| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,659,449 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 745,390 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,213 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 388,924 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,966,716 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,106 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,063 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,706 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,858 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,925 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 140,442 |
| Countries with Four Letters | 0 | - | 4.99 | 426,428 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,326 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,201 |
| Landlocked Countries | 0 | - | 4.99 | 427,217 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 983,624 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,292 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,663 |
| Country Chain | 0 | - | 4.96 | 218,655 |
| Countries by Emojis | 0 | - | 4.99 | 242,832 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,703 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,336 |
| Islands by Country #1 | 0 | - | 4.90 | 176,486 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,336 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,654 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,465 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,144 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,496 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,374 |
| Name a Valid Country #1 | 0 | - | 4.99 | 296,074 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,588 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,584 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,396 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,636 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,899 |
| Himalayan Countries | 0 | - | 4.93 | 140,810 |
| Andean Countries | 0 | - | 4.94 | 85,795 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,911 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,479 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,460 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,686 |
| Danube Countries | 0 | - | 4.97 | 72,549 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,796 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,971 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,433 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,910 |
| European Landlocked Countries | 0 | - | 4.99 | 147,736 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,532 |
| Countries with the Most Species | 0 | - | 4.99 | 103,644 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,634 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,813 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,952 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,923 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,678 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,125 |
| Countries in the Alps | 0 | - | 4.87 | 118,968 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,980 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,126 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,053 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,170 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,126 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,389 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,592 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,989 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,512 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,311 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,953 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,829 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,670 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,924 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,019 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,143 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,730 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,417 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,833 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,287 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,488 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,614 |
| Largest Countries By Category | 0 | - | 4.97 | 159,084 |
| Countries by Countries | 0 | - | 4.97 | 63,801 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,436 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,449 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,704 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,227 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,586 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,032 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,341 |
| Island Countries | 0 | - | 4.99 | 713,003 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,124 |
| Northernmost Countries | 0 | - | 4.99 | 364,584 |
| Countries of South America | 0 | - | 5.00 | 934,238 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,455 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,907 |
| "Land" Countries | 0 | - | 4.98 | 338,987 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,893 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,817 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,767 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,202 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 90,019 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,961 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,676 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,865 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,605 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,442 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 194,014 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,334 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 141,893 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 81,670 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,630 |
| Random Countries by Borders | 0 | - | 4.99 | 83,194 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,888 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.96 | 243,403 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,490 |
| Countries with Megacities | 0 | - | 4.99 | 267,830 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,138 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,335 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,467 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,431 |
| Random World Capitals on a Map | 0 | - | 4.93 | 136,015 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,006 |
| Countries by Official Language | 0 | - | 4.95 | 196,213 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,938 |
| Countries in their Native Language | 0 | - | 4.99 | 199,952 |
| Independence from Whom | 0 | - | 4.99 | 213,398 |
| Subdivisions by Country | 0 | - | 4.87 | 50,665 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,660 |
| Megadiverse Countries | 0 | - | 4.96 | 148,972 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,133 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,575 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,803 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,257 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,466 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,925 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,273 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,624 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,163 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,286 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,761 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,488 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,507 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,216 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,638 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,974 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 102,140 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,718 |
| World Map Quiz | 0 | - | 4.81 | 65,924 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,879 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,814 |
| Countries by Founding Story | 0 | - | 4.95 | 77,906 |
| Countries by Road Signs | 0 | - | 4.98 | 54,446 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,507 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,232 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,704 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,926 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,547 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,662 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,849 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,764 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,938 |
| Widest Countries East to West | 0 | - | 4.92 | 130,849 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,628 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,398 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,560 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,158 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,106 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,613 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,534 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,922 |
| Countries with Double Letters | 0 | - | 4.96 | 97,619 |
| Countries that End in N | 0 | - | 4.95 | 172,623 |
| Countries with Five Letters | 0 | - | 4.96 | 284,628 |
| Countries with Six Letters | 0 | - | 4.94 | 214,953 |
| Countries with W | 0 | - | 4.96 | 161,303 |
| Countries with Z | 0 | - | 4.98 | 292,994 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,664 |
| Countries That End in U | 0 | - | 4.95 | 121,389 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,423 |
| Countries that End in O | 0 | - | 4.92 | 160,369 |
| Countries that End in R | 0 | - | 4.87 | 119,276 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,061 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,144 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 185,623 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,193 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,750 |
| Countries That End in Y | 0 | - | 4.91 | 186,174 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,259 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,419 |
| Countries that End in I | 0 | - | 4.94 | 135,422 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,252 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,147 |
| Countries That End in NIA | 0 | - | 4.92 | 110,158 |
| Countries That End in BIA | 0 | - | 4.93 | 149,735 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,930 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,906 |
| Countries That End in RIA | 0 | - | 4.93 | 127,145 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,544 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,934 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,386 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,849 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,401 |
