| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 39,921,965 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 311,480 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,603 |
| Himalayan Countries | 0 | - | 4.95 | 99,997 |
| Andean Countries | 0 | - | 4.92 | 55,446 |
| Countries with the Oldest Median Age | 0 | - | 4.88 | 56,375 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 47,611 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 100,613 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,958 |
| Danube Countries | 0 | - | 4.97 | 55,906 |
| Countries With an "Ish" Demonym | 0 | - | 4.96 | 90,985 |
| Countries With an "Ese" Demonym | 0 | - | 4.95 | 64,282 |
| Countries with the Worst Passports | 0 | - | 4.88 | 48,110 |
| Countries with the Most Immigrants | 0 | - | 4.84 | 107,342 |
| European Landlocked Countries | 0 | - | 4.99 | 114,084 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,039 |
| Countries with the Most Species | 0 | - | 4.99 | 88,910 |
| Tropic of Cancer Countries | 0 | - | 4.93 | 44,233 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,592 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 46,985 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 58,160 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 48,173 |
| Countries in the Alps | 0 | - | 4.85 | 100,814 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 83,889 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 84,503 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 70,662 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,118 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 92,685 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.88 | 86,396 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 88,419 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,364 |
| Biggest Country by Body of Water | 0 | - | 4.97 | 44,766 |
| Countries with the Most Container Port Traffic | 0 | - | 4.93 | 53,625 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.90 | 68,406 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 48,068 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 36,126 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.91 | 94,390 |
| Arctic Ocean Countries | 0 | - | 4.95 | 70,976 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,469 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 95,112 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 60,557 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,478 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 189,236 |
| World Countries - Blind Typing | 0 | - | 5.00 | 69,620 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 41,596 |
| Largest Countries By Category | 0 | - | 4.97 | 142,741 |
| Countries by Countries | 0 | - | 4.93 | 53,446 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,471 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,956,046 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 336,037 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 347,266 |
| Island Countries Quiz | 0 | - | 4.99 | 632,839 |
| Biggest Countries by Area | 0 | - | 4.99 | 915,557 |
| Northernmost Countries | 0 | - | 4.98 | 323,129 |
| Countries of South America | 0 | - | 5.00 | 772,551 |
| Countries of Oceania | 0 | - | 5.00 | 866,477 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,056,792 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,524,946 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,373 |
| Countries with Megacities | 0 | - | 4.99 | 191,965 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,875 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,701 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 92,025 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 61,620 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 242,152 |
| Countries by Official Language | 0 | - | 4.94 | 152,148 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.89 | 243,062 |
| Countries in their Native Language | 0 | - | 4.97 | 175,434 |
| Independence from Whom | 0 | - | 4.99 | 180,561 |
| Subdivisions by Country | 0 | - | 4.84 | 45,932 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 110,131 |
| Megadiverse Countries | 0 | - | 4.94 | 123,928 |
| Countries With the Most English Speakers | 0 | - | 4.84 | 88,406 |
| Countries with Multiple Big Islands | 0 | - | 4.89 | 105,399 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.85 | 46,850 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 128,780 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 48,027 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 75,069 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.96 | 143,390 |
| Countries with Multiple Populous Islands | 0 | - | 4.83 | 76,009 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,667 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 41,942 |
| Landmarks of Countries #1 | 0 | - | 4.82 | 100,353 |
| Countries Furthest from the United States | 0 | - | 4.89 | 70,795 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,267 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 57,192 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,277 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 77,994 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,924 |
| Southernmost Countries of the World | 0 | - | 4.99 | 202,907 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 89,192 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,957 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,436 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 85,950 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.82 | 70,058 |
| Countries with the Most Prisoners | 0 | - | 4.91 | 84,456 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 52,561 |
