| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 39,882,778 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 311,081 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,395 |
| Himalayan Countries | 0 | - | 4.95 | 99,814 |
| Andean Countries | 0 | - | 4.92 | 55,340 |
| Countries with the Oldest Median Age | 0 | - | 4.88 | 56,263 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 47,528 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 100,505 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,902 |
| Danube Countries | 0 | - | 4.97 | 55,877 |
| Countries With an "Ish" Demonym | 0 | - | 4.96 | 90,956 |
| Countries With an "Ese" Demonym | 0 | - | 4.95 | 64,254 |
| Countries with the Worst Passports | 0 | - | 4.88 | 48,064 |
| Countries with the Most Immigrants | 0 | - | 4.84 | 107,290 |
| European Landlocked Countries | 0 | - | 4.99 | 114,059 |
| Partially Recognized Countries | 0 | - | 4.98 | 87,982 |
| Countries with the Most Species | 0 | - | 4.99 | 88,890 |
| Tropic of Cancer Countries | 0 | - | 4.93 | 44,214 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,579 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 46,916 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 58,142 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 48,130 |
| Countries in the Alps | 0 | - | 4.85 | 100,752 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 83,827 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 84,435 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 70,627 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,074 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 92,347 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.88 | 86,364 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 88,379 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,324 |
| Biggest Country by Body of Water | 0 | - | 4.97 | 44,745 |
| Countries with the Most Container Port Traffic | 0 | - | 4.93 | 53,588 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 68,347 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 48,036 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 36,103 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.91 | 94,280 |
| Arctic Ocean Countries | 0 | - | 4.95 | 70,938 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,425 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 95,015 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 60,529 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,447 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 189,031 |
| World Countries - Blind Typing | 0 | - | 5.00 | 69,514 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 41,566 |
| Largest Countries By Category | 0 | - | 4.97 | 142,657 |
| Countries by Countries | 0 | - | 4.93 | 53,402 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,408 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,951,986 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 335,881 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 346,976 |
| Island Countries Quiz | 0 | - | 4.99 | 632,406 |
| Biggest Countries by Area | 0 | - | 4.99 | 914,975 |
| Northernmost Countries | 0 | - | 4.98 | 322,937 |
| Countries of South America | 0 | - | 5.00 | 771,656 |
| Countries of Oceania | 0 | - | 5.00 | 865,384 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,052,842 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,522,767 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,257 |
| Countries with Megacities | 0 | - | 4.99 | 191,790 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,746 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,629 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 91,929 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 61,553 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 241,993 |
| Countries by Official Language | 0 | - | 4.94 | 152,073 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.88 | 242,796 |
| Countries in their Native Language | 0 | - | 4.97 | 175,319 |
| Independence from Whom | 0 | - | 4.99 | 180,425 |
| Subdivisions by Country | 0 | - | 4.84 | 45,917 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 110,052 |
| Megadiverse Countries | 0 | - | 4.94 | 123,880 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 88,326 |
| Countries with Multiple Big Islands | 0 | - | 4.89 | 105,356 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.85 | 46,823 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 128,555 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 48,002 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 75,014 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.96 | 143,239 |
| Countries with Multiple Populous Islands | 0 | - | 4.83 | 75,960 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,655 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 41,874 |
| Landmarks of Countries #1 | 0 | - | 4.82 | 100,319 |
| Countries Furthest from the United States | 0 | - | 4.89 | 70,769 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,254 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 57,160 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,243 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 77,865 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,870 |
| Southernmost Countries of the World | 0 | - | 4.99 | 201,592 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 89,122 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,864 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,278 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 85,895 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.82 | 70,007 |
| Countries with the Most Prisoners | 0 | - | 4.91 | 84,365 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 52,492 |
