| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,848 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,054 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,916 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,214 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,294 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,438 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,497 |
| Asia Capital to Country | 0 | - | 4.96 | 125,808 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,254 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,210 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,700 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,098 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,459 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,586 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,219 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,519 |
| Capitals of the Stans | 0 | - | 4.95 | 26,443 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,492 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,659 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,678 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,803 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,478 |
| Countries with Megacities | 0 | - | 4.99 | 247,311 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,312 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,109 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,738 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,038 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,867 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,366 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,120 |
| Random European Capital to Country | 0 | - | 4.98 | 189,313 |
| Random European Country to Capital | 0 | - | 4.92 | 147,535 |
| Random African Capital to Country | 0 | - | 4.97 | 99,756 |
| Random African Country to Capital | 0 | - | 4.94 | 70,275 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,733 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,152 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,902 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,066 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,960 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,525 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,677 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,474 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,607 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,348 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,699 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,756 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,073 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,931 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,179 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,543 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,563 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,820 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,647 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,087 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,208 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,781 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,738 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,593 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,296 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,958 |
| Name a City - European Countries | 0 | - | 4.92 | 64,487 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,630 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,809 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,666 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,081 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,623 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,316 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,674 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,100 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,178 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,408 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,018 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,460 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,650 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,340 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,582 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,904 |
| Largest City by Island | 0 | - | 4.87 | 71,083 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,416 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,599 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,055 |
| Megacities on a World Map | 0 | - | 4.98 | 251,119 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,521 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,827 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,910 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,867 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,292 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,218 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,550 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,364 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,335 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,671 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,609 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,866 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,276 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,404 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,916 |
| Europe Capital to Country | 0 | - | 4.99 | 248,051 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,560 |
| European Capitals by Map | 0 | - | 4.99 | 136,469 |
| African Capitals by Map | 0 | - | 4.99 | 132,255 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,272 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,683 |
| European Coastal Capitals | 0 | - | 4.95 | 89,831 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,004 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,980 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,444 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,179 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,189 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,460 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,181 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,092 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,221 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,561 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,327 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,648 |
| Official Cities in the UK | 0 | - | 4.89 | 280,735 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,497 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,034 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,702 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,459 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,176 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,749 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,809 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,887 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,274 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,076 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,459 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,100 |
| Most Populous Islands | 0 | - | 4.79 | 122,018 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,207 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,410 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,628 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,728 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,869 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,968 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,039 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,825 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,275 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,987 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,553 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,136 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,573 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,861 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,279 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,088 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,463 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,817 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,436 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,786 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,995 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,701 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,696 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,087 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,288 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,289 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,151 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,512 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,198 |
| Top 10 Richest Countries in Asia | 0 | - | 4.74 | 104,834 |
| Boundary Waters | 0 | - | 4.92 | 88,065 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,832 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,337 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,357 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,866 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 111,759 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,805 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,956 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,918 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,725 |
| Biggest City by Region | 0 | - | 4.50 | 36,006 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,914 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,334 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,499 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,027 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,229 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,935 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,777 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,843 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,567 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,568 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,264 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,552 |
| Biggest Cities in China | 0 | - | 4.53 | 157,106 |
| Biggest Cities in India | 0 | - | 4.70 | 67,357 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,678,301 |
| India State Capitals Quiz | 0 | - | 4.27 | 59,374 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,523 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,216 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,845 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,947,955 |
| Landlocked Countries | 0 | - | 4.99 | 413,912 |
| Vietnam War Countries | 0 | - | 4.83 | 93,650 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,310 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,749 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,130 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,199 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,202 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,530 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,909 |
