| Landlocked Countries Quiz | 0 | - | 4.99 | 402,861 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,018,895 |
| Sahara Desert Countries | 0 | - | 4.98 | 155,617 |
| Himalayan Countries | 0 | - | 4.95 | 131,028 |
| Andean Countries | 0 | - | 4.94 | 80,486 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 60,430 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 119,891 |
| Coffee Producing Countries | 0 | - | 4.81 | 63,889 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 62,920 |
| Danube Countries | 0 | - | 4.97 | 63,253 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 100,179 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 84,223 |
| Countries with the Worst Passports | 0 | - | 4.93 | 80,110 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 144,734 |
| European Landlocked Countries | 0 | - | 4.99 | 144,090 |
| Partially Recognized Countries | 0 | - | 4.98 | 102,985 |
| Countries with the Most Species | 0 | - | 4.99 | 94,212 |
| Countries 197 to 205 | 0 | - | 4.87 | 67,367 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 52,716 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,899 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,104 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 71,698 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 55,877 |
| Countries in the Alps | 0 | - | 4.87 | 114,884 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 93,302 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 102,765 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,201 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 93,915 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 113,755 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 93,938 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 97,909 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 51,800 |
| Largest Country by Body of Water | 0 | - | 4.96 | 49,525 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 60,960 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 52,600 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,407 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 102,378 |
| Arctic Ocean Countries | 0 | - | 4.95 | 77,787 |
| Countries with the Most Grassland | 0 | - | 4.93 | 75,730 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 114,359 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 66,677 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 58,446 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 42,845 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 233,412 |
| World Countries - Blind Typing | 0 | - | 5.00 | 102,170 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 46,787 |
| Largest Countries By Category | 0 | - | 4.97 | 154,842 |
| Countries by Countries | 0 | - | 4.96 | 60,978 |
| Country Flags with the Most White | 0 | - | 4.87 | 135,570 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,535 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 46,994 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 86,509 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,635,380 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 368,387 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 394,468 |
| Island Countries Quiz | 0 | - | 4.99 | 702,914 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,024,093 |
| Northernmost Countries | 0 | - | 4.99 | 350,850 |
| Countries of South America | 0 | - | 5.00 | 897,799 |
| Countries of Oceania | 0 | - | 5.00 | 1,018,814 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,808,351 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,578 |
| Countries with Megacities | 0 | - | 4.99 | 231,485 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 193,706 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 110,049 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,479 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,694 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 314,086 |
| Countries by Official Language | 0 | - | 4.95 | 189,828 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 289,647 |
| Countries in their Native Language | 0 | - | 4.99 | 193,833 |
| Independence from Whom | 0 | - | 4.99 | 206,378 |
| Subdivisions by Country | 0 | - | 4.86 | 49,572 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 128,274 |
| Megadiverse Countries | 0 | - | 4.97 | 132,997 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 127,545 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,381 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 123,813 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,473 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 50,032 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 159,408 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,179 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 90,924 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 151,972 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 94,245 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,314 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 73,006 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 106,254 |
| Countries Furthest from the United States | 0 | - | 4.94 | 87,732 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,839 |
| Straight Shot to the Arctic Circle | 0 | - | 4.87 | 73,937 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,168 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,332,782 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 105,185 |
| World Map Quiz | 0 | - | 4.84 | 61,618 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 147,027 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 104,715 |
| Southernmost Countries of the World | 0 | - | 4.99 | 223,843 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 102,434 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 120,323 |
| Countries With the Most Languages | 0 | - | 4.89 | 196,221 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 108,397 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 91,816 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 97,017 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 60,166 |
| Tallest Countries North to South | 0 | - | 4.83 | 118,285 |
| Widest Countries East to West | 0 | - | 4.92 | 127,554 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,901 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 183,732 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,871 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 92,765 |
| Largest Countries as a Percent of Continent | 0 | - | 4.98 | 146,160 |
| Countries with the Most Desert | 0 | - | 4.93 | 125,805 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,746 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,307 |
| Countries with Double Letters | 0 | - | 4.96 | 89,666 |
| Countries that End in N | 0 | - | 4.93 | 152,795 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 254,361 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 206,882 |
| Countries with W | 0 | - | 4.97 | 155,166 |
| Countries with Z | 0 | - | 4.98 | 283,304 |
| Countries with Letters Missing | 0 | - | 4.97 | 181,739 |
| Countries That End in U | 0 | - | 4.95 | 117,709 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 106,008 |
| Countries that End in O | 0 | - | 4.92 | 157,051 |
| Countries that End in R | 0 | - | 4.84 | 101,664 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 153,999 |
| Countries Ending in "IA" | 0 | - | 4.99 | 204,356 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 167,539 |
| Countries by Last Two Letters | 0 | - | 4.87 | 133,244 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 139,206 |
| Countries That End in Y | 0 | - | 4.91 | 184,131 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 194,303 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 149,906 |
| Countries that End in I | 0 | - | 4.93 | 118,866 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 180,074 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 94,277 |
| Countries That End in NIA | 0 | - | 4.92 | 107,881 |
| Countries That End in BIA | 0 | - | 4.92 | 146,264 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 164,314 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 117,210 |
| Countries That End in RIA | 0 | - | 4.92 | 124,894 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 108,668 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 222,033 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 130,778 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 123,002 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 88,603 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 73,070 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 50,936 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 101,096 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 122,999 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 48,012 |
| Countries with the Word "And" | 0 | - | 4.99 | 114,582 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 51,136 |
| Countries that End in L | 0 | - | 4.94 | 154,390 |
| "Land" Countries | 0 | - | 4.98 | 304,138 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 203,809 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,598 |
| City to Country Quiz #1 | 0 | - | 4.97 | 153,758 |
| City to Country Quiz #3 | 0 | - | 4.88 | 107,716 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 77,424 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 224,947 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 196,868 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 124,414 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 160,267 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 220,542 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 149,862 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,943 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 107,255 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 85,744 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 61,248 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,414,908 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 372,256 |
| One Border Countries | 0 | - | 4.98 | 455,598 |
| Top Producing Countries | 0 | - | 4.63 | 115,439 |
| Country Codes Quiz | 0 | - | 4.45 | 81,657 |
| Countries on the Equator | 0 | - | 4.61 | 139,329 |
| Members of the Arab League | 0 | - | 4.78 | 75,229 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,092 |
| Separatist Movements | 0 | - | 4.44 | 45,272 |
| Countries with the Best Passports | 0 | - | 4.75 | 83,660 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,367 |
| Next Country Alphabetically | 0 | - | 4.70 | 85,091 |
| Westernmost Countries | 0 | - | 4.50 | 49,184 |
| Easternmost Countries | 0 | - | 4.74 | 62,341 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,155 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 106,794 |
| Indochina Countries | 0 | - | 4.72 | 65,497 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,360 |
| Countries With the Most Conflict Deaths | 0 | - | 4.62 | 95,291 |
| Highest Foreign Aid Recipients | 0 | - | 4.68 | 43,717 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,749 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,909 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,999 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 60,031 |
| Countries 206 to 242 | 0 | - | 4.70 | 33,371 |
| Most Populous Countries By Category | 0 | - | 4.55 | 84,269 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 44,979 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,744 |
| Flyover Countries | 0 | - | 4.64 | 50,139 |
