| Biggest Cities in the World | 0 | - | 4.91 | 798,289 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,870 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,866 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,428 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,881 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,265 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,660 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,755 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,457 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,806 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,172 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,993 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,345 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,582 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,223 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,460 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,870 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,039 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,895 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,099 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,477 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,319 |
| Largest City by Island | 0 | - | 4.87 | 71,826 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,918 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,893 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,423 |
| Megacities on a World Map | 0 | - | 4.98 | 254,380 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,317 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,880 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,559 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,292 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,960 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,888 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,367 |
| Countries with Megacities | 0 | - | 4.99 | 262,958 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,197 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,180 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,501 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,218 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,126 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,892 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,022 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,376 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,353 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,930 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,111 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,186 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,535 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,076 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,965 |
| Biggest City by Region | 0 | - | 4.50 | 36,206 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,128 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,889 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,505 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,239 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,713 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,178 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,345 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,233 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,248 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,405 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,676 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,692 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,845 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,365 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,502 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,049 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,843 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,246 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,164 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,223 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,217 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,342 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,355 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,743 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,755 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,172 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,543 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,033 |
| Biggest Cities in History | 0 | - | 4.52 | 90,111 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,253 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,054 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,811 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,547 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,395 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,596 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,447 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,313 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,606 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,377 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,948 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,347 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,069 |
| Boundary Waters | 0 | - | 4.92 | 88,452 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,138 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,044 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,397 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,444 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,658 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,565 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,588 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,395 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,851 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,109 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,283 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,878 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,048 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,976 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,661 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,346 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,927 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,232 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,716 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,237 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,523 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,204 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,912 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,075 |
| Most Populous Islands | 0 | - | 4.80 | 122,898 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,296 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,528 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,804 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,205 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,393 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,461 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,931 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,288 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,909 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,900 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 46,026 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,542 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,186 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,636 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,529 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,921 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,709 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,289 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,099 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,543 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,215 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,641 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,797 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,777 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,261 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,786 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,412 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,220 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,893 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,707 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,427,645 |
| Landlocked Countries | 0 | - | 4.99 | 420,059 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,736 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,730 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,542 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,356 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,974 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,574 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,784 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,489 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,645 |
| Population Trivia | 0 | - | 4.32 | 27,488 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,404 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,234 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,410 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,005 |
| World Capitals Quiz | 0 | - | 5.00 | 5,071,239 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,500 |
| Himalayan Countries | 0 | - | 4.95 | 137,916 |
| Andean Countries | 0 | - | 4.95 | 84,175 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,389 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,986 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,040 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,489 |
| Danube Countries | 0 | - | 4.97 | 71,777 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,719 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,175 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,876 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,995 |
| European Landlocked Countries | 0 | - | 4.99 | 146,912 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,305 |
| Countries with the Most Species | 0 | - | 4.99 | 103,048 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,455 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,470 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,639 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,407 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,087 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,475 |
| Countries in the Alps | 0 | - | 4.87 | 117,897 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 97,898 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,618 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,513 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,398 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,244 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,807 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,412 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,293 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,044 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,661 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,549 |
