| Biggest Cities in the World | 0 | - | 4.91 | 794,369 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,451 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,203 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,474 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,414 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,513 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,894 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,085 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,981 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,165 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,475 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,532 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,062 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,124 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,345 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,509 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,454 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,946 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,325 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,591 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,587 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,528 |
| Largest City by Island | 0 | - | 4.87 | 71,437 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,623 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,007 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,005 |
| Megacities on a World Map | 0 | - | 4.98 | 252,440 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,048 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,417 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,706 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,793 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,194 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,657 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,403 |
| Countries with Megacities | 0 | - | 4.99 | 249,185 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,258 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,612 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,571 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,574 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,456 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,199 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,760 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,757 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,550 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,606 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,371 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,956 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,238 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,001 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,856 |
| Biggest City by Region | 0 | - | 4.50 | 36,077 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,011 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,712 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,297 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,308 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,184 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,112 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,290 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,089 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,455 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,325 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,316 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,969 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,374 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,112 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,123 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,668 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,737 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,175 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,829 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,761 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,836 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,829 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,053 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,311 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,147 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,867 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,845 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,948 |
| Biggest Cities in History | 0 | - | 4.52 | 89,787 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,227 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,009 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,727 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,514 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,295 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,416 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,321 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,880 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,273 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,970 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,283 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,836 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,338 |
| Boundary Waters | 0 | - | 4.92 | 88,251 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,982 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,678 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,856 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,153 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,404 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,957 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,357 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,907 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,429 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,774 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,935 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,644 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,818 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,183 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,243 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,426 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,068 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,816 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,750 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 88,791 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,923 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,174 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,746 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,545 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,629 |
| Most Populous Islands | 0 | - | 4.80 | 122,585 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,251 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,468 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,709 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,034 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,194 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,271 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,828 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,173 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,349 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,174 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,748 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,415 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,059 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,884 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,350 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,881 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,229 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,004 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,848 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,127 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,812 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,517 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,851 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,688 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,524 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,387 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,042 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,834 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,478 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,295 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,185,825 |
| Landlocked Countries | 0 | - | 4.99 | 416,945 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,527 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,593 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,095 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,090 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,345 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,392 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,389 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,332 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,297 |
| Population Trivia | 0 | - | 4.32 | 27,456 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,187 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,046 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,009 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,952 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,214 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,061 |
| Himalayan Countries | 0 | - | 4.95 | 136,620 |
| Andean Countries | 0 | - | 4.95 | 83,549 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,802 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,090 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,471 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,064 |
| Danube Countries | 0 | - | 4.97 | 71,463 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,270 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,872 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,218 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,207 |
| European Landlocked Countries | 0 | - | 4.99 | 146,163 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,821 |
| Countries with the Most Species | 0 | - | 4.99 | 102,139 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,946 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,344 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,524 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,183 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,829 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,212 |
| Countries in the Alps | 0 | - | 4.86 | 117,377 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,928 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,959 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,276 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,768 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,863 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,279 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,018 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,010 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,833 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,371 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,377 |
