| Biggest Cities in the World | 0 | - | 4.92 | 790,141 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,096 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,621 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,622 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,830 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,822 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,960 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,464 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,498 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,554 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,037 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,147 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,725 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,657 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,497 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,531 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,319 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,717 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,583 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,931 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,403 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,821 |
| Largest City by Island | 0 | - | 4.87 | 71,019 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,373 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,518 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,839 |
| Megacities on a World Map | 0 | - | 4.98 | 250,881 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,782 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,848 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,684 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,123 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,639 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,121 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,072 |
| Countries with Megacities | 0 | - | 4.99 | 246,678 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,002 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,857 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,428 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,786 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,992 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,287 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,559 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,959 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,482 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,282 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,720 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,536 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,896 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,897 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,688 |
| Biggest City by Region | 0 | - | 4.50 | 35,993 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,893 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,526 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,110 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,426 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,551 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,012 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,217 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,914 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,767 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,250 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,802 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,867 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,849 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,458 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,566 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,230 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,652 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,084 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,071 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,238 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,433 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,259 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,703 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,749 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,463 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,514 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,367 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,857 |
| Biggest Cities in History | 0 | - | 4.52 | 89,111 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,113 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,974 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,663 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,462 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,181 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,206 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,188 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,482 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,948 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,579 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,893 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,137 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,974 |
| Boundary Waters | 0 | - | 4.92 | 88,029 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,805 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,254 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,257 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,825 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,993 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,183 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,126 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,291 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,889 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,372 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,558 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,278 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,643 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,190 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,809 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,210 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,433 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,261 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,243 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,589 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,549 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,786 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,196 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,090 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,067 |
| Most Populous Islands | 0 | - | 4.79 | 121,968 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,199 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,401 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,606 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,840 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,916 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,101 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,745 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,023 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,895 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,278 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,273 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,937 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,999 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,041 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,839 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,742 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,580 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,618 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,749 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,424 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,891 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,954 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,816 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,967 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,817 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,366 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,127 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,575 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,903,635 |
| Landlocked Countries | 0 | - | 4.99 | 413,418 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,301 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,470 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,634 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,767 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,329 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,149 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,981 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,117 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,433 |
| Population Trivia | 0 | - | 4.32 | 27,421 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,943 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,583 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,633 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,878 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,212 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,500 |
| Himalayan Countries | 0 | - | 4.95 | 135,281 |
| Andean Countries | 0 | - | 4.94 | 82,791 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,193 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,142 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,859 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,567 |
| Danube Countries | 0 | - | 4.97 | 71,062 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,730 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,517 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,426 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,350 |
| European Landlocked Countries | 0 | - | 4.99 | 145,731 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,171 |
| Countries with the Most Species | 0 | - | 4.99 | 95,234 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,311 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,193 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,359 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,948 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,561 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,936 |
| Countries in the Alps | 0 | - | 4.86 | 116,787 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,536 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,222 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,991 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,404 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,131 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,977 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,551 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,736 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,186 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,035 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,189 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,031 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,431 |