| Widest Countries East to West | 0 | - | 4.91 | 117,732 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,485 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 156,457 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 91,685 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.95 | 84,016 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 116,820 |
| Countries with the Most Desert | 0 | - | 4.91 | 103,503 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 66,042 |
| Countries with Double Letters | 0 | - | 4.96 | 64,503 |
| Countries that End in N | 0 | - | 4.94 | 129,328 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 225,362 |
| Countries with Six Letters Quiz | 0 | - | 4.92 | 171,456 |
| Countries with W | 0 | - | 4.97 | 120,026 |
| Countries with Z | 0 | - | 4.98 | 239,938 |
| Countries with Letters Missing | 0 | - | 4.98 | 152,877 |
| Countries That End in U | 0 | - | 4.93 | 105,893 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 86,649 |
| Countries that End in O | 0 | - | 4.90 | 145,617 |
| Countries that End in R | 0 | - | 4.85 | 95,637 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,320 |
| Countries Ending in "IA" | 0 | - | 4.99 | 167,934 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 153,856 |
| Countries by Last Two Letters | 0 | - | 4.89 | 114,460 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 127,605 |
| Countries That End in Y | 0 | - | 4.89 | 160,288 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 158,289 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.88 | 118,844 |
| Countries that End in I | 0 | - | 4.90 | 113,717 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 147,155 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.97 | 86,921 |
| Countries That End in NIA | 0 | - | 4.91 | 99,654 |
| Countries That End in BIA | 0 | - | 4.91 | 124,441 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.91 | 151,151 |
| Countries Whose Names Start with Saint | 0 | - | 4.82 | 108,292 |
| Countries That End in RIA | 0 | - | 4.83 | 99,475 |
| Most Common Words in Official Country Names | 0 | - | 4.84 | 98,993 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 196,356 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 117,444 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 108,095 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 75,094 |
| Countries with a Unique Last Letter | 0 | - | 4.92 | 90,666 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 94,966 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 38,784 |
| Countries that End in L | 0 | - | 4.94 | 132,492 |
| "Land" Countries | 0 | - | 4.98 | 285,950 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 186,212 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 64,928 |
| City to Country Quiz #1 | 0 | - | 4.93 | 133,107 |
| City to Country Quiz #3 | 0 | - | 4.85 | 98,914 |
| 45 European Countries, 45 Cities | 0 | - | 4.96 | 70,464 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 204,599 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 155,906 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 114,929 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 130,558 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 190,652 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 138,873 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.85 | 65,095 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.85 | 90,871 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,352 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 54,806 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,290,802 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,336 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,001,382 |
| One Border Countries | 0 | - | 4.97 | 403,087 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.85 | 31,620 |
| Countries With One Word and Three A's | 0 | - | 4.88 | 29,537 |
| Top-Producing Countries | 0 | - | 4.61 | 99,244 |
| Country Codes Quiz | 0 | - | 4.42 | 76,174 |
| Countries on the Equator | 0 | - | 4.80 | 122,038 |
| Members of the Arab League | 0 | - | 4.69 | 58,262 |
| Coffee Producing Countries | 0 | - | 4.76 | 53,330 |
| Separatist Movements | 0 | - | 4.41 | 42,065 |
| Countries with the Best Passports | 0 | - | 4.79 | 69,477 |
| Prime Meridian Countries | 0 | - | 4.50 | 51,540 |
| Next Country Alphabetically | 0 | - | 4.60 | 67,885 |
| Countries 197 to 205 | 0 | - | 4.76 | 55,286 |
| Easternmost Countries | 0 | - | 4.63 | 60,009 |
| Countries that Use the Peso | 0 | - | 4.80 | 45,822 |
| Countries With the Most ISIS Fighters | 0 | - | 4.60 | 36,579 |
| Top 10 Most Famous Island Countries | 0 | - | 4.68 | 96,891 |
| Indochina Countries | 0 | - | 4.75 | 62,171 |
| Atlantic Ocean Island Countries | 0 | - | 4.49 | 46,663 |
| Countries With the Most Conflict Deaths | 0 | - | 4.60 | 89,925 |
| Highest Foreign Aid Recipients | 0 | - | 4.63 | 42,051 |
| Pacific Ocean Island Countries | 0 | - | 4.47 | 54,681 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.63 | 45,512 |
| Countries that are the Source of Refugees | 0 | - | 4.63 | 55,713 |
| Most Populous Countries By Category | 0 | - | 4.45 | 60,552 |
| Countries with the Most Turkic People | 0 | - | 4.68 | 41,398 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.62 | 44,180 |
| Top 50 Countries by Area - In Order | 0 | - | 4.62 | 65,630 |
| Countries with the Most Coral Reefs | 0 | - | 4.60 | 37,025 |
| Countries Without a U.S. Embassy | 0 | - | 4.56 | 41,257 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.69 | 48,651 |
| Countries with the Most Light Pollution | 0 | - | 4.50 | 43,629 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,311,996 |
| Boundary Waters | 0 | - | 4.92 | 80,017 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 72,825 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,546 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,585 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 107,297 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 88,971 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.95 | 63,719 |
