| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,257 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,569 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,890 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,422 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 105,075 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,965 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,940 |
| Random African Capital to Country | 0 | - | 4.97 | 101,464 |
| Random African Country to Capital | 0 | - | 4.94 | 71,878 |
| African Capitals by Map | 0 | - | 4.99 | 142,555 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,143 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,178 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,493 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,590 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,354 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,469 |
| Countries with Megacities | 0 | - | 4.99 | 267,780 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,117 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,322 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,451 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,422 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,857 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,932 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,863 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,161 |
| Random European Capital to Country | 0 | - | 4.98 | 192,329 |
| Random European Country to Capital | 0 | - | 4.93 | 166,068 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,084 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,549 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,563 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,451 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,500 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,801 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,990 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,352 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,711 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,075 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,164 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,940 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,781 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,638 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,532 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,936 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,369 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,097 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,083 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,707 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,828 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,295 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,544 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,706 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,923 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,468 |
| Name a City - European Countries | 0 | - | 4.89 | 66,363 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,847 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,799 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,574 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,314 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,590 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,056 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,413 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,967 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,540 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,836 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,879 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,026 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,249 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,765 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,832 |
| Largest City by Island | 0 | - | 4.87 | 72,557 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,482 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,844 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,235 |
| Megacities on a World Map | 0 | - | 4.98 | 257,397 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,754 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,829 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,824 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,745 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,345 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,418 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,833 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,003 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,001 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,601 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,275 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,570 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,918 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,857 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,658 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,317 |
| Europe Capital to Country | 0 | - | 4.99 | 252,524 |
| Asia Capital to Country | 0 | - | 4.96 | 127,680 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,246 |
| European Capitals by Map | 0 | - | 4.99 | 142,466 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,100 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,095 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,363 |
| European Coastal Capitals | 0 | - | 4.95 | 91,473 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,261 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,219 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,162 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,234 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,791 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,110 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,457 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 65,104 |
| Most Populous Islands | 0 | - | 4.80 | 123,426 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,400 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,672 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,017 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,964 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,094 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,541 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,689 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,885 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,112 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,335 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,479 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,299 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,346 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,350 |
| Official Cities in the UK | 0 | - | 4.89 | 286,808 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,239 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,553 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,610 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,710 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,293 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,478 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,652 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,054 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,807 |
| Capitals of the Stans | 0 | - | 4.95 | 27,222 |
| Boundary Waters | 0 | - | 4.92 | 88,829 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,459 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,820 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,536 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,053 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,074 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,859 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,363 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,025 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,053 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,903 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,698 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,101 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,747 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,236 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,378 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,771 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,931 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,677 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,541 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,194 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,944 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,466 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,223 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,193 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,676 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,179 |
| Biggest City by Region | 0 | - | 4.50 | 36,416 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,367 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,326 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,458 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,604 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,598 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,960,158 |
| Landlocked Countries | 0 | - | 4.99 | 427,144 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,593 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,807 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,364 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,710 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,207 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,165 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,513 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,942 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,597 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,416 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,032 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,287 |
| World Capitals Quiz | 0 | - | 5.00 | 5,112,929 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,575 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,928 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,479 |
| Every African Country Shape | 0 | - | 4.90 | 88,588 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,587 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,121 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,699 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,566 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,984 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,504 |
| Population Trivia | 0 | - | 4.32 | 27,589 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,012 |
| Biggest Cities in History | 0 | - | 4.52 | 90,683 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,183 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,599 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,775 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,639 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,572 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,730 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,726 |
