| Biggest Cities in the World | 0 | - | 4.92 | 804,033 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,314 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,762 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,702 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,936 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,259 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,239 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,597 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,118 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,774 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,503 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,569 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,092 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,232 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,974 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,967 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,946 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,589 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,785 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,816 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,411 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,454 |
| Largest City by Island | 0 | - | 4.87 | 72,316 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,337 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,533 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,025 |
| Megacities on a World Map | 0 | - | 4.98 | 256,381 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,678 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,502 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,877 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,471 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,908 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,126 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,735 |
| Countries with Megacities | 0 | - | 4.99 | 266,276 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,460 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,874 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,756 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,984 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,850 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,941 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,355 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,003 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,037 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,413 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,992 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,952 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,981 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,620 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,113 |
| Biggest City by Region | 0 | - | 4.50 | 36,352 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,286 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,289 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,249 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,913 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,401 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,503 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,281 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,419 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,491 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,213 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,529 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,185 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,722 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,498 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,787 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,063 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,466 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,979 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,357 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,462 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,894 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,848 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,094 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,130 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,311 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,909 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,778 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,610 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,153 |
| Biggest Cities in History | 0 | - | 4.52 | 90,487 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,803 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,128 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,897 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,566 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,841 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,644 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,008 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,070 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,858 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,452 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,926 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,587 |
| Boundary Waters | 0 | - | 4.92 | 88,705 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,358 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,536 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,139 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,835 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,458 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,205 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,842 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,128 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,493 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,619 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,748 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,122 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,438 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,136 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,267 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,818 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,735 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,612 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,752 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,432 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,107 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,445 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,781 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,639 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,486 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,736 |
| Most Populous Islands | 0 | - | 4.80 | 123,223 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,359 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,612 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,944 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,422 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,715 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,708 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,060 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,445 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,833 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,061 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,466 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,395 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,756 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,908 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,081 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,641 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,715 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,429 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,221 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,713 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,795 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,063 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,787 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,444 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,718 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,755 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,855 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,443 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,125 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,768,797 |
| Landlocked Countries | 0 | - | 4.99 | 424,310 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,069 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,932 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,153 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,732 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,876 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,846 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,267 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,694 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,028 |
| Population Trivia | 0 | - | 4.32 | 27,544 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,729 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,632 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,409 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,094 |
| World Capitals Quiz | 0 | - | 5.00 | 5,098,020 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,552 |
| Himalayan Countries | 0 | - | 4.94 | 139,711 |
| Andean Countries | 0 | - | 4.94 | 85,149 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,325 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,579 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,903 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,186 |
| Danube Countries | 0 | - | 4.97 | 72,255 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,390 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,685 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,816 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,311 |
| European Landlocked Countries | 0 | - | 4.99 | 147,437 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,050 |
| Countries with the Most Species | 0 | - | 4.99 | 103,461 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,185 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,701 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,813 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,730 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,462 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,886 |
| Countries in the Alps | 0 | - | 4.87 | 118,553 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,243 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,568 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,845 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,859 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,782 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,120 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,026 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,716 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,331 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,049 |
