| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,319 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,643 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,769 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,672 |
| African Capitals by Map | 0 | - | 4.99 | 133,781 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,946 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,876 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,842 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,824 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,427 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,174 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,225 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,601 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,315 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,447 |
| Countries with Megacities | 0 | - | 4.99 | 263,342 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,285 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,236 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,580 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,276 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,758 |
| Nigeria Country Quiz | 0 | - | 4.75 | 46,971 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,844 |
| Liberia Country Quiz | 0 | - | 4.85 | 21,898 |
| Mali Country Quiz | 0 | - | 4.83 | 24,803 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,893 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,716 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,789 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,900 |
| 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 | 191,605 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,573 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,079 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,939 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,540 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,041 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,333 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,831 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,807 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,510 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,606 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,890 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,591 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,038 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,477 |
| 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 | 130,323 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,330 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,145 |
| Name a City - European Countries | 0 | - | 4.90 | 65,378 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,827 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,829 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,827 |
| Countries of Africa | 0 | - | 5.00 | 2,536,958 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,879 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,885 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,615 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,857 |
| 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 | 130,441 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,884 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,150 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,313 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,885 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,529 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,393 |
| Largest City by Island | 0 | - | 4.87 | 71,865 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,981 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,944 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,501 |
| Megacities on a World Map | 0 | - | 4.98 | 254,506 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,144 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,342 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,921 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,642 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,360 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,984 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,271 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,195 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,743 |
| 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 | 97,241 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,088 |
| Europe Capital to Country | 0 | - | 4.99 | 250,142 |
| Asia Capital to Country | 0 | - | 4.96 | 126,660 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,867 |
| European Capitals by Map | 0 | - | 4.99 | 139,146 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,387 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,063 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,412 |
| European Coastal Capitals | 0 | - | 4.95 | 90,590 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,585 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,980 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,993 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,826 |
| African Island Countries | 0 | - | 4.96 | 101,633 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,958 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,120 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,506 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,979 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,576 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,232 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,260 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,970 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,292 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,266 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,936 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,226 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,975 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,070 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,621 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,406 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,968 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,737 |
| Official Cities in the UK | 0 | - | 4.89 | 283,708 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,395 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,782 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,470 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,031 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,260 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,828 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,170 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,363 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,284 |
| The Only African Country ... | 0 | - | 4.99 | 129,098 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,124 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,779 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,201 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,861 |
| Most Populous Islands | 0 | - | 4.80 | 122,924 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,302 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,532 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,815 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,847 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,218 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,412 |
| Capitals of the Stans | 0 | - | 4.95 | 26,840 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,429 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,906 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,526 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,342 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,789 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,331 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,142 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,653 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,828 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,790 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,093 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,369 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,151 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,602 |
| Name a Valid African Country | 0 | - | 4.98 | 154,071 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,068 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,484 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,794 |
| D.R. Congo Country Quiz | 0 | - | 4.87 | 39,358 |
| Boundary Waters | 0 | - | 4.92 | 88,463 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,161 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,084 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,438 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,459 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,679 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,135 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,567 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,086 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,980 |
| Biggest City by Region | 0 | - | 4.50 | 36,221 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,138 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,291 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,285 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,407 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,184 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,254 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,042 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,791 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,834 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,230 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,414 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,678 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,469 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,520 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,657 |
| Random European Capital to Country | 0 | - | 4.98 | 190,901 |
| Random European Country to Capital | 0 | - | 4.93 | 165,118 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,450 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,754 |
| Random African Capital to Country | 0 | - | 4.97 | 100,714 |
| Random African Country to Capital | 0 | - | 4.94 | 71,202 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,157 |
| Which City in Africa? | 0 | - | 4.77 | 57,827 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,453,240 |
| Landlocked Countries | 0 | - | 4.99 | 420,441 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,272 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,157 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,527 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,868 |
