| Landlocked Countries Quiz | 0 | - | 4.99 | 403,731 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,106,635 |
| Sahara Desert Countries | 0 | - | 4.98 | 156,062 |
| Himalayan Countries | 0 | - | 4.95 | 131,458 |
| Andean Countries | 0 | - | 4.94 | 80,752 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 60,587 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 120,177 |
| Coffee Producing Countries | 0 | - | 4.81 | 64,047 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 63,080 |
| Danube Countries | 0 | - | 4.97 | 63,361 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 100,329 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 84,332 |
| Countries with the Worst Passports | 0 | - | 4.93 | 80,327 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 144,976 |
| European Landlocked Countries | 0 | - | 4.99 | 144,222 |
| Partially Recognized Countries | 0 | - | 4.98 | 103,185 |
| Countries with the Most Species | 0 | - | 4.99 | 94,301 |
| Countries 197 to 205 | 0 | - | 4.87 | 67,581 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 52,763 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,940 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,159 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 71,775 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 55,987 |
| Countries in the Alps | 0 | - | 4.87 | 115,039 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 93,413 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 102,956 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,277 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 94,015 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 113,884 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 94,175 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 98,020 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 51,874 |
| Largest Country by Body of Water | 0 | - | 4.96 | 49,587 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,039 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 52,646 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,454 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 102,463 |
| Arctic Ocean Countries | 0 | - | 4.95 | 77,880 |
| Countries with the Most Grassland | 0 | - | 4.93 | 75,841 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 114,614 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 66,773 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 58,507 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 42,964 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 233,915 |
| World Countries - Blind Typing | 0 | - | 5.00 | 102,478 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 46,861 |
| Largest Countries By Category | 0 | - | 4.97 | 154,995 |
| Countries by Countries | 0 | - | 4.96 | 61,098 |
| Country Flags with the Most White | 0 | - | 4.87 | 135,738 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,572 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,021 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 86,621 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,643,242 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 368,708 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 395,121 |
| Island Countries Quiz | 0 | - | 4.99 | 703,339 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,025,610 |
| Northernmost Countries | 0 | - | 4.99 | 351,550 |
| Countries of South America | 0 | - | 5.00 | 899,391 |
| Countries of Oceania | 0 | - | 5.00 | 1,020,606 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,812,345 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,956 |
| Countries with Megacities | 0 | - | 4.99 | 237,012 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 194,130 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 110,264 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,814 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,945 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 314,903 |
| Countries by Official Language | 0 | - | 4.95 | 190,066 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 289,946 |
| Countries in their Native Language | 0 | - | 4.99 | 194,042 |
| Independence from Whom | 0 | - | 4.99 | 206,635 |
| Subdivisions by Country | 0 | - | 4.86 | 49,619 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 128,439 |
| Megadiverse Countries | 0 | - | 4.97 | 133,076 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 127,746 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,427 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 124,217 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,512 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 159,602 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,246 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 91,091 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 152,076 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 94,438 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,353 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 73,195 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 106,569 |
| Countries Furthest from the United States | 0 | - | 4.94 | 87,814 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,901 |
| Straight Shot to the Arctic Circle | 0 | - | 4.87 | 74,016 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,287 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,335,703 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 105,475 |
| World Map Quiz | 0 | - | 4.85 | 61,756 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 147,522 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 104,883 |
| Southernmost Countries of the World | 0 | - | 4.99 | 224,092 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 102,574 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 120,441 |
| Countries With the Most Languages | 0 | - | 4.89 | 196,520 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 108,514 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 91,912 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 97,132 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 60,231 |
| Tallest Countries North to South | 0 | - | 4.83 | 118,380 |
| Widest Countries East to West | 0 | - | 4.92 | 127,643 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,936 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 183,865 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,921 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 92,858 |
| Largest Countries as a Percent of Continent | 0 | - | 4.98 | 146,467 |
| Countries with the Most Desert | 0 | - | 4.93 | 125,902 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,771 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,326 |
| Countries with Double Letters | 0 | - | 4.96 | 89,857 |
| Countries that End in N | 0 | - | 4.93 | 152,964 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 254,611 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 207,084 |
| Countries with W | 0 | - | 4.97 | 155,300 |
| Countries with Z | 0 | - | 4.98 | 283,533 |
| Countries with Letters Missing | 0 | - | 4.97 | 181,868 |
| Countries That End in U | 0 | - | 4.95 | 117,789 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 106,168 |
| Countries that End in O | 0 | - | 4.92 | 157,124 |
| Countries that End in R | 0 | - | 4.84 | 101,712 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,038 |
| Countries Ending in "IA" | 0 | - | 4.99 | 204,571 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 167,687 |
| Countries by Last Two Letters | 0 | - | 4.87 | 133,330 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 139,321 |
| Countries That End in Y | 0 | - | 4.91 | 184,197 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 194,478 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 150,037 |
| Countries that End in I | 0 | - | 4.92 | 118,916 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 180,231 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 94,335 |
| Countries That End in NIA | 0 | - | 4.92 | 107,963 |
| Countries That End in BIA | 0 | - | 4.92 | 146,372 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 164,443 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 117,310 |
| Countries That End in RIA | 0 | - | 4.92 | 124,983 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 108,747 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 222,321 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 130,927 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 123,160 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 88,740 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 73,156 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 51,023 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 101,434 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 123,106 |
| Countries that are Free from U.S.A. | 0 | - | 4.88 | 48,073 |
| Countries with the Word "And" | 0 | - | 4.99 | 114,731 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 51,276 |
| Countries that End in L | 0 | - | 4.94 | 154,477 |
| "Land" Countries | 0 | - | 4.98 | 304,302 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 204,594 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,616 |
| City to Country Quiz #1 | 0 | - | 4.97 | 153,825 |
| City to Country Quiz #3 | 0 | - | 4.88 | 107,762 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 77,496 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 225,154 |
| Five Poorest Countries by Continent | 0 | - | 4.92 | 197,009 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 124,718 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 160,394 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 220,722 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 149,962 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 70,000 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 107,299 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 85,775 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 61,309 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,416,837 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 372,775 |
| One Border Countries | 0 | - | 4.97 | 456,920 |
| Top Producing Countries | 0 | - | 4.63 | 115,479 |
| Country Codes Quiz | 0 | - | 4.45 | 81,698 |
| Countries on the Equator | 0 | - | 4.61 | 139,396 |
| Members of the Arab League | 0 | - | 4.78 | 75,247 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,145 |
| Separatist Movements | 0 | - | 4.44 | 45,313 |
| Countries with the Best Passports | 0 | - | 4.75 | 83,757 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,391 |
| Next Country Alphabetically | 0 | - | 4.70 | 85,132 |
| Westernmost Countries | 0 | - | 4.50 | 49,206 |
| Easternmost Countries | 0 | - | 4.74 | 62,370 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,190 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 106,899 |
| Indochina Countries | 0 | - | 4.73 | 65,541 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,371 |
| Countries With the Most Conflict Deaths | 0 | - | 4.62 | 95,332 |
| Highest Foreign Aid Recipients | 0 | - | 4.68 | 43,737 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,779 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,928 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,045 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,085 |
| Countries 206 to 242 | 0 | - | 4.70 | 33,412 |
| Most Populous Countries By Category | 0 | - | 4.55 | 84,319 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 45,016 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,795 |
| Flyover Countries | 0 | - | 4.64 | 50,168 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 72,634 |
