| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 39,934,507 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 311,569 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,650 |
| Himalayan Countries | 0 | - | 4.95 | 100,056 |
| 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 | 100,632 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,969 |
| 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 | 48,121 |
| 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 | 47,003 |
| 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 | 92,703 |
| 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 | 48,075 |
| 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 | 60,574 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,489 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 189,316 |
| 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 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,489 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,957,525 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 336,083 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 347,364 |
| Island Countries Quiz | 0 | - | 4.99 | 633,115 |
| Biggest Countries by Area | 0 | - | 4.99 | 915,754 |
| Northernmost Countries | 0 | - | 4.98 | 323,174 |
| Countries of South America | 0 | - | 5.00 | 772,823 |
| Countries of Oceania | 0 | - | 5.00 | 866,830 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,058,228 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,525,843 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,399 |
| Countries with Megacities | 0 | - | 4.99 | 192,011 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,915 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,723 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 92,055 |
| 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 | 243,149 |
| Countries in their Native Language | 0 | - | 4.97 | 175,466 |
| Independence from Whom | 0 | - | 4.99 | 180,613 |
| Subdivisions by Country | 0 | - | 4.84 | 45,939 |
| 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 | 128,804 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 48,031 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 75,097 |
| 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 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,289 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 78,018 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,938 |
| Southernmost Countries of the World | 0 | - | 4.99 | 203,131 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 89,213 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,970 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,471 |
| 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 | 84,471 |
| 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 | 84,071 |
| 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 | 120,098 |
| Countries with Z | 0 | - | 4.98 | 240,088 |
| Countries with Letters Missing | 0 | - | 4.98 | 153,092 |
| 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 | 118,934 |
| 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 | 86,973 |
| 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 | 196,548 |
| 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 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,045 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 38,861 |
| Countries that End in L | 0 | - | 4.94 | 132,560 |
| "Land" Countries | 0 | - | 4.98 | 286,082 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 186,319 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 64,941 |
| City to Country Quiz #1 | 0 | - | 4.93 | 133,170 |
| 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 | 204,708 |
| 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 | 138,945 |
| 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 | 1,291,688 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,490 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,004,277 |
| One Border Countries | 0 | - | 4.97 | 403,347 |
| Countries With One Word and Three A's | 0 | - | 4.88 | 29,596 |
| Top-Producing Countries | 0 | - | 4.61 | 99,270 |
| Country Codes Quiz | 0 | - | 4.42 | 76,215 |
| Countries on the Equator | 0 | - | 4.80 | 122,084 |
| Members of the Arab League | 0 | - | 4.69 | 58,283 |
| Coffee Producing Countries | 0 | - | 4.76 | 53,340 |
| Separatist Movements | 0 | - | 4.41 | 42,084 |
| Countries with the Best Passports | 0 | - | 4.79 | 69,537 |
| Prime Meridian Countries | 0 | - | 4.50 | 51,553 |
| Next Country Alphabetically | 0 | - | 4.60 | 67,918 |
| Countries 197 to 205 | 0 | - | 4.76 | 55,328 |
| Easternmost Countries | 0 | - | 4.63 | 60,031 |
| Countries that Use the Peso | 0 | - | 4.80 | 45,838 |
| Countries With the Most ISIS Fighters | 0 | - | 4.60 | 36,605 |
| Top 10 Most Famous Island Countries | 0 | - | 4.68 | 96,958 |
| Indochina Countries | 0 | - | 4.75 | 62,201 |
| Atlantic Ocean Island Countries | 0 | - | 4.49 | 46,677 |
| Countries With the Most Conflict Deaths | 0 | - | 4.60 | 89,967 |
| Highest Foreign Aid Recipients | 0 | - | 4.63 | 42,069 |
| Pacific Ocean Island Countries | 0 | - | 4.47 | 54,697 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.63 | 45,526 |
| Countries that are the Source of Refugees | 0 | - | 4.63 | 55,746 |
| Most Populous Countries By Category | 0 | - | 4.45 | 60,587 |
| Countries with the Most Turkic People | 0 | - | 4.68 | 41,422 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.62 | 44,213 |
| Top 50 Countries by Area - In Order | 0 | - | 4.62 | 65,672 |
| Countries with the Most Coral Reefs | 0 | - | 4.60 | 37,053 |
| Countries Without a U.S. Embassy | 0 | - | 4.56 | 41,304 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.69 | 48,686 |
| Countries with the Most Light Pollution | 0 | - | 4.50 | 43,653 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,315,876 |
| Boundary Waters | 0 | - | 4.92 | 80,051 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 72,912 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,606 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,727 |
| 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 |
