| Landlocked Countries Quiz | 0 | - | 4.99 | 391,926 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,024,840 |
| Sahara Desert Countries | 0 | - | 4.98 | 150,250 |
| Himalayan Countries | 0 | - | 4.94 | 126,334 |
| Andean Countries | 0 | - | 4.93 | 71,117 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,526 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 116,274 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,865 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,949 |
| Danube Countries | 0 | - | 4.97 | 61,955 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,390 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,949 |
| Countries with the Worst Passports | 0 | - | 4.92 | 76,079 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,547 |
| European Landlocked Countries | 0 | - | 4.99 | 142,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 100,284 |
| Countries with the Most Species | 0 | - | 4.99 | 93,322 |
| Countries 197 to 205 | 0 | - | 4.88 | 65,196 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,177 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,267 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,192 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,706 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,666 |
| Countries in the Alps | 0 | - | 4.86 | 112,351 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,846 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,915 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,217 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 91,971 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 112,205 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,820 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,389 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,683 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,639 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,718 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,861 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,658 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 101,018 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,683 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,521 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 111,425 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,634 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,537 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,949 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 227,231 |
| World Countries - Blind Typing | 0 | - | 5.00 | 98,238 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,877 |
| Largest Countries By Category | 0 | - | 4.97 | 152,814 |
| Countries by Countries | 0 | - | 4.96 | 59,494 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,554 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,029 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 85,062 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,460,679 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,539,247 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 363,511 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 387,575 |
| Island Countries Quiz | 0 | - | 4.99 | 696,263 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,008,268 |
| Northernmost Countries | 0 | - | 4.99 | 345,530 |
| Countries of South America | 0 | - | 5.00 | 877,174 |
| Countries of Oceania | 0 | - | 5.00 | 993,499 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,762,031 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 163,300 |
| Countries with Megacities | 0 | - | 4.99 | 223,004 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 190,009 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,928 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 129,285 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,373 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 304,084 |
| Countries by Official Language | 0 | - | 4.95 | 186,422 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 285,169 |
| Countries in their Native Language | 0 | - | 4.98 | 190,728 |
| Independence from Whom | 0 | - | 4.99 | 202,968 |
| Subdivisions by Country | 0 | - | 4.86 | 49,026 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,979 |
| Megadiverse Countries | 0 | - | 4.97 | 131,406 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 124,352 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,472 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,804 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,600 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,613 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 157,112 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,359 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,947 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,266 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,137 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,675 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 70,021 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,403 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,599 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,080 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,837 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,296 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,291,512 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 101,136 |
| World Map Quiz | 0 | - | 4.85 | 59,359 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,935 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,667 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 100,386 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,993 |
| Countries With the Most Languages | 0 | - | 4.89 | 192,347 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 98,286 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,774 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 94,978 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,105 |
| Tallest Countries North to South | 0 | - | 4.83 | 116,760 |
| Widest Countries East to West | 0 | - | 4.92 | 125,917 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,485 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,794 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,056 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 91,290 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,450 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,282 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,330 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,877 |
| Countries with Double Letters | 0 | - | 4.97 | 86,477 |
| Countries that End in N | 0 | - | 4.93 | 149,919 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 250,491 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 204,026 |
| Countries with W | 0 | - | 4.97 | 152,960 |
| Countries with Z | 0 | - | 4.98 | 280,052 |
| Countries with Letters Missing | 0 | - | 4.97 | 179,497 |
| Countries That End in U | 0 | - | 4.95 | 116,430 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 103,561 |
| Countries that End in O | 0 | - | 4.92 | 155,967 |
| Countries that End in R | 0 | - | 4.84 | 100,985 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,873 |
| Countries Ending in "IA" | 0 | - | 4.99 | 201,116 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,660 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,781 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,697 |
| Countries That End in Y | 0 | - | 4.91 | 183,029 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,968 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 148,161 |
| Countries that End in I | 0 | - | 4.92 | 118,235 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 177,684 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,223 |
| Countries That End in NIA | 0 | - | 4.92 | 106,918 |
| Countries That End in BIA | 0 | - | 4.92 | 144,969 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,641 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,968 |
| Countries That End in RIA | 0 | - | 4.92 | 123,630 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,261 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 218,527 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 128,921 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,919 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,794 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,133 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,765 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,779 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,408 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 47,147 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,428 |
| Countries that End in L | 0 | - | 4.94 | 153,190 |
| "Land" Countries | 0 | - | 4.98 | 301,548 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 199,289 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,317 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,553 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,609 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,327 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 222,365 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 194,597 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,411 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,539 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 218,350 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,718 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,411 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,434 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,278 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,408 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,395,501 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,755 |
| One Border Countries | 0 | - | 4.97 | 448,891 |
| Top Producing Countries | 0 | - | 4.63 | 114,678 |
| Country Codes Quiz | 0 | - | 4.45 | 81,104 |
| Countries on the Equator | 0 | - | 4.70 | 138,546 |
| Members of the Arab League | 0 | - | 4.78 | 74,929 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 68,522 |
| Separatist Movements | 0 | - | 4.44 | 44,847 |
| Countries with the Best Passports | 0 | - | 4.79 | 82,452 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,053 |
| Next Country Alphabetically | 0 | - | 4.70 | 84,309 |
| Westernmost Countries | 0 | - | 4.49 | 48,963 |
| Easternmost Countries | 0 | - | 4.74 | 62,014 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 38,849 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 105,601 |
| Indochina Countries | 0 | - | 4.70 | 65,028 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,173 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 94,791 |
| Highest Foreign Aid Recipients | 0 | - | 4.64 | 43,530 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,500 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,549 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,459 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,475 |
| Countries 206 to 242 | 0 | - | 4.74 | 32,974 |
| Most Populous Countries By Category | 0 | - | 4.56 | 80,884 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 44,505 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,208 |
| Flyover Countries | 0 | - | 4.64 | 49,685 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 71,604 |
| Countries with the Most Coral Reefs | 0 | - | 4.75 | 47,526 |
