| Biggest Cities in the World | 0 | - | 4.91 | 797,682 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,824 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,742 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,284 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,652 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,143 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,385 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,647 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,378 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,710 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 56,578 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,923 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 63,997 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,521 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,102 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,964 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,045 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,837 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,813 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,031 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,310 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,225 |
| Largest City by Island | 0 | - | 4.87 | 71,782 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,871 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,812 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,359 |
| Megacities on a World Map | 0 | - | 4.98 | 254,019 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,289 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,833 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,436 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,216 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,621 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,588 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,234 |
| Countries with Megacities | 0 | - | 4.99 | 262,280 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,071 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,107 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,378 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,156 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,031 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,800 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,957 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,189 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,252 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,884 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,392 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,996 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,479 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,068 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,948 |
| Biggest City by Region | 0 | - | 4.50 | 36,167 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,095 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,859 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,480 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,117 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,641 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,170 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,339 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,214 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,149 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,391 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,631 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,585 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,775 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,332 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,454 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,008 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,824 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,239 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,942 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,145 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,163 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,257 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,320 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,690 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,660 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,127 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,478 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,026 |
| Biggest Cities in History | 0 | - | 4.52 | 90,080 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,915 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,047 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,786 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,544 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,380 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,570 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,432 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,221 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,540 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,305 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,621 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,242 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,984 |
| Boundary Waters | 0 | - | 4.92 | 88,423 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,121 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,001 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,313 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,405 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,486 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,491 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,547 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,329 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,801 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,072 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,236 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,854 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,017 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,857 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,607 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,212 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,856 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,176 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,140 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,639 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,212 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,488 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,163 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,865 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,018 |
| Most Populous Islands | 0 | - | 4.80 | 122,863 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,290 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,516 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,786 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,179 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,354 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,439 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,898 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,274 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,557 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,818 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,997 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,521 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,174 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,518 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,512 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,918 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,624 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,232 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,033 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,465 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,148 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,624 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,678 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,696 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,171 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,736 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,385 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,144 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,835 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,655 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,389,650 |
| Landlocked Countries | 0 | - | 4.99 | 419,652 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,703 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,715 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,479 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,322 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,894 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,538 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,722 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,472 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,594 |
| Population Trivia | 0 | - | 4.32 | 27,483 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,375 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,209 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 62,548 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,997 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,140 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,291 |
| Himalayan Countries | 0 | - | 4.95 | 137,730 |
| Andean Countries | 0 | - | 4.95 | 84,080 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,320 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,851 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,952 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,433 |
| Danube Countries | 0 | - | 4.97 | 71,732 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,657 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,130 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,781 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,861 |
| European Landlocked Countries | 0 | - | 4.99 | 146,857 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,226 |
| Countries with the Most Species | 0 | - | 4.99 | 102,997 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,387 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,455 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,616 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,364 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,041 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,435 |
| Countries in the Alps | 0 | - | 4.87 | 117,808 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,213 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,524 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,466 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,218 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,189 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,773 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,367 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,258 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,017 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,624 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,521 |
