| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of South America | 0 | - | 5.00 | 772,826 |
| Countries of Oceania | 0 | - | 5.00 | 866,841 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,058,250 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,525,856 |
| Countries of the World Quiz | 0 | - | 5.00 | 39,934,793 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 311,574 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,652 |
| Himalayan Countries | 0 | - | 4.95 | 100,057 |
| Andean Countries | 0 | - | 4.92 | 55,464 |
| Countries with the Oldest Median Age | 0 | - | 4.88 | 56,390 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 47,623 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 100,633 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,970 |
| Danube Countries | 0 | - | 4.97 | 55,916 |
| Countries With an "Ish" Demonym | 0 | - | 4.96 | 90,990 |
| Countries With an "Ese" Demonym | 0 | - | 4.95 | 64,285 |
| Countries with the Worst Passports | 0 | - | 4.88 | 48,123 |
| Countries with the Most Immigrants | 0 | - | 4.84 | 107,356 |
| European Landlocked Countries | 0 | - | 4.99 | 114,093 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,054 |
| Countries with the Most Species | 0 | - | 4.99 | 88,913 |
| Tropic of Cancer Countries | 0 | - | 4.93 | 44,237 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,600 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,004 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 58,164 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 48,187 |
| Countries in the Alps | 0 | - | 4.85 | 100,827 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 83,910 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 84,526 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 70,667 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,130 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 92,704 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.88 | 86,412 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 88,434 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,371 |
| Biggest Country by Body of Water | 0 | - | 4.97 | 44,774 |
| Countries with the Most Container Port Traffic | 0 | - | 4.93 | 53,637 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.90 | 68,422 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 48,076 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 36,132 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.91 | 94,402 |
| Arctic Ocean Countries | 0 | - | 4.95 | 70,988 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,478 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 95,131 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 60,575 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,491 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 189,318 |
| World Countries - Blind Typing | 0 | - | 5.00 | 69,644 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 41,601 |
| Largest Countries By Category | 0 | - | 4.97 | 142,774 |
| Countries by Countries | 0 | - | 4.93 | 53,460 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,957,552 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,490 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 336,084 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 347,364 |
| Island Countries Quiz | 0 | - | 4.99 | 633,124 |
| Biggest Countries by Area | 0 | - | 4.99 | 915,762 |
| Northernmost Countries | 0 | - | 4.98 | 323,177 |
| Countries of North America Quiz | 0 | - | 5.00 | 857,522 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,400 |
| Countries with Megacities | 0 | - | 4.99 | 192,013 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,916 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,724 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 92,057 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 61,634 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 242,205 |
| Countries by Official Language | 0 | - | 4.94 | 152,169 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.89 | 243,152 |
| Countries in their Native Language | 0 | - | 4.97 | 175,466 |
| Independence from Whom | 0 | - | 4.99 | 180,614 |
| Subdivisions by Country | 0 | - | 4.84 | 45,940 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 110,165 |
| Megadiverse Countries | 0 | - | 4.94 | 123,937 |
| Countries With the Most English Speakers | 0 | - | 4.84 | 88,434 |
| Countries with Multiple Big Islands | 0 | - | 4.89 | 105,410 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.85 | 46,852 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 128,805 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 48,031 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 75,099 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.96 | 143,426 |
| Countries with Multiple Populous Islands | 0 | - | 4.83 | 76,019 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,673 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 41,963 |
| Landmarks of Countries #1 | 0 | - | 4.82 | 100,365 |
| Countries Furthest from the United States | 0 | - | 4.89 | 70,801 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,270 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 57,203 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,938 |
| Southernmost Countries of the World | 0 | - | 4.99 | 203,139 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 89,214 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,971 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,472 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 85,959 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.82 | 70,072 |
| Countries with the Most Prisoners | 0 | - | 4.91 | 84,472 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 52,579 |
| Widest Countries East to West | 0 | - | 4.91 | 117,800 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,500 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 156,540 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 91,716 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.95 | 84,072 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 116,888 |
