| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,460 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,389 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,743 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,655 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,918 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,361 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,007 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,471 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,229 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,305 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,725 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,731 |
| Countries with Megacities | 0 | - | 4.99 | 247,823 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,599 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,254 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,980 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,201 |
| Independence from Whom | 0 | - | 4.99 | 209,987 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,948 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,080 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,242 |
| Countries by Founding Story | 0 | - | 4.95 | 76,652 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,970 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,112 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,876 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,241 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,088 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,360 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,085 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,586 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,866 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,450 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,888 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,007 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,513 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,118 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,820 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,758 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,695 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,791 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,216 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,304 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,852 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,867 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,755 |
| Cities by Former Name | 0 | - | 4.84 | 91,083 |
| Recently Independent Countries | 0 | - | 4.98 | 158,121 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,726 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,484 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,228 |
| Countries by Former Name | 0 | - | 4.99 | 124,438 |
| Historical City to Country | 0 | - | 4.84 | 78,200 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,320 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,528 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,220 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,690 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,126 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,486 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,227 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,555 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,121 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,539 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,738 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,371 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,910 |
| Biggest Cities by Language | 0 | - | 4.96 | 242,098 |
| Largest City by Island | 0 | - | 4.87 | 71,178 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,479 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,712 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,542 |
| Megacities on a World Map | 0 | - | 4.98 | 251,479 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,083 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,905 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,018 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,079 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,357 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,668 |
| Former Capitals | 0 | - | 4.88 | 71,200 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,954 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,312 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,848 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,869 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,672 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,963 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,286 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,310 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,770 |
| Boundary Waters | 0 | - | 4.92 | 88,107 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,875 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,434 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,501 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,945 |
| Most Populous Islands | 0 | - | 4.79 | 122,071 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,219 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,429 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,264 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,223 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,061 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,108 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,652 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,893 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,567 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,908 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,256 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,025 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,192 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,713 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,633 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,647 |
| Megacities on an Empty Map | 0 | - | 4.96 | 106,365 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,411 |
| Ancient City to Country | 0 | - | 4.70 | 107,675 |
| City-States | 0 | - | 4.53 | 37,131 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,526 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,999 |
| Countries by Independence Day | 0 | - | 4.56 | 52,636 |
| Former Countries by Capital | 0 | - | 4.45 | 127,130 |
| Former Countries | 0 | - | 4.75 | 132,815 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,220 |
| Battle to Country | 0 | - | 4.91 | 52,631 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,298 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,145 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,271 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,008,792 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,470 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,030 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,030 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,936 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,770 |
| Biggest City by Region | 0 | - | 4.50 | 36,026 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,940 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,596 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,183 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,770 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,795 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,058 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,247 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,971 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,028 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,281 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,855 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,039 |
| Landlocked Countries | 0 | - | 4.99 | 414,732 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,141 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 556,056 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,786 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,068 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,535 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,242 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,129 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,202 |
| Population Trivia | 0 | - | 4.32 | 27,435 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,455 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,564 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,502 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,836 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,969 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,713 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,637 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,032 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,163 |
| World Capitals Quiz | 0 | - | 5.00 | 5,039,170 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,050 |
| Himalayan Countries | 0 | - | 4.95 | 135,743 |
| Andean Countries | 0 | - | 4.94 | 83,047 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,393 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,470 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,090 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,754 |
| Danube Countries | 0 | - | 4.97 | 71,195 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,921 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,651 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,734 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,641 |
| European Landlocked Countries | 0 | - | 4.99 | 145,891 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,397 |
| Countries with the Most Species | 0 | - | 4.99 | 95,307 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,675 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,552 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,241 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,409 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,024 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,665 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,033 |
| Countries in the Alps | 0 | - | 4.86 | 117,008 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,694 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,472 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,117 |
| Guerrillas by Country | 0 | - | 4.40 | 40,987 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,521 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,309 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,099 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,713 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,848 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,621 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,117 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,165 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,240 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,108 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,452 |
