| Biggest Cities in the World | 0 | - | 4.91 | 791,580 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,212 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,846 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,920 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,378 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,079 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,679 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,701 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,654 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,753 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,177 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,277 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,832 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,819 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,708 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,123 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,146 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,153 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,972 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,200 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,820 |
| Biggest Cities by Language | 0 | - | 4.96 | 240,335 |
| Largest City by Island | 0 | - | 4.87 | 71,149 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,457 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,681 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,420 |
| Megacities on a World Map | 0 | - | 4.98 | 251,355 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,888 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,980 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,014 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,314 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,021 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,903 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,664 |
| Countries with Megacities | 0 | - | 4.99 | 247,654 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,517 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,221 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,907 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,151 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,172 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,644 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,616 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,513 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,662 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,387 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,532 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,013 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,011 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,926 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,755 |
| Biggest City by Region | 0 | - | 4.50 | 36,021 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,929 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,583 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,167 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,702 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,742 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,052 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,244 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,958 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,962 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,276 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,040 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,305 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,054 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,570 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,837 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,424 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,687 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,118 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,620 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,416 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,546 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,455 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,817 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,930 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,669 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,616 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,525 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,882 |
| Biggest Cities in History | 0 | - | 4.52 | 89,207 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,160 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,986 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,685 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,480 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,225 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,272 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,221 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,615 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,063 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,703 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,010 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,294 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,089 |
| Boundary Waters | 0 | - | 4.92 | 88,088 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,855 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,399 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,460 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,921 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,388 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,419 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,210 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,512 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,091 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,514 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,710 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,359 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,699 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,494 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,936 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,611 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,635 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,432 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,371 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,722 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,648 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,906 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,332 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,252 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,266 |
| Most Populous Islands | 0 | - | 4.79 | 122,051 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,214 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,423 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,647 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,898 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,010 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,157 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,777 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,066 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,042 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,613 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,313 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,980 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,271 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,111 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,859 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,913 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,808 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,695 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,869 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,541 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,181 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,178 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,010 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,081 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,878 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,534 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,230 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,696 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,991,365 |
| Landlocked Countries | 0 | - | 4.99 | 414,474 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,378 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,507 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,796 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,869 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,539 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,226 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,097 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,184 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,198 |
| Population Trivia | 0 | - | 4.32 | 27,431 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,016 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,658 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,787 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,899 |
| World Capitals Quiz | 0 | - | 5.00 | 5,037,419 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,950 |
| Himalayan Countries | 0 | - | 4.95 | 135,655 |
| Andean Countries | 0 | - | 4.94 | 83,004 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,357 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,412 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,051 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,724 |
| Danube Countries | 0 | - | 4.97 | 71,162 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,885 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,626 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,676 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,578 |
| European Landlocked Countries | 0 | - | 4.99 | 145,871 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,346 |
| Countries with the Most Species | 0 | - | 4.99 | 95,296 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,500 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,231 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,401 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,009 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,649 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,016 |
| Countries in the Alps | 0 | - | 4.86 | 116,960 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,668 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,431 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,089 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,503 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,280 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,078 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,680 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,830 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,572 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,136 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,228 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,094 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,521 |
