| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,671 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,666 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,690 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,795 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,890 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,758 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,309 |
| Random African Capital to Country | 0 | - | 4.97 | 99,667 |
| Random African Country to Capital | 0 | - | 4.94 | 70,148 |
| African Capitals by Map | 0 | - | 4.99 | 132,037 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,455 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,972 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,207 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,525 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,851 |
| Countries with Megacities | 0 | - | 4.99 | 246,146 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,769 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,727 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,236 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,663 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,401 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,995 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,118 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,945 |
| Random European Capital to Country | 0 | - | 4.98 | 189,043 |
| Random European Country to Capital | 0 | - | 4.92 | 147,328 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,262 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,324 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,025 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,715 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,665 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,742 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,391 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,479 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,142 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,434 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,387 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,458 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,630 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,556 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,305 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,371 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,192 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,384 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,930 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,043 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,625 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,544 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,230 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,923 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,448 |
| Name a City - European Countries | 0 | - | 4.92 | 64,260 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,759 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,217 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 171,973 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,203 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,027 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,626 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,067 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,081 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,148 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,744 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,278 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,462 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,218 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,186 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,669 |
| Largest City by Island | 0 | - | 4.87 | 70,932 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,194 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,383 |
| Biggest European Cities by Century | 0 | - | 4.98 | 130,052 |
| Megacities on a World Map | 0 | - | 4.98 | 250,141 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,526 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,709 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,734 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,455 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,641 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,974 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,286 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,136 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,498 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,476 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,709 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,087 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,236 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,637 |
| Europe Capital to Country | 0 | - | 4.99 | 247,265 |
| Asia Capital to Country | 0 | - | 4.96 | 125,607 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,270 |
| European Capitals by Map | 0 | - | 4.99 | 135,902 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,952 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,062 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,519 |
| European Coastal Capitals | 0 | - | 4.95 | 89,628 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,141 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,335 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,511 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,985 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,952 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,563 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 63,922 |
| Most Populous Islands | 0 | - | 4.78 | 121,901 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,188 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,387 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,585 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,698 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,247 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,796 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,045 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,849 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,683 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,067 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,501 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,563 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,318 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,456 |
| Official Cities in the UK | 0 | - | 4.89 | 280,103 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,703 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,743 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,463 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,324 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,001 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,070 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,639 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,361 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,695 |
| Capitals of the Stans | 0 | - | 4.95 | 26,362 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,166 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,122 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,755 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,643 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,865 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,470 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,033 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,251 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,440 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,643 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,077 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,627 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,038 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,569 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,291 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,665 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,603 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,504 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,772 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 239,922 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,282 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,367 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,828 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,880 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,641 |
| Biggest City by Region | 0 | - | 4.50 | 35,964 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,862 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,200 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,879 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,230 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,847,817 |
| Landlocked Countries | 0 | - | 4.99 | 412,842 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,518 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,071 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,746 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,500 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,121 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,358 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,122 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,598 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,611 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,295 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,435 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,675,975 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,212 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,291 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,148 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,621 |
| Every African Country Shape | 0 | - | 4.90 | 85,844 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,379 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,123 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,265 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,701 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,102 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,895 |
| Population Trivia | 0 | - | 4.32 | 27,409 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,266 |
| Biggest Cities in History | 0 | - | 4.52 | 89,035 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,044 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,601 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,002 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,152 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,735 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,142 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,948 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,929 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,371 |
