| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,733 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,826 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,905 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,767 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,738 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,481 |
| Random African Capital to Country | 0 | - | 4.97 | 99,677 |
| Random African Country to Capital | 0 | - | 4.94 | 70,158 |
| African Capitals by Map | 0 | - | 4.99 | 132,063 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,488 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,848 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,226 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,553 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,133 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,703 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,186 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,892 |
| Countries with Megacities | 0 | - | 4.99 | 246,259 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,811 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,748 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,270 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,685 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,375 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,956 |
| Random European Capital to Country | 0 | - | 4.98 | 189,075 |
| Random European Country to Capital | 0 | - | 4.92 | 147,340 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,283 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,333 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,131 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,039 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,738 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,722 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,767 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,409 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,500 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,268 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,073 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,166 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,500 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,450 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,564 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,706 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,660 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,350 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,410 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,275 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,428 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,953 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,070 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,648 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,584 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,327 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,246 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,515 |
| Name a City - European Countries | 0 | - | 4.92 | 64,279 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,949 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,216 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,568 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,074 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,631 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,070 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,181 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,772 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,305 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,479 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,232 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,239 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,709 |
| Largest City by Island | 0 | - | 4.87 | 70,956 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,259 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,412 |
| Biggest European Cities by Century | 0 | - | 4.98 | 136,925 |
| Megacities on a World Map | 0 | - | 4.98 | 250,440 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,699 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,725 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,765 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,510 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,026 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,322 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,175 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,190 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,522 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,494 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,729 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,117 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,253 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,665 |
| Europe Capital to Country | 0 | - | 4.99 | 247,315 |
| Asia Capital to Country | 0 | - | 4.96 | 125,636 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,314 |
| European Capitals by Map | 0 | - | 4.99 | 135,981 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,983 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,079 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,533 |
| European Coastal Capitals | 0 | - | 4.95 | 89,662 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,149 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,430 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,553 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,384 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,011 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,978 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,275 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,065 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,797 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,112 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,512 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,667 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,352 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,480 |
| Official Cities in the UK | 0 | - | 4.89 | 280,192 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,868 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,553 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,341 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,024 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,086 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,650 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,371 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,708 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,206 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,969 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,235 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,932 |
| Most Populous Islands | 0 | - | 4.78 | 121,914 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,191 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,394 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,588 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,704 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,806 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,863 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,721 |
| Capitals of the Stans | 0 | - | 4.95 | 26,371 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,876 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,489 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,044 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,300 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,463 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,672 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,094 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,687 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,101 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,599 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,309 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,705 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,613 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,538 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,792 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,016 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,301 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,178 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,039 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,455 |
| Boundary Waters | 0 | - | 4.92 | 87,994 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,188 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,148 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,773 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,373 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,760 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,846 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,881 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,649 |
| Biggest City by Region | 0 | - | 4.50 | 35,972 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,873 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,140 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,374 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,150 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,996 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,205 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,888 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,613 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,633 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,324 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,454 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,234 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,233 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,325 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,153 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,649 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,860,285 |
| Landlocked Countries | 0 | - | 4.99 | 412,966 |
| Every African Country Shape | 0 | - | 4.90 | 85,874 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,051 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,054 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,610 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,308 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,732 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,114 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,914 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,080 |
| Population Trivia | 0 | - | 4.32 | 27,412 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,282 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,629 |
| Biggest Cities in History | 0 | - | 4.52 | 89,054 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,068 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,616 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,053 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,158 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,751 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,155 |
