| Biggest Cities in the World | 0 | - | 4.92 | 789,395 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,041 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,506 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,455 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,575 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,707 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,670 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,351 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,415 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,432 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,958 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,070 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,651 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,585 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,329 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,286 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,271 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,521 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,489 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,850 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,242 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,712 |
| Largest City by Island | 0 | - | 4.87 | 70,958 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,264 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,414 |
| Biggest European Cities by Century | 0 | - | 4.98 | 137,281 |
| Megacities on a World Map | 0 | - | 4.98 | 250,458 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,727 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,767 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,516 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,029 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,149 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,703 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,894 |
| Countries with Megacities | 0 | - | 4.99 | 246,265 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,813 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,749 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,272 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,687 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,805 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,114 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,512 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,671 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,355 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,227 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,729 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,207 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,846 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,881 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,649 |
| Biggest City by Region | 0 | - | 4.50 | 35,975 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,873 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,491 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,046 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,302 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,468 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,997 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,205 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,889 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,675 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,235 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,738 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,727 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,769 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,410 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,500 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,168 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,632 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,070 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,641 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,141 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,374 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,153 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,615 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,633 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,327 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,456 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,283 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,833 |
| Biggest Cities in History | 0 | - | 4.52 | 89,055 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,072 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,968 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,652 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,456 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,159 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,175 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,155 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,412 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,889 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,455 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,816 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,053 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,916 |
| Boundary Waters | 0 | - | 4.92 | 87,996 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,190 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,151 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,773 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,749 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,078 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,182 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,773 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,305 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,480 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,232 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,618 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,059 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,751 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,000 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,326 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,178 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,190 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,525 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,494 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,729 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,118 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,015 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,980 |
| Most Populous Islands | 0 | - | 4.78 | 121,916 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,191 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,395 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,588 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,807 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,863 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,074 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,729 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,993 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,819 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,164 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,261 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,920 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,901 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,010 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,833 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,650 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,523 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,570 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,681 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,363 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,739 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,829 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,698 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,908 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,768 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,278 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,069 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,485 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,861,224 |
| Landlocked Countries | 0 | - | 4.99 | 412,972 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,260 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,444 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,558 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,724 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,213 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,114 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,915 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,083 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,375 |
| Population Trivia | 0 | - | 4.32 | 27,413 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,876 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,546 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,556 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,865 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,366 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,301 |
| Himalayan Countries | 0 | - | 4.95 | 135,093 |
| Andean Countries | 0 | - | 4.94 | 82,689 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,100 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,023 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,788 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,491 |
| Danube Countries | 0 | - | 4.97 | 71,012 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,658 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,468 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,315 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,229 |
| European Landlocked Countries | 0 | - | 4.99 | 145,680 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,070 |
| Countries with the Most Species | 0 | - | 4.99 | 95,198 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,224 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,178 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,335 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,913 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,524 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,882 |
| Countries in the Alps | 0 | - | 4.87 | 116,705 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,489 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,109 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,949 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,335 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,075 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,942 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,484 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,695 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,304 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,983 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,168 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,002 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,378 |
