| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 39,893,906 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 311,210 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,452 |
| Himalayan Countries | 0 | - | 4.95 | 99,870 |
| Andean Countries | 0 | - | 4.92 | 55,367 |
| Countries with the Oldest Median Age | 0 | - | 4.88 | 56,289 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 47,555 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 100,525 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,921 |
| Danube Countries | 0 | - | 4.97 | 55,882 |
| Countries With an "Ish" Demonym | 0 | - | 4.96 | 90,959 |
| Countries With an "Ese" Demonym | 0 | - | 4.95 | 64,260 |
| Countries with the Worst Passports | 0 | - | 4.88 | 48,073 |
| Countries with the Most Immigrants | 0 | - | 4.84 | 107,305 |
| European Landlocked Countries | 0 | - | 4.99 | 114,067 |
| Partially Recognized Countries | 0 | - | 4.98 | 87,999 |
| Countries with the Most Species | 0 | - | 4.99 | 88,893 |
| Tropic of Cancer Countries | 0 | - | 4.93 | 44,218 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,582 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 46,929 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 58,145 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 48,149 |
| Countries in the Alps | 0 | - | 4.85 | 100,769 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 83,844 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 84,457 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 70,639 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,087 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 92,392 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.88 | 86,373 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 88,387 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,333 |
| Biggest Country by Body of Water | 0 | - | 4.97 | 44,754 |
| Countries with the Most Container Port Traffic | 0 | - | 4.93 | 53,600 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.90 | 68,365 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 48,045 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 36,110 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.91 | 94,357 |
| Arctic Ocean Countries | 0 | - | 4.95 | 70,953 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,435 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 95,034 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 60,536 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,453 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 189,079 |
| World Countries - Blind Typing | 0 | - | 5.00 | 69,532 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 41,574 |
| Largest Countries By Category | 0 | - | 4.97 | 142,681 |
| Countries by Countries | 0 | - | 4.93 | 53,413 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,424 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,953,161 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 335,919 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 347,064 |
| Island Countries Quiz | 0 | - | 4.99 | 632,530 |
| Biggest Countries by Area | 0 | - | 4.99 | 915,144 |
| Northernmost Countries | 0 | - | 4.98 | 323,017 |
| Countries of South America | 0 | - | 5.00 | 771,921 |
| Countries of Oceania | 0 | - | 5.00 | 865,682 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,053,869 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,523,317 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,291 |
| Countries with Megacities | 0 | - | 4.99 | 191,835 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,786 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,647 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 91,950 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 61,570 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 242,029 |
| Countries by Official Language | 0 | - | 4.94 | 152,093 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.89 | 242,869 |
| Countries in their Native Language | 0 | - | 4.97 | 175,354 |
| Independence from Whom | 0 | - | 4.99 | 180,458 |
| Subdivisions by Country | 0 | - | 4.84 | 45,921 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 110,076 |
| Megadiverse Countries | 0 | - | 4.94 | 123,895 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 88,345 |
| Countries with Multiple Big Islands | 0 | - | 4.89 | 105,369 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.85 | 46,832 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 128,720 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 48,011 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 75,028 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.96 | 143,305 |
| Countries with Multiple Populous Islands | 0 | - | 4.83 | 75,976 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,658 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 41,888 |
| Landmarks of Countries #1 | 0 | - | 4.82 | 100,331 |
| Countries Furthest from the United States | 0 | - | 4.89 | 70,777 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,256 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 57,168 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,255 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 77,918 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,894 |
| Southernmost Countries of the World | 0 | - | 4.99 | 202,308 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 89,152 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,905 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,339 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 85,916 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.82 | 70,023 |
| Countries with the Most Prisoners | 0 | - | 4.91 | 84,405 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 52,507 |
