| Biggest Cities in the World | 0 | - | 4.91 | 793,324 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,364 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,077 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,268 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,036 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,329 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,440 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,932 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,864 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,010 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,366 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,446 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,971 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,013 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,146 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,073 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,874 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,629 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,192 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,449 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,328 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,012 |
| Largest City by Island | 0 | - | 4.87 | 71,340 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,558 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,881 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,861 |
| Megacities on a World Map | 0 | - | 4.98 | 252,078 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,994 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,285 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,413 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,609 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,356 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,033 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,100 |
| Countries with Megacities | 0 | - | 4.99 | 248,596 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,974 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,453 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,348 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,407 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,352 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,026 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,694 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,237 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,815 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,521 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,964 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,606 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,149 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,971 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,815 |
| Biggest City by Region | 0 | - | 4.50 | 36,052 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,982 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,668 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,252 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,100 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,039 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,089 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,272 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,047 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,272 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,309 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,226 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,749 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,242 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,031 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,031 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,580 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,719 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,152 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,378 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,635 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,732 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,697 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,963 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,161 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,966 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,783 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,712 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,926 |
| Biggest Cities in History | 0 | - | 4.52 | 89,320 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,199 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,998 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,712 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,503 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,266 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,373 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,286 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,784 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,211 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,881 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,199 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,734 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,261 |
| Boundary Waters | 0 | - | 4.92 | 88,179 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,927 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,570 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,703 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,056 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,024 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,696 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,301 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,764 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,281 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,676 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,850 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,565 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,764 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,969 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,124 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,139 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,885 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,611 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,486 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,852 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,734 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,980 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,474 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,448 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,490 |
| Most Populous Islands | 0 | - | 4.79 | 122,158 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,228 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,442 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,679 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,985 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,111 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,218 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,812 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,139 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,245 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,961 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,652 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,374 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,026 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,653 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,272 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,870 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,135 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,953 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,799 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,041 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,721 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,479 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,598 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,495 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,364 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,281 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,980 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,720 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,381 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,850 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,110,431 |
| Landlocked Countries | 0 | - | 4.99 | 415,969 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,469 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,561 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,998 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,017 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,150 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,317 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,262 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,287 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,125 |
| Population Trivia | 0 | - | 4.32 | 27,448 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,127 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,738 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,922 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,934 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,463 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,580 |
| Himalayan Countries | 0 | - | 4.95 | 136,209 |
| Andean Countries | 0 | - | 4.95 | 83,298 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,590 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,800 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,291 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,913 |
| Danube Countries | 0 | - | 4.97 | 71,329 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,099 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,782 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,002 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,960 |
| European Landlocked Countries | 0 | - | 4.99 | 146,039 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,649 |
| Countries with the Most Species | 0 | - | 4.99 | 96,366 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,786 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,293 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,471 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,108 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,755 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,128 |
| Countries in the Alps | 0 | - | 4.86 | 117,241 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,829 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,738 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,205 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,655 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,496 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,199 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,893 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,946 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,741 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,275 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,318 |
