| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,923 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,773 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,766 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,724 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,804 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,054 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,300 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,341 |
| Asia Capital to Country | 0 | - | 4.96 | 125,655 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,003 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,155 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,501 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,864 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,148 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,521 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,094 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,390 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,257 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,487 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,928 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,356 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,923 |
| Countries with Megacities | 0 | - | 4.99 | 246,336 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,847 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,762 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,298 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,704 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,588 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,177 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,965 |
| Random European Capital to Country | 0 | - | 4.98 | 189,092 |
| Random European Country to Capital | 0 | - | 4.92 | 147,363 |
| Random African Capital to Country | 0 | - | 4.97 | 99,684 |
| Random African Country to Capital | 0 | - | 4.94 | 70,164 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,614 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,050 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,751 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,759 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,787 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,419 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,519 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,294 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,127 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,177 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,545 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,523 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,648 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,749 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,751 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,390 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,442 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,359 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,474 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,981 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,088 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,674 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,606 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,399 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,547 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,573 |
| Name a City - European Countries | 0 | - | 4.92 | 64,294 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,599 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,781 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,585 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,016 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,578 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,094 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,637 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,073 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,095 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,197 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,792 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,317 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,492 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,239 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,279 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,738 |
| Largest City by Island | 0 | - | 4.87 | 70,976 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,314 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,443 |
| Biggest European Cities by Century | 0 | - | 4.98 | 140,336 |
| Megacities on a World Map | 0 | - | 4.98 | 250,633 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,807 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,735 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,788 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,555 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,263 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,061 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,352 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,197 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,197 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,541 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,505 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,739 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,135 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,271 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,687 |
| Europe Capital to Country | 0 | - | 4.99 | 247,356 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,335 |
| European Capitals by Map | 0 | - | 4.99 | 136,026 |
| African Capitals by Map | 0 | - | 4.99 | 132,088 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,091 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,542 |
| European Coastal Capitals | 0 | - | 4.95 | 89,676 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,478 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,610 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,388 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,029 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,000 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,297 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,085 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,887 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,738 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,392 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,241 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,505 |
| Official Cities in the UK | 0 | - | 4.89 | 280,269 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,934 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,614 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,574 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,351 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,042 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,656 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,721 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,615 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,210 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,978 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,255 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,949 |
| Most Populous Islands | 0 | - | 4.78 | 121,926 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,193 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,398 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,592 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,711 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,814 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,875 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,024 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,798 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,194 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,887 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,498 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,060 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,324 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,703 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,115 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,735 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,154 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,628 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,323 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,778 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,722 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,623 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,570 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,102 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,177 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,185 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,053 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,461 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,152 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 104,733 |
| Boundary Waters | 0 | - | 4.92 | 88,009 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,791 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,201 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,170 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,785 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,382 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,765 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,851 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,887 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,659 |
| Biggest City by Region | 0 | - | 4.50 | 35,979 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,880 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,174 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,386 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,998 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,210 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,895 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,640 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,679 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,365 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,472 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,240 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,477 |
| Biggest Cities in China | 0 | - | 4.53 | 156,872 |
| Biggest Cities in India | 0 | - | 4.70 | 67,290 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,534 |
| India State Capitals Quiz | 0 | - | 4.27 | 59,353 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,345 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,161 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,677 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,870,613 |
| Landlocked Countries | 0 | - | 4.99 | 413,075 |
| Vietnam War Countries | 0 | - | 4.83 | 93,548 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,212 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,515 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,055 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,138 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,069 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,340 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,759 |