| Widest Countries East to West | 0 | - | 4.91 | 117,749 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,487 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 156,476 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 91,690 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.95 | 84,029 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 116,832 |
| Countries with the Most Desert | 0 | - | 4.91 | 103,519 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 66,044 |
| Countries with Double Letters | 0 | - | 4.96 | 64,596 |
| Countries that End in N | 0 | - | 4.94 | 129,353 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 225,398 |
| Countries with Six Letters Quiz | 0 | - | 4.92 | 171,487 |
| Countries with W | 0 | - | 4.97 | 120,049 |
| Countries with Z | 0 | - | 4.98 | 239,971 |
| Countries with Letters Missing | 0 | - | 4.98 | 152,889 |
| Countries That End in U | 0 | - | 4.93 | 105,905 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 86,672 |
| Countries that End in O | 0 | - | 4.90 | 145,632 |
| Countries that End in R | 0 | - | 4.85 | 95,647 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,331 |
| Countries Ending in "IA" | 0 | - | 4.99 | 167,956 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 153,873 |
| Countries by Last Two Letters | 0 | - | 4.89 | 114,477 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 127,625 |
| Countries That End in Y | 0 | - | 4.89 | 160,299 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 158,315 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.89 | 118,865 |
| Countries that End in I | 0 | - | 4.90 | 113,731 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 147,173 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.97 | 86,927 |
| Countries That End in NIA | 0 | - | 4.91 | 99,666 |
| Countries That End in BIA | 0 | - | 4.91 | 124,449 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.91 | 151,182 |
| Countries Whose Names Start with Saint | 0 | - | 4.82 | 108,309 |
| Countries That End in RIA | 0 | - | 4.83 | 99,488 |
| Most Common Words in Official Country Names | 0 | - | 4.84 | 99,005 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 196,399 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 117,463 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 108,121 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 75,111 |
| Countries with a Unique Last Letter | 0 | - | 4.92 | 90,681 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 94,981 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 38,797 |
| Countries that End in L | 0 | - | 4.94 | 132,505 |
| "Land" Countries | 0 | - | 4.98 | 285,982 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 186,236 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 64,930 |
| City to Country Quiz #1 | 0 | - | 4.93 | 133,120 |
| City to Country Quiz #3 | 0 | - | 4.85 | 98,919 |
| 45 European Countries, 45 Cities | 0 | - | 4.96 | 70,478 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 204,624 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 155,919 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 114,949 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 130,576 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 190,670 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 138,890 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.85 | 65,096 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.85 | 90,877 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,358 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 54,813 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,290,986 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,373 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,001,983 |
| One Border Countries | 0 | - | 4.97 | 403,159 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.85 | 31,623 |
| Countries With One Word and Three A's | 0 | - | 4.88 | 29,553 |
| Top-Producing Countries | 0 | - | 4.61 | 99,248 |
| Country Codes Quiz | 0 | - | 4.42 | 76,185 |
| Countries on the Equator | 0 | - | 4.80 | 122,052 |
| Members of the Arab League | 0 | - | 4.69 | 58,263 |
| Coffee Producing Countries | 0 | - | 4.76 | 53,332 |
| Separatist Movements | 0 | - | 4.41 | 42,067 |
| Countries with the Best Passports | 0 | - | 4.79 | 69,491 |
| Prime Meridian Countries | 0 | - | 4.50 | 51,543 |
| Next Country Alphabetically | 0 | - | 4.60 | 67,899 |
| Countries 197 to 205 | 0 | - | 4.76 | 55,294 |
| Easternmost Countries | 0 | - | 4.63 | 60,015 |
| Countries that Use the Peso | 0 | - | 4.80 | 45,826 |
| Countries With the Most ISIS Fighters | 0 | - | 4.60 | 36,585 |
| Top 10 Most Famous Island Countries | 0 | - | 4.68 | 96,900 |
| Indochina Countries | 0 | - | 4.75 | 62,178 |
| Atlantic Ocean Island Countries | 0 | - | 4.49 | 46,665 |
| Countries With the Most Conflict Deaths | 0 | - | 4.60 | 89,929 |
| Highest Foreign Aid Recipients | 0 | - | 4.63 | 42,054 |
| Pacific Ocean Island Countries | 0 | - | 4.47 | 54,685 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.63 | 45,513 |
| Countries that are the Source of Refugees | 0 | - | 4.63 | 55,720 |
| Most Populous Countries By Category | 0 | - | 4.45 | 60,555 |
| Countries with the Most Turkic People | 0 | - | 4.68 | 41,403 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.62 | 44,185 |
| Top 50 Countries by Area - In Order | 0 | - | 4.62 | 65,640 |
| Countries with the Most Coral Reefs | 0 | - | 4.60 | 37,031 |
| Countries Without a U.S. Embassy | 0 | - | 4.56 | 41,267 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.69 | 48,657 |
| Countries with the Most Light Pollution | 0 | - | 4.50 | 43,634 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,312,819 |
| Boundary Waters | 0 | - | 4.92 | 80,022 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 72,842 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,563 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,615 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 107,320 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 88,984 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 63,732 |
