| Biggest Cities in the World | 0 | - | 4.91 | 806,601 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,539 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,052 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,117 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,912 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,711 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,606 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,409 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,903 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,348 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,055 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,695 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,809 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,277 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,516 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,623 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,014 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,580 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,372 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,107 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,142 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,729 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,794 |
| Largest City by Island | 0 | - | 4.87 | 72,534 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,473 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,801 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,218 |
| Megacities on a World Map | 0 | - | 4.98 | 257,311 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,820 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,796 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,684 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,793 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,262 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,596 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,410 |
| Countries with Megacities | 0 | - | 4.99 | 267,632 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,053 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,282 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,399 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,384 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,086 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,298 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,469 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,172 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,322 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,573 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,487 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,831 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,177 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,673 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,174 |
| Biggest City by Region | 0 | - | 4.50 | 36,412 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,362 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,351 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,014 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,980 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,858 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,322 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,456 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,594 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,652 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,593 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,426 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,444 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,780 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,969 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,325 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,690 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,045 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,406 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,576 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,182 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,148 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,472 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,889 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,568 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,369 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,008 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,981 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,194 |
| Biggest Cities in History | 0 | - | 4.52 | 90,667 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,151 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,147 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,932 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,634 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,946 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,724 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,208 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,215 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,035 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,648 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,176 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,821 |
| Boundary Waters | 0 | - | 4.92 | 88,820 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,441 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,787 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,478 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,033 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,474 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,551 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,953 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,503 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,795 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,850 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,001 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,238 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,580 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,721 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,544 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,530 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,816 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,955 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,974 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,589 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,259 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,559 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,910 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,833 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,774 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,061 |
| Most Populous Islands | 0 | - | 4.80 | 123,412 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,396 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,671 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,006 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,533 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,868 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,825 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,114 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,520 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,508 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,598 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,661 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,497 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,246 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,073 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,997 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,884 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,854 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,545 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,429 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,895 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,879 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,818 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,367 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,205 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 105,039 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,954 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,066 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,656 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,321 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,942,921 |
| Landlocked Countries | 0 | - | 4.99 | 426,914 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,191 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,016 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,434 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,891 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,297 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,972 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,478 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,794 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,200 |
| Population Trivia | 0 | - | 4.32 | 27,585 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,846 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,067 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,612 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,135 |
| World Capitals Quiz | 0 | - | 5.00 | 5,111,448 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,746 |
| Himalayan Countries | 0 | - | 4.93 | 140,668 |
| Andean Countries | 0 | - | 4.94 | 85,729 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,850 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,388 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,406 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,635 |
| Danube Countries | 0 | - | 4.97 | 72,514 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,737 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,939 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,363 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,821 |
| European Landlocked Countries | 0 | - | 4.99 | 147,704 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,475 |
| Countries with the Most Species | 0 | - | 4.99 | 103,625 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,578 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,802 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,935 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,900 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,103 |
| Countries in the Alps | 0 | - | 4.87 | 118,917 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,904 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,055 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,038 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,135 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,088 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,355 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,530 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,965 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,492 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,283 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,933 |
