| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 39,896,481 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 311,227 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,466 |
| Himalayan Countries | 0 | - | 4.95 | 99,879 |
| Andean Countries | 0 | - | 4.92 | 55,371 |
| Countries with the Oldest Median Age | 0 | - | 4.88 | 56,297 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 47,561 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 100,532 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,924 |
| Danube Countries | 0 | - | 4.97 | 55,884 |
| Countries With an "Ish" Demonym | 0 | - | 4.96 | 90,962 |
| Countries With an "Ese" Demonym | 0 | - | 4.95 | 64,261 |
| Countries with the Worst Passports | 0 | - | 4.88 | 48,078 |
| Countries with the Most Immigrants | 0 | - | 4.84 | 107,312 |
| European Landlocked Countries | 0 | - | 4.99 | 114,069 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,004 |
| Countries with the Most Species | 0 | - | 4.99 | 88,896 |
| Tropic of Cancer Countries | 0 | - | 4.93 | 44,221 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,582 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 46,931 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 58,146 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 48,153 |
| Countries in the Alps | 0 | - | 4.85 | 100,779 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 83,851 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 84,459 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 70,642 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,089 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 92,426 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.88 | 86,374 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 88,391 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,340 |
| Biggest Country by Body of Water | 0 | - | 4.97 | 44,757 |
| Countries with the Most Container Port Traffic | 0 | - | 4.93 | 53,604 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.90 | 68,368 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 48,049 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 36,112 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.91 | 94,361 |
| Arctic Ocean Countries | 0 | - | 4.95 | 70,956 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,437 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 95,037 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 60,537 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,455 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 189,086 |
| World Countries - Blind Typing | 0 | - | 5.00 | 69,535 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 41,580 |
| Largest Countries By Category | 0 | - | 4.97 | 142,692 |
| Countries by Countries | 0 | - | 4.93 | 53,417 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,429 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,953,372 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 335,928 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 347,093 |
| Island Countries Quiz | 0 | - | 4.99 | 632,550 |
| Biggest Countries by Area | 0 | - | 4.99 | 915,185 |
| Northernmost Countries | 0 | - | 4.98 | 323,025 |
| Countries of South America | 0 | - | 5.00 | 772,001 |
| Countries of Oceania | 0 | - | 5.00 | 865,770 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,054,293 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,523,465 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,298 |
| Countries with Megacities | 0 | - | 4.99 | 191,852 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,793 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,653 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 91,954 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 61,575 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 242,052 |
| Countries by Official Language | 0 | - | 4.94 | 152,094 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.89 | 242,887 |
| Countries in their Native Language | 0 | - | 4.97 | 175,355 |
| Independence from Whom | 0 | - | 4.99 | 180,467 |
| Subdivisions by Country | 0 | - | 4.84 | 45,921 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 110,083 |
| Megadiverse Countries | 0 | - | 4.94 | 123,899 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 88,350 |
| Countries with Multiple Big Islands | 0 | - | 4.89 | 105,370 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.85 | 46,834 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 128,725 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 48,013 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 75,032 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.96 | 143,310 |
| Countries with Multiple Populous Islands | 0 | - | 4.83 | 75,977 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,658 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 41,893 |
| Landmarks of Countries #1 | 0 | - | 4.82 | 100,333 |
| 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 | 57,171 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,258 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 77,924 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,897 |
| Southernmost Countries of the World | 0 | - | 4.99 | 202,372 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 89,157 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,910 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,350 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 85,918 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.82 | 70,025 |
| Countries with the Most Prisoners | 0 | - | 4.91 | 84,407 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 52,512 |
