| Country Chain | 0 | - | 4.96 | 216,487 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,605,865 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,476 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,259 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,887 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,761 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,914 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,191,976 |
| Landlocked Countries | 0 | - | 4.99 | 417,011 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,980 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,246 |
| Countries with Four Letters | 0 | - | 4.99 | 420,520 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,256 |
| Capital Cities Chain | 0 | - | 4.84 | 82,290 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,098 |
| Himalayan Countries | 0 | - | 4.95 | 136,658 |
| Andean Countries | 0 | - | 4.95 | 83,563 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,818 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,104 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,484 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,081 |
| Danube Countries | 0 | - | 4.97 | 71,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,278 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,879 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,233 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,230 |
| European Landlocked Countries | 0 | - | 4.99 | 146,164 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,826 |
| Countries with the Most Species | 0 | - | 4.99 | 102,211 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,955 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,347 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,527 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,089 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,190 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 170,379 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,837 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,215 |
| Countries in the Alps | 0 | - | 4.86 | 117,387 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,936 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,987 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,280 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,778 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,868 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,290 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,033 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,017 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,841 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,380 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,383 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,759 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,028 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,033 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,787 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,919 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,452 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,282 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,211 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,671 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,849 |
| Largest Countries By Category | 0 | - | 4.97 | 157,320 |
| Countries by Emojis | 0 | - | 4.99 | 237,925 |
| Countries by Countries | 0 | - | 4.96 | 62,631 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,481 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,874 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,921 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,091 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,414 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,126 |
| Islands by Country #1 | 0 | - | 4.87 | 174,866 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,202 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,559 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,525 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,228 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,837 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,298 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,231 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,205 |
| Name a Valid Country #5 | 0 | - | 4.99 | 205,183 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,428 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 716,668 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,276 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,973 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,032 |
| Island Countries | 0 | - | 4.99 | 708,976 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,771 |
| Northernmost Countries | 0 | - | 4.99 | 359,556 |
| Countries of South America | 0 | - | 5.00 | 920,191 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,674 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,965 |
| "Land" Countries | 0 | - | 4.98 | 334,812 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,959 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,738 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,762 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,527 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,152 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,384 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,243 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,935 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,835 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,929 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,307 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,160 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,375 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,854 |
| Random Countries by Borders | 0 | - | 4.99 | 82,055 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,222 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,422 |
| Countries with Megacities | 0 | - | 4.99 | 249,244 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,282 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,624 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,590 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,603 |
| Countries by Official Language | 0 | - | 4.95 | 194,104 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,906 |
| Countries in their Native Language | 0 | - | 4.99 | 197,721 |
| Independence from Whom | 0 | - | 4.99 | 210,900 |
| Subdivisions by Country | 0 | - | 4.86 | 50,215 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,409 |
| Megadiverse Countries | 0 | - | 4.96 | 134,574 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,921 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,089 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,651 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,956 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,483 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,256 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,660 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,579 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,393 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,814 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,375 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,599 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,699 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,665 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,878 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,228 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,673 |
| World Map Quiz | 0 | - | 4.81 | 64,170 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,592 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,741 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,120 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,708 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,435 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,793 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,309 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,496 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,662 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,165 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,728 |
| Widest Countries East to West | 0 | - | 4.92 | 129,180 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,336 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,704 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,936 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,976 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,012 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,392 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,130 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,684 |
| Countries with Double Letters | 0 | - | 4.96 | 94,292 |
| Countries that End in N | 0 | - | 4.95 | 167,803 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 262,540 |
| Countries with Six Letters | 0 | - | 4.93 | 211,325 |
| Countries with W | 0 | - | 4.97 | 158,947 |
| Countries with Z | 0 | - | 4.98 | 288,945 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,152 |
| Countries That End in U | 0 | - | 4.95 | 120,023 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,249 |
| Countries that End in O | 0 | - | 4.92 | 158,929 |
| Countries that End in R | 0 | - | 4.87 | 118,546 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,321 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,844 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,796 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,849 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,429 |
| Countries That End in Y | 0 | - | 4.90 | 185,466 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,905 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,137 |
| Countries that End in I | 0 | - | 4.94 | 134,703 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,746 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,432 |
| Countries That End in NIA | 0 | - | 4.92 | 109,321 |
| Countries That End in BIA | 0 | - | 4.93 | 148,606 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,461 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,810 |
| Countries That End in RIA | 0 | - | 4.93 | 126,374 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,378 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,166 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,905 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,240 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,849 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,174 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,480 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,990 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,880 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,044 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,565 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,260 |
| Countries that End in L | 0 | - | 4.94 | 156,326 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,073 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,086 |
