| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,951 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,803 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,844 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,786 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,929 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,506 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,340 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,367 |
| Asia Capital to Country | 0 | - | 4.96 | 125,699 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,064 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,169 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,549 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,904 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,236 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,542 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,137 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,412 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,470 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,526 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,459 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,467 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,995 |
| Countries with Megacities | 0 | - | 4.99 | 246,517 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,913 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,797 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,368 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,754 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,957 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,223 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,991 |
| Random European Capital to Country | 0 | - | 4.98 | 189,142 |
| Random European Country to Capital | 0 | - | 4.92 | 147,394 |
| Random African Capital to Country | 0 | - | 4.97 | 99,708 |
| Random African Country to Capital | 0 | - | 4.94 | 70,196 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,639 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,077 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,778 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,825 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,823 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,441 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,542 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,345 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,280 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,206 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,595 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,585 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,771 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,799 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,904 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,438 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,481 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,471 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,525 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,021 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,129 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,707 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,635 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,470 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,094 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,682 |
| Name a City - European Countries | 0 | - | 4.92 | 64,338 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,913 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,789 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,602 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,034 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,590 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,142 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,649 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,081 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,112 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,260 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,856 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,357 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,537 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,255 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,355 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,798 |
| Largest City by Island | 0 | - | 4.87 | 71,007 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,354 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,492 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,270 |
| Megacities on a World Map | 0 | - | 4.98 | 250,822 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,020 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,766 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,826 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,631 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,271 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,100 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,401 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,237 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,219 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,562 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,529 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,765 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,160 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,312 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,748 |
| Europe Capital to Country | 0 | - | 4.99 | 247,441 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,394 |
| European Capitals by Map | 0 | - | 4.99 | 136,133 |
| African Capitals by Map | 0 | - | 4.99 | 132,108 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,141 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,575 |
| European Coastal Capitals | 0 | - | 4.95 | 89,710 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,628 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,676 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,405 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,071 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,038 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,338 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,115 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,960 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,873 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,460 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,269 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,554 |
| Official Cities in the UK | 0 | - | 4.89 | 280,403 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,066 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,748 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,622 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,374 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,074 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,679 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,740 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,691 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,229 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,011 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,311 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,986 |
| Most Populous Islands | 0 | - | 4.78 | 121,953 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,196 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,399 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,601 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,716 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,835 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,909 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,027 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,805 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,219 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,929 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,517 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,094 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,391 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,737 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,154 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,828 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,273 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,693 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,365 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,782 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,777 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,645 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,616 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,689 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,198 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,207 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,086 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,480 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,168 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 104,754 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,795 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,238 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,230 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,812 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,427 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,778 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,880 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,890 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,677 |
| Biggest City by Region | 0 | - | 4.50 | 35,989 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,890 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,216 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,421 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,008 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,215 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,902 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,679 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,717 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,431 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,492 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,246 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,500 |
| Biggest Cities in China | 0 | - | 4.53 | 156,926 |
| Biggest Cities in India | 0 | - | 4.70 | 67,314 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,087 |
| India State Capitals Quiz | 0 | - | 4.27 | 59,359 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,399 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,174 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,712 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,892,282 |
| Landlocked Countries | 0 | - | 4.99 | 413,290 |
| Vietnam War Countries | 0 | - | 4.83 | 93,580 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,243 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,634 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,072 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,151 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,103 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,412 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,812 |
