| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,235 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,217 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,561 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,528 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,762 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,158 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,546 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,140 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,899 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,460 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,549 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,992 |
| Countries with Megacities | 0 | - | 4.99 | 246,513 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,909 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,793 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,364 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,753 |
| Independence from Whom | 0 | - | 4.99 | 209,590 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,676 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,970 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,831 |
| Countries by Founding Story | 0 | - | 4.95 | 76,489 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,427 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,454 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,917 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,076 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,773 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,820 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,823 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,440 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,538 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,204 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,593 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,581 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,760 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,795 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,890 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,435 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,479 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,517 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,015 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,126 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,702 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,633 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,470 |
| Cities by Former Name | 0 | - | 4.84 | 90,930 |
| Recently Independent Countries | 0 | - | 4.98 | 157,938 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,428 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,054 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,752 |
| Countries by Former Name | 0 | - | 4.99 | 124,237 |
| Historical City to Country | 0 | - | 4.84 | 78,110 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,461 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,056 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,673 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,648 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,079 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,919 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,111 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,257 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,852 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,355 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,534 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,254 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,345 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,794 |
| Largest City by Island | 0 | - | 4.87 | 71,004 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,351 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,484 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,149 |
| Megacities on a World Map | 0 | - | 4.98 | 250,807 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,000 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,762 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,823 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,619 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,098 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,396 |
| Former Capitals | 0 | - | 4.88 | 71,124 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,809 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,260 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,274 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,667 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,479 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,842 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,066 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,037 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,705 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,795 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,237 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,228 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,812 |
| Most Populous Islands | 0 | - | 4.78 | 121,950 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,196 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,399 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,834 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,919 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,781 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,947 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,601 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,799 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,336 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,834 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,111 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,907 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,956 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,231 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,539 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,857 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,453 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,267 |
| Ancient City to Country | 0 | - | 4.70 | 107,590 |
| City-States | 0 | - | 4.53 | 37,087 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,474 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,952 |
| Countries by Independence Day | 0 | - | 4.56 | 52,596 |
| Former Countries by Capital | 0 | - | 4.45 | 127,020 |
| Former Countries | 0 | - | 4.75 | 132,657 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,987 |
| Battle to Country | 0 | - | 4.91 | 52,481 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,168 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,870 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,890,751 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,423 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,926 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,877 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,890 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,676 |
| Biggest City by Region | 0 | - | 4.50 | 35,988 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,889 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,515 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,087 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,388 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,523 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,008 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,215 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,902 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,736 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,245 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,805 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,009 |
| Landlocked Countries | 0 | - | 4.99 | 413,276 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,728 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 551,975 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,669 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,817 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,196 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,135 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,959 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,108 |
| Population Trivia | 0 | - | 4.32 | 27,419 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,211 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,417 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,216 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,676 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,713 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,426 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,487 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,006 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,119 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,135 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,430 |
| Himalayan Countries | 0 | - | 4.95 | 135,212 |
| Andean Countries | 0 | - | 4.94 | 82,757 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,166 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,108 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,833 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,543 |
| Danube Countries | 0 | - | 4.97 | 71,044 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,708 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,499 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,392 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,317 |
| European Landlocked Countries | 0 | - | 4.99 | 145,714 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,141 |
| Countries with the Most Species | 0 | - | 4.99 | 95,223 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,638 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,286 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,356 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,938 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,548 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,920 |
| Countries in the Alps | 0 | - | 4.87 | 116,767 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,525 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,182 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,983 |
| Guerrillas by Country | 0 | - | 4.40 | 40,943 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,388 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,113 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,968 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,528 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,725 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,073 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,092 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,019 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,182 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,022 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,384 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,414 |
