| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,750 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,430 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,105 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,443 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,777 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,634 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,779 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,198 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,808 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,836 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,120 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,723 |
| Countries with Megacities | 0 | - | 4.99 | 266,244 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,445 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,864 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,741 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,976 |
| Independence from Whom | 0 | - | 4.99 | 212,698 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,176 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,737 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,857 |
| Countries by Founding Story | 0 | - | 4.95 | 77,643 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,921 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,934 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,994 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,312 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,178 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,714 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,497 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,783 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,059 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,460 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,756 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,698 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,925 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,251 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,218 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,590 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,112 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,765 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,501 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,565 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,090 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,229 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,939 |
| Cities by Former Name | 0 | - | 4.83 | 91,931 |
| Recently Independent Countries | 0 | - | 4.98 | 159,766 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,694 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,380 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,831 |
| Countries by Former Name | 0 | - | 4.99 | 125,632 |
| Historical City to Country | 0 | - | 4.85 | 78,807 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,949 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,898 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,575 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,978 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,353 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,450 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,840 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,121 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,487 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,611 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,744 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,116 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,406 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,450 |
| Largest City by Island | 0 | - | 4.87 | 72,309 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,335 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,533 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,018 |
| Megacities on a World Map | 0 | - | 4.98 | 256,366 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,107 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,676 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,498 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,867 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,466 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,604 |
| Former Capitals | 0 | - | 4.88 | 71,622 |
| Countries Settled by Vikings | 0 | - | 4.92 | 121,946 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,636 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,112 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,383 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,642 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,774 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,482 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,731 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,251 |
| Boundary Waters | 0 | - | 4.92 | 88,702 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,354 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,531 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,130 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,832 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,830 |
| Most Populous Islands | 0 | - | 4.80 | 123,218 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,359 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,611 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,054 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,782 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,437 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,716 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,943 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,753 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,852 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,419 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,438 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,714 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,846 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,938 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,349 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,983 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,034 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,411 |
| Ancient City to Country | 0 | - | 4.70 | 108,267 |
| City-States | 0 | - | 4.53 | 37,369 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,774 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,193 |
| Countries by Independence Day | 0 | - | 4.62 | 52,839 |
| Former Countries by Capital | 0 | - | 4.45 | 127,739 |
| Former Countries | 0 | - | 4.77 | 134,106 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,345 |
| Battle to Country | 0 | - | 4.91 | 53,779 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,092 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,115 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,651 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,766,155 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,025 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,726 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,977 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,618 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,113 |
| Biggest City by Region | 0 | - | 4.50 | 36,351 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,283 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,236 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,249 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,912 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,394 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,499 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,281 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,419 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,490 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,205 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,529 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 42,208 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,234 |
| Landlocked Countries | 0 | - | 4.99 | 424,264 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,628 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,635 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,532 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,352 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,490 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,845 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,262 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,693 |
| Population Trivia | 0 | - | 4.32 | 27,543 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,886 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,844 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,091 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,119 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,308 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,901 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,776 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,151 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,453 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,830 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,535 |
| Himalayan Countries | 0 | - | 4.94 | 139,689 |
| Andean Countries | 0 | - | 4.94 | 85,142 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,319 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,570 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,896 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,176 |
| Danube Countries | 0 | - | 4.97 | 72,252 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,385 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,684 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,808 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,297 |
| European Landlocked Countries | 0 | - | 4.99 | 147,431 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,047 |
| Countries with the Most Species | 0 | - | 4.99 | 103,457 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,924 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,175 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,701 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,813 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,728 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,456 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,880 |
| Countries in the Alps | 0 | - | 4.87 | 118,544 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,227 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,559 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,844 |
| Guerrillas by Country | 0 | - | 4.40 | 41,203 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,855 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,777 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,117 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,986 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,711 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,330 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,260 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,047 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,782 |
