| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 39,856,797 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 310,809 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,252 |
| Himalayan Countries | 0 | - | 4.95 | 99,690 |
| Andean Countries | 0 | - | 4.92 | 55,272 |
| Countries with the Oldest Median Age | 0 | - | 4.88 | 56,205 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 47,475 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 100,438 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,854 |
| Danube Countries | 0 | - | 4.97 | 55,854 |
| Countries With an "Ish" Demonym | 0 | - | 4.96 | 90,931 |
| Countries With an "Ese" Demonym | 0 | - | 4.95 | 64,239 |
| Countries with the Worst Passports | 0 | - | 4.88 | 48,035 |
| Countries with the Most Immigrants | 0 | - | 4.84 | 107,245 |
| European Landlocked Countries | 0 | - | 4.99 | 114,039 |
| Partially Recognized Countries | 0 | - | 4.98 | 87,943 |
| Countries with the Most Species | 0 | - | 4.99 | 88,883 |
| Tropic of Cancer Countries | 0 | - | 4.93 | 44,203 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,565 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 46,884 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 58,131 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 48,102 |
| Countries in the Alps | 0 | - | 4.85 | 100,705 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 83,781 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 84,383 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 70,611 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,033 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 92,320 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.88 | 86,345 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 88,356 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,307 |
| Biggest Country by Body of Water | 0 | - | 4.97 | 44,733 |
| Countries with the Most Container Port Traffic | 0 | - | 4.93 | 53,562 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 68,316 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 48,028 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 36,084 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.91 | 94,147 |
| Arctic Ocean Countries | 0 | - | 4.95 | 70,917 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,403 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 94,941 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 60,514 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,430 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 188,911 |
| World Countries - Blind Typing | 0 | - | 5.00 | 69,453 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 41,542 |
| Largest Countries By Category | 0 | - | 4.97 | 142,607 |
| Countries by Countries | 0 | - | 4.93 | 53,379 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,366 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,949,037 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 335,772 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 346,805 |
| Island Countries Quiz | 0 | - | 4.99 | 632,135 |
| Biggest Countries by Area | 0 | - | 4.99 | 914,505 |
| Northernmost Countries | 0 | - | 4.98 | 322,732 |
| Countries of South America | 0 | - | 5.00 | 771,046 |
| Countries of Oceania | 0 | - | 5.00 | 864,686 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,050,006 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,521,126 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,175 |
| Countries with Megacities | 0 | - | 4.99 | 191,684 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,655 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,578 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 91,842 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 61,494 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 241,835 |
| Countries by Official Language | 0 | - | 4.94 | 152,015 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.88 | 242,597 |
| Countries in their Native Language | 0 | - | 4.97 | 175,247 |
| Independence from Whom | 0 | - | 4.99 | 180,327 |
| Subdivisions by Country | 0 | - | 4.84 | 45,902 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 109,994 |
| Megadiverse Countries | 0 | - | 4.94 | 123,837 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 88,272 |
| Countries with Multiple Big Islands | 0 | - | 4.89 | 105,310 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.85 | 46,807 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 128,234 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 47,988 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 74,968 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.96 | 143,097 |
| Countries with Multiple Populous Islands | 0 | - | 4.83 | 75,929 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,648 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 41,838 |
| Landmarks of Countries #1 | 0 | - | 4.82 | 100,298 |
| Countries Furthest from the United States | 0 | - | 4.89 | 70,749 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,239 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 57,143 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,217 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 77,783 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,818 |
| Southernmost Countries of the World | 0 | - | 4.99 | 198,899 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 88,975 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,777 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,163 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 85,836 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.82 | 69,934 |
| Countries with the Most Prisoners | 0 | - | 4.91 | 84,279 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 52,443 |
