| Biggest Cities in the World | 0 | - | 4.91 | 796,884 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,746 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,517 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,979 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,236 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,943 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,954 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,425 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,236 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,515 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,696 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,803 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 61,520 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,400 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,898 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,563 |
| Biggest Cities in the United States | 0 | - | 4.94 | 975,907 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,593 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,689 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,922 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,067 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,046 |
| Largest City by Island | 0 | - | 4.87 | 71,694 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,798 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,691 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,271 |
| Megacities on a World Map | 0 | - | 4.98 | 253,500 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,225 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,728 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,265 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,102 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,094 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,137 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,057 |
| Countries with Megacities | 0 | - | 4.99 | 260,589 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,923 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,016 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,198 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,021 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,916 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,676 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,905 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,854 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,135 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,821 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,449 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,778 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,410 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,050 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,924 |
| Biggest City by Region | 0 | - | 4.50 | 36,128 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,057 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,799 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,409 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,953 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,545 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,155 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,330 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,171 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,007 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,372 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,568 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,454 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,694 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,282 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,384 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,940 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,803 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,221 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,515 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,060 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,077 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,159 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,240 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,601 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,518 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,058 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,355 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,005 |
| Biggest Cities in History | 0 | - | 4.52 | 90,021 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 76,328 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,035 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,757 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,537 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,360 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,541 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,399 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,135 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,465 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,218 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,535 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,128 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,900 |
| Boundary Waters | 0 | - | 4.92 | 88,383 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,088 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,924 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,198 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,352 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,235 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,416 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,511 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,245 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,734 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,989 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,181 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,829 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,971 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,685 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,530 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,034 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,775 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,121 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,097 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,525 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,169 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,452 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,093 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,801 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,928 |
| Most Populous Islands | 0 | - | 4.80 | 122,804 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,279 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,509 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,772 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,143 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,322 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,395 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,873 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,242 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.69 | 64,745 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,670 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,952 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,502 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,144 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,375 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,479 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,912 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,515 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,167 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,981 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,378 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,069 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,599 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,493 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,548 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,059 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,660 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,360 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,061 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,721 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,603 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,341,940 |
| Landlocked Countries | 0 | - | 4.99 | 419,068 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,662 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,683 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,371 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,258 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,755 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,503 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,635 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,429 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,535 |
| Population Trivia | 0 | - | 4.32 | 27,474 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,336 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,174 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,190 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,990 |
| World Capitals Quiz | 0 | - | 5.00 | 5,064,331 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,033 |
| Himalayan Countries | 0 | - | 4.94 | 137,473 |
| Andean Countries | 0 | - | 4.95 | 83,962 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,241 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,694 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,851 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,366 |
| Danube Countries | 0 | - | 4.97 | 71,674 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,567 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,066 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,672 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,749 |
| European Landlocked Countries | 0 | - | 4.99 | 146,789 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,147 |
| Countries with the Most Species | 0 | - | 4.99 | 102,923 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,284 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,435 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,592 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,313 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,999 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,372 |
| Countries in the Alps | 0 | - | 4.87 | 117,706 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,146 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,386 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,428 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,003 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,111 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,667 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,293 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,198 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,974 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,560 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,487 |
