| Biggest Cities in the World | 0 | - | 4.91 | 794,324 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,445 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,197 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,464 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,396 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,509 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,871 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,068 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,978 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,158 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,467 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,530 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,059 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,115 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,332 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,494 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,398 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,930 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,321 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,583 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,573 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,519 |
| Largest City by Island | 0 | - | 4.87 | 71,432 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,616 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,999 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,002 |
| Megacities on a World Map | 0 | - | 4.98 | 252,423 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,047 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,411 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,697 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,791 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,142 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,628 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,383 |
| Countries with Megacities | 0 | - | 4.99 | 249,151 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,241 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,604 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,563 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,570 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,450 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,190 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,757 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,738 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,529 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,597 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,304 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,944 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,237 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,000 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,853 |
| Biggest City by Region | 0 | - | 4.50 | 36,076 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,010 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,711 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,295 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,301 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,177 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,112 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,289 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,088 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,444 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,324 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,312 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,957 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,370 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,110 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,121 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,664 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,736 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,172 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,806 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,755 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,832 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,826 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,048 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,299 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,138 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,861 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,843 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,947 |
| Biggest Cities in History | 0 | - | 4.52 | 89,722 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,224 |
| 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 | 20,414 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,320 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,876 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,268 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,962 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,280 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,834 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,332 |
| Boundary Waters | 0 | - | 4.92 | 88,250 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,982 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,674 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,849 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,144 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,387 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,933 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,354 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,903 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,420 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,766 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,934 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,641 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,815 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,178 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,239 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,406 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,051 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,802 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,717 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 88,297 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,900 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,157 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,715 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,542 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,623 |
| Most Populous Islands | 0 | - | 4.80 | 122,521 |
| 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 | 49,708 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,033 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,192 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,267 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,827 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,173 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,341 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,168 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,737 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,411 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,057 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,880 |
| 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 | 162,225 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,000 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,846 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,121 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,809 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,513 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,840 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,677 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,516 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,384 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,037 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,831 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,474 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,252 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,182,988 |
| Landlocked Countries | 0 | - | 4.99 | 416,918 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,523 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,593 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,090 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,089 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,332 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,389 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,381 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,331 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,293 |
| Population Trivia | 0 | - | 4.32 | 27,456 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,186 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,042 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,007 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,950 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,008 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,050 |
| Himalayan Countries | 0 | - | 4.95 | 136,607 |
| Andean Countries | 0 | - | 4.95 | 83,543 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,795 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,082 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,469 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,061 |
| Danube Countries | 0 | - | 4.97 | 71,455 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,266 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,867 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,212 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,200 |
| European Landlocked Countries | 0 | - | 4.99 | 146,158 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,815 |
| Countries with the Most Species | 0 | - | 4.99 | 102,080 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,942 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,343 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,522 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,180 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,828 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,208 |
| Countries in the Alps | 0 | - | 4.86 | 117,369 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,926 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,954 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,274 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,767 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,862 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,276 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,013 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,009 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,829 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,367 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,376 |
