| Islands by Country #1 | 0 | - | 4.87 | 164,959 |
| Regions of Countries #1 | 0 | - | 4.96 | 150,824 |
| Regions of Countries #2 | 0 | - | 4.95 | 115,634 |
| Regions of Countries #3 | 0 | - | 4.84 | 84,473 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 96,308 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 135,105 |
| Solve the Secret Country #2 | 0 | - | 4.90 | 92,441 |
| Anagram Chain - Countries | 0 | - | 4.99 | 99,590 |
| Countries but all Vowels are Changed to O | 0 | - | 4.85 | 38,137 |
| Solve the Secret Country #3 | 0 | - | 4.97 | 47,444 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,777,767 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,541 |
| Word Scramble - Countries | 0 | - | 4.87 | 1,949,229 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 389,382 |
| Countries with Four Letters | 0 | - | 4.99 | 378,723 |
| Foods by Country of Origin #1 | 0 | - | 4.42 | 317,084 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 63,112 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,173,684 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,230,105 |
| Members of the Arab League | 0 | - | 4.86 | 66,378 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,548 |
| Himalayan Countries | 0 | - | 4.94 | 108,501 |
| Andean Countries | 0 | - | 4.91 | 60,259 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,424 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,878 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,502 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,868 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,288 |
| Danube Countries | 0 | - | 4.96 | 57,245 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,255 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,312 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,746 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,435 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,073 |
| European Landlocked Countries | 0 | - | 4.99 | 137,239 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,840 |
| Countries with the Most Species | 0 | - | 4.99 | 89,866 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,374 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,033 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,326 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,085 |
| Top Five Countries By Category #2 | 0 | - | 4.92 | 159,600 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,898 |
| Top Five Countries By Category #3 | 0 | - | 4.86 | 144,947 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,143 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,951 |
| Countries in the Alps | 0 | - | 4.84 | 103,903 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,468 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,590 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,305 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,402 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,925 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,376 |
| Country Chain | 0 | - | 4.96 | 200,005 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,576 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,791 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,712 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,440 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,201 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,041 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,037 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,603 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,695 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,269 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,633 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,977 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,067 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,734 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,489 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,855 |
| Largest Countries By Category | 0 | - | 4.97 | 146,477 |
| Countries by Emojis | 0 | - | 4.99 | 209,823 |
| Countries by Countries | 0 | - | 4.95 | 55,639 |
| Countries With One Word And Two O's | 0 | - | 4.91 | 36,030 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,595 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,221 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,658 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 185,565 |
| Name a Valid Country #3 | 0 | - | 4.98 | 213,627 |
| Name a Valid Country #1 | 0 | - | 4.99 | 232,837 |
| Name a Valid Country #2 | 0 | - | 4.98 | 199,072 |
| Name a Valid Country #4 | 0 | - | 4.97 | 206,320 |
| Name a Valid Country #5 | 0 | - | 4.99 | 164,370 |
| Name a Valid Country #6 | 0 | - | 4.94 | 103,673 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,184 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,790 |
| Island Countries Quiz | 0 | - | 4.99 | 668,813 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,782 |
| Northernmost Countries | 0 | - | 4.99 | 330,977 |
| Mountains by Country | 0 | - | 4.75 | 77,697 |
| Islands by Country #2 | 0 | - | 4.79 | 71,746 |
| Countries of South America | 0 | - | 5.00 | 810,241 |
| Countries of Oceania | 0 | - | 5.00 | 914,083 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,612,065 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 165,656 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 79,659 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 102,326 |
| Countries with the Most McDonald's Locations | 0 | - | 4.84 | 104,724 |
| Biggest Countries with No McDonald's | 0 | - | 4.85 | 81,911 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.90 | 88,429 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 288,408 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 211,136 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 201,664 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 171,746 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 108,180 |
| Movies by Country Quiz #1 | 0 | - | 4.15 | 52,211 |
| Movies by Country Quiz #2 | 0 | - | 4.21 | 44,421 |
| Random Countries by Borders | 0 | - | 4.99 | 67,547 |
| Random Name a Valid Country | 0 | - | 4.99 | 174,963 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,083 |
| Countries with Megacities | 0 | - | 4.99 | 201,906 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,427 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,987 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,281 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,909 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,138 |
| Countries by Official Language | 0 | - | 4.96 | 175,277 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,320 |
| Countries in their Native Language | 0 | - | 4.98 | 180,630 |
| Independence from Whom | 0 | - | 4.99 | 189,420 |
| Subdivisions by Country | 0 | - | 4.84 | 46,898 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,665 |
| Megadiverse Countries | 0 | - | 4.96 | 126,823 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,951 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,601 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,833 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,370 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,902 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,666 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,052 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,731 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,861 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,091 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,276 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,955 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,493 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,410 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,038 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,579 |
| World Map Quiz | 0 | - | 4.90 | 51,488 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,570 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,751 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,803 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,844 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,994 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,802 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,704 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,089 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,312 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,103 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,590 |
| Widest Countries East to West | 0 | - | 4.93 | 120,565 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,122 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,554 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,837 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,421 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,862 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,669 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,494 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,803 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,416 |
| Countries with Double Letters | 0 | - | 4.96 | 71,828 |
| Countries that End in N | 0 | - | 4.94 | 136,014 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,891 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,582 |
| Countries with W | 0 | - | 4.96 | 125,674 |
| Countries with Z | 0 | - | 4.98 | 264,700 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,695 |
| Countries That End in U | 0 | - | 4.95 | 109,349 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,392 |
| Countries that End in O | 0 | - | 4.92 | 148,656 |
| Countries that End in R | 0 | - | 4.85 | 97,321 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,099 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,198 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,714 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,705 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,646 |
| Countries That End in Y | 0 | - | 4.90 | 162,421 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,006 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,391 |
| Countries that End in I | 0 | - | 4.92 | 115,204 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,645 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,391 |
| Countries That End in NIA | 0 | - | 4.92 | 101,825 |
| Countries That End in BIA | 0 | - | 4.91 | 127,317 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,170 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,981 |
| Countries That End in RIA | 0 | - | 4.90 | 101,900 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,770 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,625 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,634 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,772 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,306 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,910 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,852 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,180 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,695 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,508 |
| Countries that End in L | 0 | - | 4.95 | 135,851 |
| "Land" Countries | 0 | - | 4.98 | 292,362 |