| Countries with the Most Desert | 0 | - | 4.91 | 103,555 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 66,055 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.85 | 31,633 |
| Countries with Double Letters | 0 | - | 4.96 | 64,788 |
| Countries that End in N | 0 | - | 4.94 | 129,430 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 225,524 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 171,565 |
| Countries with W | 0 | - | 4.97 | 120,099 |
| Countries with Z | 0 | - | 4.98 | 240,089 |
| Countries with Letters Missing | 0 | - | 4.98 | 153,095 |
| Countries That End in U | 0 | - | 4.93 | 105,942 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 86,743 |
| Countries that End in O | 0 | - | 4.90 | 145,682 |
| Countries that End in R | 0 | - | 4.85 | 95,668 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,353 |
| Countries Ending in "IA" | 0 | - | 4.99 | 168,055 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 153,939 |
| Countries by Last Two Letters | 0 | - | 4.89 | 114,524 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 127,675 |
| Countries That End in Y | 0 | - | 4.89 | 160,339 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 158,408 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.89 | 118,935 |
| Countries that End in I | 0 | - | 4.90 | 113,749 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 147,274 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.97 | 86,974 |
| Countries That End in NIA | 0 | - | 4.91 | 99,696 |
| Countries That End in BIA | 0 | - | 4.91 | 124,506 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.91 | 151,248 |
| Countries Whose Names Start with Saint | 0 | - | 4.82 | 108,360 |
| Countries That End in RIA | 0 | - | 4.83 | 99,516 |
| Most Common Words in Official Country Names | 0 | - | 4.84 | 99,049 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 196,550 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 117,539 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 108,198 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 75,187 |
| Countries with a Unique Last Letter | 0 | - | 4.92 | 90,740 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 38,862 |
| Countries that End in L | 0 | - | 4.94 | 132,560 |
| "Land" Countries | 0 | - | 4.98 | 286,084 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 186,320 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 64,941 |
| City to Country Quiz #1 | 0 | - | 4.93 | 133,171 |
| City to Country Quiz #3 | 0 | - | 4.85 | 98,960 |
| 45 European Countries, 45 Cities | 0 | - | 4.96 | 70,520 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 204,709 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 155,979 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 114,999 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 130,626 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 190,761 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 138,946 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.85 | 65,114 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.85 | 90,911 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,384 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 54,845 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,291,694 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,493 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,004,300 |
| One Border Countries | 0 | - | 4.97 | 403,348 |
| Countries With One Word and Three A's | 0 | - | 4.88 | 29,596 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,315,906 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,606 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,728 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 107,387 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,028 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 63,769 |
| Countries by National Anthem | 0 | - | 4.95 | 61,367 |
| NATO Countries Quiz | 0 | - | 4.98 | 221,081 |
| EU Countries Quiz | 0 | - | 4.99 | 224,067 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 142,205 |
| Natural Features of Countries #1 | 0 | - | 4.84 | 76,802 |
| Countries That Use the Euro | 0 | - | 4.93 | 59,823 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 222,183 |
| Countries with Nuclear Weapons | 0 | - | 4.88 | 214,303 |
| German-Speaking Countries | 0 | - | 4.90 | 116,680 |
| Countries with Wild Tigers | 0 | - | 4.96 | 109,707 |
| Countries with Wild Penguins | 0 | - | 4.89 | 89,137 |
| Solve the Secret Country #1 | 0 | - | 4.96 | 124,840 |
| Top Five Countries by Religion | 0 | - | 4.88 | 137,680 |
| Solve the Secret Country #2 | 0 | - | 4.90 | 83,788 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 80,324 |
| Olympic Host Countries | 0 | - | 4.98 | 159,083 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 96,588 |
| Anagram Chain - Countries | 0 | - | 4.99 | 94,035 |
| 10 Easternmost Countries in Europe | 0 | - | 4.82 | 89,402 |
| Countries with the Most Elite Universities | 0 | - | 4.93 | 96,790 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 225,304 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 94,511 |
| Countries with Fjords | 0 | - | 4.93 | 77,023 |
| The Only European Country ... | 0 | - | 4.94 | 173,385 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.89 | 77,657 |
| Countries where the Sea Freezes | 0 | - | 4.89 | 79,990 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 182,663 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.92 | 56,634 |
| Largest Countries Without Deserts | 0 | - | 4.82 | 64,962 |
| Countries with the Most Airports | 0 | - | 4.96 | 77,753 |
| Countries with NO Military | 0 | - | 4.97 | 47,939 |
| Countries of the World in 1900 | 0 | - | 4.88 | 63,222 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 166,556 |
