| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,419 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,811 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,046 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,558 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,152 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,008 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,476 |
| Random African Capital to Country | 0 | - | 4.97 | 101,549 |
| Random African Country to Capital | 0 | - | 4.94 | 71,930 |
| African Capitals by Map | 0 | - | 4.99 | 142,717 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,234 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,259 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,048 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,656 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,402 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,656 |
| Countries with Megacities | 0 | - | 4.99 | 268,179 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,296 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,411 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,639 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,524 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,838 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,205 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,541 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,186 |
| Random European Capital to Country | 0 | - | 4.98 | 192,421 |
| Random European Country to Capital | 0 | - | 4.93 | 166,131 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,151 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,630 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,616 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,510 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,624 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,891 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,275 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,426 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,764 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,162 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,291 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,023 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,009 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,765 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,805 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,017 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,439 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,393 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,158 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,754 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,895 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,353 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,614 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,870 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,860 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,674 |
| Name a City - European Countries | 0 | - | 4.89 | 66,459 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,457 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,883 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,847 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,363 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,731 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,072 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,427 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,002 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,652 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,925 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,941 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,107 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,293 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,839 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,936 |
| Largest City by Island | 0 | - | 4.87 | 72,611 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,532 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,934 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,300 |
| Megacities on a World Map | 0 | - | 4.98 | 257,652 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,535 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,881 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,886 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,910 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,394 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,480 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,927 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,118 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,070 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,647 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,321 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,593 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,956 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,913 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,748 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,432 |
| Europe Capital to Country | 0 | - | 4.99 | 252,728 |
| Asia Capital to Country | 0 | - | 4.96 | 127,748 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,381 |
| European Capitals by Map | 0 | - | 4.99 | 142,726 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,178 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,193 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,447 |
| European Coastal Capitals | 0 | - | 4.95 | 91,549 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,295 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,508 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,861 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,270 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,888 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,467 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,485 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 65,164 |
| Most Populous Islands | 0 | - | 4.80 | 123,477 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,412 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,690 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,038 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,970 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,162 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,560 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,761 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,951 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,391 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,443 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,505 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,607 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,413 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,417 |
| Official Cities in the UK | 0 | - | 4.89 | 287,068 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,304 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,896 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,835 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,762 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,396 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,534 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,706 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,107 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,856 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,337 |
| Capitals of the Stans | 0 | - | 4.95 | 27,263 |
| Boundary Waters | 0 | - | 4.92 | 88,872 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,493 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,903 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,641 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,105 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,124 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,896 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,387 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,051 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,218 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,995 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,793 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,173 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 152,054 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,385 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,544 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,874 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,099 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,731 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,617 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,258 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,232 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,538 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,290 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,237 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,691 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,189 |
| Biggest City by Region | 0 | - | 4.50 | 36,430 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,388 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,334 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,466 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,638 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,611 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,007,327 |
| Landlocked Countries | 0 | - | 4.99 | 427,713 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 593,251 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,836 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,384 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,988 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,293 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,244 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,615 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,073 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,668 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,533 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,086 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,701,242 |
| World Capitals Quiz | 0 | - | 5.00 | 5,117,104 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,657 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,962 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,582 |
| Every African Country Shape | 0 | - | 4.90 | 88,694 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,628 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,180 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,812 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,660 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,019 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,566 |
| Population Trivia | 0 | - | 4.32 | 27,601 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,106 |
| Biggest Cities in History | 0 | - | 4.52 | 90,740 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,260 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,631 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,907 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,660 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,651 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,751 |
