| Biggest Cities in the World | 0 | - | 4.91 | 804,759 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,377 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,850 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,818 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,155 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,346 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,620 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,681 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,181 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,877 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,560 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,628 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,146 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,315 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,142 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,288 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,955 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,809 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,873 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,902 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,490 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,551 |
| Largest City by Island | 0 | - | 4.87 | 72,382 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,376 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,615 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,074 |
| Megacities on a World Map | 0 | - | 4.98 | 256,630 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,723 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,580 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,073 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,566 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,813 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,506 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,943 |
| Countries with Megacities | 0 | - | 4.99 | 266,697 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,644 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,996 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,953 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,115 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,907 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,027 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,392 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,324 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,107 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,464 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,951 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,185 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,043 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,631 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,137 |
| Biggest City by Region | 0 | - | 4.50 | 36,373 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,312 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,603 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,280 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,948 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,576 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,599 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,298 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,429 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,518 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,325 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,553 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,261 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,883 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,576 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,847 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,133 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,525 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,998 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,370 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,767 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,981 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,931 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,188 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,364 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,379 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,043 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,842 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,723 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,166 |
| Biggest Cities in History | 0 | - | 4.52 | 90,542 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,893 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,133 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,902 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,588 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,874 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,667 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,080 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,122 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,906 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,521 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,004 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,663 |
| Boundary Waters | 0 | - | 4.92 | 88,729 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,383 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,610 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,230 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,883 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,694 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,308 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,874 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,241 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,581 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,688 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,821 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,163 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,480 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,293 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,350 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,997 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,754 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,697 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,822 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,476 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,139 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,482 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,833 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,693 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,561 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,813 |
| Most Populous Islands | 0 | - | 4.80 | 123,259 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,370 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,632 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,964 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,449 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,766 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,737 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,078 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,458 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,046 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,206 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,505 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,421 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,882 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,968 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,176 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,981 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,729 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,756 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,466 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,288 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,782 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,814 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,217 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,889 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,573 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,780 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,798 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,923 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,498 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,188 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,818,444 |
| Landlocked Countries | 0 | - | 4.99 | 424,925 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,107 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,956 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,242 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,768 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,012 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,889 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,331 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,728 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,076 |
| Population Trivia | 0 | - | 4.32 | 27,551 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,757 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,955 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,469 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,102 |
| World Capitals Quiz | 0 | - | 5.00 | 5,101,672 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,836 |
| Himalayan Countries | 0 | - | 4.93 | 139,924 |
| Andean Countries | 0 | - | 4.94 | 85,263 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,428 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,769 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,996 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,297 |
| Danube Countries | 0 | - | 4.97 | 72,303 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,466 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,748 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,940 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,437 |
| European Landlocked Countries | 0 | - | 4.99 | 147,505 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,162 |
| Countries with the Most Species | 0 | - | 4.99 | 103,512 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,295 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,727 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,839 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,776 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,509 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,942 |
| Countries in the Alps | 0 | - | 4.87 | 118,659 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,435 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,696 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,907 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,939 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,862 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,177 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,298 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,798 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,363 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,100 |
