| Solve the Secret Country #1 | 0 | - | 4.93 | 167,860 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,133 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,470 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,715 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,117,154 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,649,854 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,868 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,829,244 |
| Landlocked Countries | 0 | - | 4.99 | 425,032 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,035 |
| Countries with Four Letters | 0 | - | 4.99 | 425,449 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,800,056 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,893 |
| Himalayan Countries | 0 | - | 4.93 | 139,965 |
| Andean Countries | 0 | - | 4.94 | 85,286 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,443 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,790 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,017 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,312 |
| Danube Countries | 0 | - | 4.97 | 72,312 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,472 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,752 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,970 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,461 |
| European Landlocked Countries | 0 | - | 4.99 | 147,525 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,179 |
| Countries with the Most Species | 0 | - | 4.99 | 103,518 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,310 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,738 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,849 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,872 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,785 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,277 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,519 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,950 |
| Countries in the Alps | 0 | - | 4.87 | 118,678 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,468 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,725 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,913 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,955 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,874 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,184 |
| Country Chain | 0 | - | 4.96 | 218,331 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,312 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,808 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,367 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,112 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,819 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,689 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,494 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,728 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,826 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,670 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,558 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,680 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,573 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,426 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,980 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,470 |
| Largest Countries By Category | 0 | - | 4.97 | 158,755 |
| Countries by Emojis | 0 | - | 4.99 | 241,677 |
| Countries by Countries | 0 | - | 4.96 | 63,577 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,507 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,513 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,182 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,378 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,653 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,033 |
| Islands by Country #1 | 0 | - | 4.90 | 176,247 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,180 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,495 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,348 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,681 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,814 |
| Name a Valid Country #1 | 0 | - | 4.99 | 294,867 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,926 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,936 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,826 |
| Name a Valid Country #6 | 0 | - | 4.95 | 144,678 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 740,777 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,891 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,479 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,323 |
| Island Countries | 0 | - | 4.99 | 712,297 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,000 |
| Northernmost Countries | 0 | - | 4.99 | 363,689 |
| Countries of South America | 0 | - | 5.00 | 931,718 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,187 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,887,106 |
| "Land" Countries | 0 | - | 4.98 | 338,236 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,651 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,657 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,601 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,038 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,859 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,135 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,343 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,583 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,983 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,927 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,569 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,914 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,487 |
| Random Countries by Borders | 0 | - | 4.99 | 83,003 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,477 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,978 |
| Countries with Megacities | 0 | - | 4.99 | 266,767 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,667 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,017 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,981 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,136 |
| Countries by Official Language | 0 | - | 4.95 | 195,876 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,470 |
| Countries in their Native Language | 0 | - | 4.99 | 199,640 |
| Independence from Whom | 0 | - | 4.99 | 212,917 |
| Subdivisions by Country | 0 | - | 4.87 | 50,589 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,337 |
| Megadiverse Countries | 0 | - | 4.96 | 135,231 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,850 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,508 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,412 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,206 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,512 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,806 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,031 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,537 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,794 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,241 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,393 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,341 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,408 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,122 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,554 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,663 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,182 |
| World Map Quiz | 0 | - | 4.81 | 65,584 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,914 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,648 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,124 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,997 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,485 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,395 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,356 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,464 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,665 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,651 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,501 |
| Widest Countries East to West | 0 | - | 4.92 | 130,390 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,580 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,179 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,492 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,016 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,926 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,411 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,478 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,881 |
| Countries with Double Letters | 0 | - | 4.96 | 96,944 |
| Countries that End in N | 0 | - | 4.94 | 171,814 |
| Countries with Five Letters | 0 | - | 4.96 | 283,586 |
| Countries with Six Letters | 0 | - | 4.94 | 214,314 |
| Countries with W | 0 | - | 4.96 | 160,850 |
| Countries with Z | 0 | - | 4.98 | 292,296 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,207 |
| Countries That End in U | 0 | - | 4.95 | 121,131 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,008 |
| Countries that End in O | 0 | - | 4.92 | 159,998 |
| Countries that End in R | 0 | - | 4.87 | 119,144 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,899 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,728 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,085 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,769 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,705 |
| Countries That End in Y | 0 | - | 4.91 | 186,058 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,382 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,207 |
| Countries that End in I | 0 | - | 4.94 | 135,280 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,545 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,020 |
| Countries That End in NIA | 0 | - | 4.92 | 110,015 |
| Countries That End in BIA | 0 | - | 4.93 | 149,533 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,462 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,725 |
| Countries That End in RIA | 0 | - | 4.93 | 127,025 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,331 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,444 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,101 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,538 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,111 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,775 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,288 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,526 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,844 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,618 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,652 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,348 |
| Countries that End in L | 0 | - | 4.94 | 157,077 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,766 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,333 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,336 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,876 |