| Widest Countries East to West | 0 | - | 4.91 | 117,784 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,498 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 156,519 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 91,707 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.95 | 84,059 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 116,868 |
| Countries with the Most Desert | 0 | - | 4.91 | 103,545 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 66,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.85 | 31,630 |
| Countries with Double Letters | 0 | - | 4.96 | 64,736 |
| Countries that End in N | 0 | - | 4.94 | 129,409 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 225,489 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 171,544 |
| Countries with W | 0 | - | 4.97 | 120,087 |
| Countries with Z | 0 | - | 4.98 | 240,050 |
| Countries with Letters Missing | 0 | - | 4.98 | 152,952 |
| Countries That End in U | 0 | - | 4.93 | 105,932 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 86,713 |
| Countries that End in O | 0 | - | 4.90 | 145,660 |
| Countries that End in R | 0 | - | 4.85 | 95,661 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,346 |
| Countries Ending in "IA" | 0 | - | 4.99 | 168,022 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 153,920 |
| Countries by Last Two Letters | 0 | - | 4.89 | 114,513 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 127,657 |
| Countries That End in Y | 0 | - | 4.89 | 160,332 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 158,384 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.89 | 118,914 |
| Countries that End in I | 0 | - | 4.90 | 113,744 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 147,241 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.97 | 86,950 |
| Countries That End in NIA | 0 | - | 4.91 | 99,689 |
| Countries That End in BIA | 0 | - | 4.91 | 124,486 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.91 | 151,232 |
| Countries Whose Names Start with Saint | 0 | - | 4.82 | 108,346 |
| Countries That End in RIA | 0 | - | 4.83 | 99,506 |
| Most Common Words in Official Country Names | 0 | - | 4.84 | 99,035 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 196,492 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 117,522 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 108,176 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 75,160 |
| Countries with a Unique Last Letter | 0 | - | 4.92 | 90,722 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,025 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 38,840 |
| Countries that End in L | 0 | - | 4.94 | 132,546 |
| "Land" Countries | 0 | - | 4.98 | 286,055 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 186,292 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 64,933 |
| City to Country Quiz #1 | 0 | - | 4.93 | 133,155 |
| City to Country Quiz #3 | 0 | - | 4.85 | 98,950 |
| 45 European Countries, 45 Cities | 0 | - | 4.96 | 70,507 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 204,679 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 155,955 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 114,984 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 130,611 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 190,732 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 138,936 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.85 | 65,108 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.85 | 90,900 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,373 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 54,836 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,291,486 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,466 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,003,602 |
| One Border Countries | 0 | - | 4.97 | 403,305 |
| Countries With One Word and Three A's | 0 | - | 4.88 | 29,579 |
| Top-Producing Countries | 0 | - | 4.61 | 99,261 |
| Country Codes Quiz | 0 | - | 4.42 | 76,207 |
| Countries on the Equator | 0 | - | 4.80 | 122,072 |
| Members of the Arab League | 0 | - | 4.69 | 58,275 |
| Coffee Producing Countries | 0 | - | 4.76 | 53,336 |
| Separatist Movements | 0 | - | 4.41 | 42,080 |
| Countries with the Best Passports | 0 | - | 4.79 | 69,518 |
| Prime Meridian Countries | 0 | - | 4.50 | 51,550 |
| Next Country Alphabetically | 0 | - | 4.60 | 67,913 |
| Countries 197 to 205 | 0 | - | 4.76 | 55,311 |
| Easternmost Countries | 0 | - | 4.63 | 60,027 |
| Countries that Use the Peso | 0 | - | 4.80 | 45,833 |
| Countries With the Most ISIS Fighters | 0 | - | 4.60 | 36,601 |
| Top 10 Most Famous Island Countries | 0 | - | 4.68 | 96,938 |
| Indochina Countries | 0 | - | 4.75 | 62,194 |
| Atlantic Ocean Island Countries | 0 | - | 4.49 | 46,673 |
| Countries With the Most Conflict Deaths | 0 | - | 4.60 | 89,956 |
| Highest Foreign Aid Recipients | 0 | - | 4.63 | 42,065 |
| Pacific Ocean Island Countries | 0 | - | 4.47 | 54,694 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.63 | 45,523 |
| Countries that are the Source of Refugees | 0 | - | 4.63 | 55,735 |
| Most Populous Countries By Category | 0 | - | 4.45 | 60,578 |
| Countries with the Most Turkic People | 0 | - | 4.68 | 41,417 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.62 | 44,200 |
| Top 50 Countries by Area - In Order | 0 | - | 4.62 | 65,662 |
| Countries with the Most Coral Reefs | 0 | - | 4.60 | 37,047 |
| Countries Without a U.S. Embassy | 0 | - | 4.56 | 41,294 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.69 | 48,675 |
| Countries with the Most Light Pollution | 0 | - | 4.50 | 43,646 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,314,925 |
| Boundary Waters | 0 | - | 4.92 | 80,045 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 72,888 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,594 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,692 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 107,371 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,016 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 63,758 |
