| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,457 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,388 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,738 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,654 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,356 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,999 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,460 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,221 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,262 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,718 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,722 |
| Countries with Megacities | 0 | - | 4.99 | 247,796 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,584 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,245 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,968 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,194 |
| Independence from Whom | 0 | - | 4.99 | 209,968 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,940 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,076 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,226 |
| Countries by Founding Story | 0 | - | 4.95 | 76,643 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,892 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,089 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,824 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,238 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,084 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,346 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,074 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,582 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,863 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,446 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,880 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,992 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,487 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,108 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,796 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,750 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,679 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,784 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,207 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,296 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,849 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,858 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,730 |
| Cities by Former Name | 0 | - | 4.84 | 91,077 |
| Recently Independent Countries | 0 | - | 4.98 | 158,115 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,714 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,461 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,218 |
| Countries by Former Name | 0 | - | 4.99 | 124,433 |
| Historical City to Country | 0 | - | 4.84 | 78,198 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,278 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,464 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,212 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,689 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,125 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,461 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,225 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,546 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,114 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,532 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,733 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,369 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,897 |
| Biggest Cities by Language | 0 | - | 4.96 | 241,799 |
| Largest City by Island | 0 | - | 4.87 | 71,171 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,474 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,707 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,522 |
| Megacities on a World Map | 0 | - | 4.98 | 251,461 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,042 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,899 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,005 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,063 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,347 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,662 |
| Former Capitals | 0 | - | 4.88 | 71,197 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,947 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,308 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,828 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,862 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,665 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,961 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,281 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,299 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,769 |
| Boundary Waters | 0 | - | 4.92 | 88,101 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,872 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,426 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,494 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,940 |
| Most Populous Islands | 0 | - | 4.79 | 122,066 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,217 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,428 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,242 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,209 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,045 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,106 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,650 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,891 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,559 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,907 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,252 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,020 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,190 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,702 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,627 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,617 |
| Megacities on an Empty Map | 0 | - | 4.96 | 104,879 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,404 |
| Ancient City to Country | 0 | - | 4.70 | 107,672 |
| City-States | 0 | - | 4.53 | 37,131 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,524 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,998 |
| Countries by Independence Day | 0 | - | 4.56 | 52,635 |
| Former Countries by Capital | 0 | - | 4.45 | 127,125 |
| Former Countries | 0 | - | 4.75 | 132,809 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,209 |
| Battle to Country | 0 | - | 4.91 | 52,628 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,295 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,129 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,253 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,005,514 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,431 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,026 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,024 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,936 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,768 |
| Biggest City by Region | 0 | - | 4.50 | 36,024 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,938 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,592 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,178 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,758 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,782 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,057 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,247 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,967 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,013 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,280 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,854 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,039 |
| Landlocked Countries | 0 | - | 4.99 | 414,683 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,135 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 555,961 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,779 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,062 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,528 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,239 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,119 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,198 |
| Population Trivia | 0 | - | 4.32 | 27,432 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,448 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,561 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,491 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,832 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,964 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,704 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,633 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,030 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,163 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,854 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,031 |
| Himalayan Countries | 0 | - | 4.95 | 135,729 |
| Andean Countries | 0 | - | 4.94 | 83,039 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,388 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,462 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,085 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,748 |
| Danube Countries | 0 | - | 4.97 | 71,189 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,914 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,646 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,722 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,624 |
| European Landlocked Countries | 0 | - | 4.99 | 145,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,382 |
| Countries with the Most Species | 0 | - | 4.99 | 95,305 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,672 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,548 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,240 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,409 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,021 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,662 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,029 |
| Countries in the Alps | 0 | - | 4.86 | 116,997 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,688 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,468 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,113 |
| Guerrillas by Country | 0 | - | 4.40 | 40,987 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,516 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,304 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,096 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,708 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,846 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,610 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,117 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,158 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,236 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,106 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,448 |
