| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,610 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,660,491 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,563 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,790 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,903 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,146 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,756 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,908 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,962 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,831 |
| Countries with Four Letters | 0 | - | 4.99 | 426,524 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,365 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,236 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,980,770 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,405 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,828 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,671 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,755 |
| Landlocked Countries | 0 | - | 4.99 | 427,385 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,427 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 745,896 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,333 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,698 |
| Country Chain | 0 | - | 4.96 | 218,682 |
| Countries by Emojis | 0 | - | 4.99 | 242,883 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,726 |
| Islands by Country #1 | 0 | - | 4.90 | 176,512 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,351 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,667 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,478 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,447 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,551 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,786 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,428 |
| Name a Valid Country #1 | 0 | - | 4.99 | 296,209 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,658 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,646 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,461 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,689 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,315 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,906 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,985 |
| Himalayan Countries | 0 | - | 4.93 | 140,885 |
| Andean Countries | 0 | - | 4.94 | 85,830 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,945 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,524 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,488 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,709 |
| Danube Countries | 0 | - | 4.97 | 72,573 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,822 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,988 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,469 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,945 |
| European Landlocked Countries | 0 | - | 4.99 | 147,785 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,556 |
| Countries with the Most Species | 0 | - | 4.99 | 103,656 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,661 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,818 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,961 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,914 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,833 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,934 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,688 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,145 |
| Countries in the Alps | 0 | - | 4.87 | 119,002 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,040 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,180 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,074 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,189 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,144 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,404 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,615 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,006 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,519 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,324 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,961 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,834 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,685 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,938 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,037 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,174 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,746 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,784 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,558 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,857 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,386 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,538 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,626 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,220 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 90,032 |
| Largest Countries By Category | 0 | - | 4.97 | 159,118 |
| Countries by Countries | 0 | - | 4.97 | 63,819 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,714 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,899 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,654 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,487 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 194,061 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,470 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,368 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,451 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,244 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,284 |
| National Animals | 0 | - | 4.24 | 90,269 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,638 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,764 |
| Random Countries by Borders | 0 | - | 4.99 | 83,211 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,927 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,949 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,748 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,081 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,452 |
| Island Countries | 0 | - | 4.99 | 713,062 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,557 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,339 |
| Northernmost Countries | 0 | - | 4.99 | 364,664 |
| Countries of South America | 0 | - | 5.00 | 934,488 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,746 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,531 |
| "Land" Countries | 0 | - | 4.98 | 339,058 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 389,072 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 140,507 |
| Companies by Country | 0 | - | 4.61 | 120,542 |
| African Great Lakes | 0 | - | 4.82 | 67,135 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,269 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,038 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,540 |
| Countries with Megacities | 0 | - | 4.99 | 267,952 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,195 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,356 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,519 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,462 |
| Countries by Official Language | 0 | - | 4.95 | 196,253 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,990 |
| Countries in their Native Language | 0 | - | 4.99 | 199,977 |
| Independence from Whom | 0 | - | 4.99 | 213,442 |
| Subdivisions by Country | 0 | - | 4.87 | 50,674 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,693 |
| Megadiverse Countries | 0 | - | 4.96 | 149,387 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,159 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,588 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,820 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,263 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,497 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,930 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,306 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,637 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,178 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,289 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,813 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,501 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,515 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,226 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,649 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,984 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,779 |
| World Map Quiz | 0 | - | 4.81 | 65,939 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,978 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,828 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,552 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,252 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,721 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,971 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,572 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,685 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,871 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,771 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,965 |
| Widest Countries East to West | 0 | - | 4.92 | 130,870 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,634 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,423 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,172 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,134 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,626 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,542 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,927 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,291 |
| Countries with Double Letters | 0 | - | 4.96 | 97,681 |
| Countries that End in N | 0 | - | 4.95 | 172,675 |
| Countries with Five Letters | 0 | - | 4.96 | 284,714 |
| Countries with Six Letters | 0 | - | 4.94 | 215,012 |
| Countries with W | 0 | - | 4.96 | 161,348 |
| Countries with Z | 0 | - | 4.98 | 293,072 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,721 |
| Countries That End in U | 0 | - | 4.95 | 121,410 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,472 |
| Countries that End in O | 0 | - | 4.92 | 160,389 |
| Countries that End in R | 0 | - | 4.87 | 119,293 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,071 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,188 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 186,669 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,238 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,878 |
| Countries That End in Y | 0 | - | 4.91 | 186,188 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,392 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,448 |
| Countries that End in I | 0 | - | 4.94 | 135,438 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,353 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,155 |
| Countries That End in NIA | 0 | - | 4.92 | 110,170 |
