| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,196 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,196 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,539 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,505 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,739 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,135 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,501 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,092 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,864 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,245 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,504 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,922 |
| Countries with Megacities | 0 | - | 4.99 | 246,327 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,842 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,762 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,295 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,701 |
| Independence from Whom | 0 | - | 4.99 | 209,534 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,620 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,952 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,623 |
| Countries by Founding Story | 0 | - | 4.95 | 76,466 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,904 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,349 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,567 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,047 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,750 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,756 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,786 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,416 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,516 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,175 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,542 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,519 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,637 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,744 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,743 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,387 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,440 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,471 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,979 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,085 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,673 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,605 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,396 |
| Cities by Former Name | 0 | - | 4.84 | 90,891 |
| Recently Independent Countries | 0 | - | 4.98 | 157,898 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,361 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,963 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,648 |
| Countries by Former Name | 0 | - | 4.99 | 124,186 |
| Historical City to Country | 0 | - | 4.84 | 78,093 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,351 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,519 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,567 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,637 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,073 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,802 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,093 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,197 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,791 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,317 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,490 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,239 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,275 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,737 |
| Largest City by Island | 0 | - | 4.87 | 70,975 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,308 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,441 |
| Biggest European Cities by Century | 0 | - | 4.98 | 140,213 |
| Megacities on a World Map | 0 | - | 4.98 | 250,622 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,791 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,735 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,786 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,554 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,059 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,349 |
| Former Capitals | 0 | - | 4.88 | 71,099 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,775 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,247 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,209 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,638 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,441 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,826 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,029 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,999 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,687 |
| Boundary Waters | 0 | - | 4.92 | 88,008 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,790 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,201 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,167 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,784 |
| Most Populous Islands | 0 | - | 4.78 | 121,924 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,193 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,397 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,764 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,855 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,722 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,923 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,591 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,771 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,295 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,813 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,082 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,875 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,884 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,144 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,521 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,729 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,388 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,239 |
| Ancient City to Country | 0 | - | 4.70 | 107,574 |
| City-States | 0 | - | 4.53 | 37,079 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,465 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,943 |
| Countries by Independence Day | 0 | - | 4.56 | 52,587 |
| Former Countries by Capital | 0 | - | 4.45 | 126,978 |
| Former Countries | 0 | - | 4.75 | 132,605 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,944 |
| Battle to Country | 0 | - | 4.91 | 52,460 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,154 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,819 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,869,495 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,382 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,884 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,851 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,887 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,657 |
| Biggest City by Region | 0 | - | 4.50 | 35,978 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,880 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,498 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,058 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,322 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,484 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,998 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,210 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,894 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,699 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,240 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,799 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,004 |
| Landlocked Countries | 0 | - | 4.99 | 413,065 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,695 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 551,301 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,645 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,741 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,149 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,120 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,928 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,087 |
| Population Trivia | 0 | - | 4.32 | 27,413 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,165 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,383 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,173 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,635 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,673 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,359 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,472 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,002 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,112 |
| World Capitals Quiz | 0 | - | 5.00 | 5,027,174 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,337 |
| Himalayan Countries | 0 | - | 4.95 | 135,125 |
| Andean Countries | 0 | - | 4.94 | 82,709 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,125 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,045 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,801 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,503 |
| Danube Countries | 0 | - | 4.97 | 71,017 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,678 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,476 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,336 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,252 |
| European Landlocked Countries | 0 | - | 4.99 | 145,691 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,091 |
| Countries with the Most Species | 0 | - | 4.99 | 95,208 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,632 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,243 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,183 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,341 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,919 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,533 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,892 |
| Countries in the Alps | 0 | - | 4.87 | 116,720 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,501 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,127 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,961 |
| Guerrillas by Country | 0 | - | 4.40 | 40,937 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,350 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,082 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,945 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,498 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,703 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,713 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,089 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,992 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,174 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,008 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,369 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,390 |