| Widest Countries East to West | 0 | - | 4.91 | 117,669 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,472 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 156,406 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 91,666 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.95 | 83,994 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 116,775 |
| Countries with the Most Desert | 0 | - | 4.91 | 103,474 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 66,029 |
| Countries with Double Letters | 0 | - | 4.96 | 64,315 |
| Countries that End in N | 0 | - | 4.94 | 129,267 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 225,303 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 171,399 |
| Countries with W | 0 | - | 4.97 | 119,979 |
| Countries with Z | 0 | - | 4.98 | 239,866 |
| Countries with Letters Missing | 0 | - | 4.98 | 152,829 |
| Countries That End in U | 0 | - | 4.93 | 105,868 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 86,593 |
| Countries that End in O | 0 | - | 4.90 | 145,586 |
| Countries that End in R | 0 | - | 4.85 | 95,626 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,299 |
| Countries Ending in "IA" | 0 | - | 4.99 | 167,882 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 153,828 |
| Countries by Last Two Letters | 0 | - | 4.89 | 114,427 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 127,584 |
| Countries That End in Y | 0 | - | 4.89 | 160,271 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 158,226 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.88 | 118,804 |
| Countries that End in I | 0 | - | 4.90 | 113,702 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 147,101 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.97 | 86,897 |
| Countries That End in NIA | 0 | - | 4.91 | 99,634 |
| Countries That End in BIA | 0 | - | 4.91 | 124,414 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.91 | 151,114 |
| Countries Whose Names Start with Saint | 0 | - | 4.82 | 108,259 |
| Countries That End in RIA | 0 | - | 4.83 | 99,434 |
| Most Common Words in Official Country Names | 0 | - | 4.84 | 98,962 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 196,255 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 117,396 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 108,038 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 75,049 |
| Countries with a Unique Last Letter | 0 | - | 4.92 | 90,628 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 94,933 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 38,741 |
| Countries that End in L | 0 | - | 4.94 | 132,451 |
| "Land" Countries | 0 | - | 4.98 | 285,902 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 186,150 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 64,920 |
| City to Country Quiz #1 | 0 | - | 4.93 | 133,079 |
| City to Country Quiz #3 | 0 | - | 4.85 | 98,887 |
| 45 European Countries, 45 Cities | 0 | - | 4.96 | 70,436 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 204,537 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 155,866 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 114,898 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 130,514 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 190,590 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 138,844 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.85 | 65,076 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.85 | 90,846 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,330 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 54,781 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,290,296 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,245 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,999,994 |
| One Border Countries | 0 | - | 4.97 | 402,934 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.85 | 31,610 |
| Countries With One Word and Three A's | 0 | - | 4.88 | 29,514 |
| Top-Producing Countries | 0 | - | 4.61 | 99,234 |
| Country Codes Quiz | 0 | - | 4.42 | 76,158 |
| Countries on the Equator | 0 | - | 4.80 | 122,021 |
| Members of the Arab League | 0 | - | 4.68 | 58,252 |
| Coffee Producing Countries | 0 | - | 4.76 | 53,329 |
| Separatist Movements | 0 | - | 4.41 | 42,045 |
| Countries with the Best Passports | 0 | - | 4.79 | 69,435 |
| Prime Meridian Countries | 0 | - | 4.50 | 51,539 |
| Next Country Alphabetically | 0 | - | 4.61 | 67,868 |
| Countries 197 to 205 | 0 | - | 4.76 | 55,273 |
| Easternmost Countries | 0 | - | 4.63 | 59,994 |
| Countries that Use the Peso | 0 | - | 4.80 | 45,811 |
| Countries With the Most ISIS Fighters | 0 | - | 4.60 | 36,571 |
| Top 10 Most Famous Island Countries | 0 | - | 4.68 | 96,858 |
| Indochina Countries | 0 | - | 4.75 | 62,152 |
| Atlantic Ocean Island Countries | 0 | - | 4.49 | 46,659 |
| Countries With the Most Conflict Deaths | 0 | - | 4.60 | 89,906 |
| Highest Foreign Aid Recipients | 0 | - | 4.63 | 42,041 |
| Pacific Ocean Island Countries | 0 | - | 4.47 | 54,666 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.63 | 45,501 |
| Countries that are the Source of Refugees | 0 | - | 4.63 | 55,696 |
| Most Populous Countries By Category | 0 | - | 4.45 | 60,534 |
| Countries with the Most Turkic People | 0 | - | 4.68 | 41,385 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.62 | 44,156 |
| Top 50 Countries by Area - In Order | 0 | - | 4.61 | 65,600 |
| Countries with the Most Coral Reefs | 0 | - | 4.60 | 37,015 |
| Countries Without a U.S. Embassy | 0 | - | 4.56 | 41,233 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.69 | 48,620 |
| Countries with the Most Light Pollution | 0 | - | 4.50 | 43,622 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,310,068 |
| Boundary Waters | 0 | - | 4.92 | 79,993 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 72,777 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,519 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,527 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 107,265 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 88,950 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.95 | 63,691 |