| Widest Countries East to West | 0 | - | 4.91 | 117,752 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,487 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 156,479 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 91,692 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.95 | 84,029 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 116,834 |
| Countries with the Most Desert | 0 | - | 4.91 | 103,521 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 66,045 |
| Countries with Double Letters | 0 | - | 4.96 | 64,612 |
| Countries that End in N | 0 | - | 4.94 | 129,360 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 225,409 |
| Countries with Six Letters Quiz | 0 | - | 4.92 | 171,490 |
| Countries with W | 0 | - | 4.97 | 120,056 |
| Countries with Z | 0 | - | 4.98 | 239,978 |
| Countries with Letters Missing | 0 | - | 4.98 | 152,893 |
| Countries That End in U | 0 | - | 4.93 | 105,907 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 86,675 |
| Countries that End in O | 0 | - | 4.90 | 145,634 |
| Countries that End in R | 0 | - | 4.85 | 95,648 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,331 |
| Countries Ending in "IA" | 0 | - | 4.99 | 167,964 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 153,882 |
| Countries by Last Two Letters | 0 | - | 4.89 | 114,483 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 127,627 |
| Countries That End in Y | 0 | - | 4.89 | 160,301 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 158,325 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.89 | 118,869 |
| Countries that End in I | 0 | - | 4.90 | 113,731 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 147,180 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.97 | 86,929 |
| Countries That End in NIA | 0 | - | 4.91 | 99,667 |
| Countries That End in BIA | 0 | - | 4.91 | 124,454 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.91 | 151,188 |
| Countries Whose Names Start with Saint | 0 | - | 4.82 | 108,312 |
| Countries That End in RIA | 0 | - | 4.83 | 99,490 |
| Most Common Words in Official Country Names | 0 | - | 4.84 | 99,012 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 196,405 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 117,471 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 108,130 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 75,114 |
| Countries with a Unique Last Letter | 0 | - | 4.92 | 90,684 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 94,984 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 38,799 |
| Countries that End in L | 0 | - | 4.94 | 132,508 |
| "Land" Countries | 0 | - | 4.98 | 285,992 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 186,240 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 64,931 |
| City to Country Quiz #1 | 0 | - | 4.93 | 133,123 |
| City to Country Quiz #3 | 0 | - | 4.85 | 98,923 |
| 45 European Countries, 45 Cities | 0 | - | 4.96 | 70,483 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 204,629 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 155,923 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 114,952 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 130,581 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 190,675 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 138,894 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.85 | 65,096 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.85 | 90,880 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,360 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 54,818 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,291,040 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,382 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,002,135 |
| One Border Countries | 0 | - | 4.97 | 403,175 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.85 | 31,624 |
| Countries With One Word and Three A's | 0 | - | 4.88 | 29,555 |
| Top-Producing Countries | 0 | - | 4.61 | 99,248 |
| Country Codes Quiz | 0 | - | 4.42 | 76,188 |
| Countries on the Equator | 0 | - | 4.80 | 122,056 |
| Members of the Arab League | 0 | - | 4.69 | 58,263 |
| Coffee Producing Countries | 0 | - | 4.76 | 53,332 |
| Separatist Movements | 0 | - | 4.41 | 42,070 |
| Countries with the Best Passports | 0 | - | 4.79 | 69,492 |
| Prime Meridian Countries | 0 | - | 4.50 | 51,543 |
| Next Country Alphabetically | 0 | - | 4.60 | 67,900 |
| Countries 197 to 205 | 0 | - | 4.76 | 55,296 |
| 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 | 96,903 |
| Indochina Countries | 0 | - | 4.75 | 62,179 |
| Atlantic Ocean Island Countries | 0 | - | 4.49 | 46,665 |
| Countries With the Most Conflict Deaths | 0 | - | 4.60 | 89,933 |
| Highest Foreign Aid Recipients | 0 | - | 4.63 | 42,055 |
| Pacific Ocean Island Countries | 0 | - | 4.47 | 54,690 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.63 | 45,515 |
| Countries that are the Source of Refugees | 0 | - | 4.63 | 55,721 |
| Most Populous Countries By Category | 0 | - | 4.45 | 60,557 |
| Countries with the Most Turkic People | 0 | - | 4.68 | 41,404 |
| 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 | 37,033 |
| Countries Without a U.S. Embassy | 0 | - | 4.56 | 41,269 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.69 | 48,657 |
| Countries with the Most Light Pollution | 0 | - | 4.50 | 43,636 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,312,998 |
| Boundary Waters | 0 | - | 4.92 | 80,023 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 72,850 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,568 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,619 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 107,324 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 88,987 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 63,737 |
