| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,428 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,885 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,321 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,775 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,854 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,450 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,754 |
| Asia Capital to Country | 0 | - | 4.96 | 126,660 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,394 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,586 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,948 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,174 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,988 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,076 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,829 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,364 |
| Capitals of the Stans | 0 | - | 4.95 | 26,841 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,240 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,794 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,637 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,325 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,452 |
| Countries with Megacities | 0 | - | 4.99 | 263,362 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,291 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,239 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,586 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,279 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,781 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,412 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,659 |
| Random European Capital to Country | 0 | - | 4.98 | 190,904 |
| Random European Country to Capital | 0 | - | 4.93 | 165,121 |
| Random African Capital to Country | 0 | - | 4.97 | 100,714 |
| Random African Country to Capital | 0 | - | 4.94 | 71,203 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,270 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,893 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,720 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,795 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,902 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,390 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,535 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,607 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,582 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,081 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,942 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,547 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,050 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,339 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,838 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,809 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,516 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,614 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,895 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,622 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,044 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,483 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,625 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,335 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,353 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,153 |
| Name a City - European Countries | 0 | - | 4.90 | 65,382 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,666 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,999 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,989 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,064 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,552 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,885 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,619 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,858 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,252 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,604 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,443 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,888 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,153 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,313 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,886 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,536 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,396 |
| Largest City by Island | 0 | - | 4.87 | 71,866 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,985 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,947 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,505 |
| Megacities on a World Map | 0 | - | 4.98 | 254,515 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,162 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,344 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,922 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,650 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,567 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,363 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,988 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,276 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,196 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,745 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,249 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,539 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,244 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,676 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,093 |
| Europe Capital to Country | 0 | - | 4.99 | 250,180 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,872 |
| European Capitals by Map | 0 | - | 4.99 | 139,151 |
| African Capitals by Map | 0 | - | 4.99 | 133,785 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,067 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,416 |
| European Coastal Capitals | 0 | - | 4.95 | 90,596 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,993 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,004 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,829 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,960 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,122 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,267 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,940 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,233 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,643 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,408 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,974 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,740 |
| Official Cities in the UK | 0 | - | 4.89 | 283,720 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,408 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,788 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,475 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,036 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,263 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,173 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,287 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,819 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,779 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,857 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,527 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,005 |
| Most Populous Islands | 0 | - | 4.80 | 122,926 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,302 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,533 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,815 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,848 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,219 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,412 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,493 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,176 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,993 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,644 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,433 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,906 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,528 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,350 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,337 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,145 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,662 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,831 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,790 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,095 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,908 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,376 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,154 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,644 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,049 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,451 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,117 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,011 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,964 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,440 |
| Top 10 Richest Countries in Asia | 0 | - | 4.74 | 105,684 |
| Boundary Waters | 0 | - | 4.92 | 88,464 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,162 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,085 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,441 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,460 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,681 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,135 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,569 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,086 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,982 |
| Biggest City by Region | 0 | - | 4.50 | 36,223 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,138 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,299 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,286 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,185 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,257 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,111 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,793 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,837 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,235 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,414 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,089 |
| Biggest Cities in China | 0 | - | 4.53 | 158,587 |
| Biggest Cities in India | 0 | - | 4.64 | 67,745 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,706 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,685 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,470 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,521 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,162 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,454,974 |
| Landlocked Countries | 0 | - | 4.99 | 420,461 |
| Vietnam War Countries | 0 | - | 4.82 | 94,223 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,665 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,738 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,988 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,273 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,729 |
