,939 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,404 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,595 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,301 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,482 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,859 |
| Largest City by Island | 0 | - | 4.87 | 71,049 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,554 |
| Megacities on a World Map | 0 | - | 4.98 | 250,977 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,799 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,869 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,059 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,511 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,774 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,298 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,157 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,480 |
| Official Cities in the UK | 0 | - | 4.89 | 280,551 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,364 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,822 |
| Former Capitals | 0 | - | 4.88 | 71,146 |
| Europe Capital to Country | 0 | - | 4.99 | 247,911 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,463 |
| European Capitals by Map | 0 | - | 4.99 | 136,290 |
| African Capitals by Map | 0 | - | 4.99 | 132,188 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,277 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,887 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,671 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,411 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,127 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,194 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,618 |
| European Coastal Capitals | 0 | - | 4.95 | 89,762 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,818 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,812 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,424 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,707 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,765 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,862 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,453 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,121 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,107 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,796 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,655 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,725 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,955 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,090 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,937 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,539 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,119 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,482 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,801 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,205 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,950 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,393 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,763 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,800 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,402 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,032 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,782 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,817 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,847 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,242 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,669 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,888 |
| Vietnam War Countries | 0 | - | 4.83 | 93,616 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,255 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,734 |
| Most Populous Islands | 0 | - | 4.79 | 121,994 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,202 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,407 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,794 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,611 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,849 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,650 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,284 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,453 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,252 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,736 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,793 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,830 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,506 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,539 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,525 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,283 |
| Biggest Cities in China | 0 | - | 4.53 | 157,026 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,343 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,819 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,725 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,279 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,964 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 44,287 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,093 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,456 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,199 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,075 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,273 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,821 |
| Random European Capital to Country | 0 | - | 4.98 | 189,219 |
| Random European Country to Capital | 0 | - | 4.92 | 147,458 |
| Random African Capital to Country | 0 | - | 4.97 | 99,741 |
| Random African Country to Capital | 0 | - | 4.94 | 70,236 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,544 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,891 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,794 |
| Which City in Europe? | 0 | - | 4.83 | 106,625 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,316 |
