| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.91 | 267,355 |
| World Map with 10 Random Extra Borders | 0 | - | 4.96 | 351,455 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,676,401 |
| Word Scramble - Countries | 0 | - | 4.85 | 2,004,420 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 407,148 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 145,628 |
| Solve the Secret Country #2 | 0 | - | 4.88 | 101,391 |
| Anagram Chain - Countries | 0 | - | 4.99 | 105,842 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 115,959 |
| Countries with Four Letters | 0 | - | 4.99 | 384,978 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 53,378 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 374,275 |
| Countries of the World - One Minute Sprint | 0 | - | 4.37 | 914,821 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 170,083 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 155,227 |
| Country Chain | 0 | - | 4.96 | 206,663 |
| Countries by Emojis | 0 | - | 4.99 | 218,806 |
| Countries With One Word And Two O's | 0 | - | 4.95 | 50,531 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,337,670 |
| Islands by Country #1 | 0 | - | 4.87 | 168,587 |
| Regions of Countries #1 | 0 | - | 4.96 | 154,311 |
| Regions of Countries #2 | 0 | - | 4.95 | 118,782 |
| Regions of Countries #3 | 0 | - | 4.85 | 86,842 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,411,700 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 196,496 |
| Name a Valid Country #3 | 0 | - | 4.98 | 222,863 |
| Name a Valid Country #1 | 0 | - | 4.99 | 245,265 |
| Name a Valid Country #2 | 0 | - | 4.98 | 209,639 |
| Name a Valid Country #4 | 0 | - | 4.97 | 217,534 |
| Name a Valid Country #5 | 0 | - | 4.99 | 173,261 |
| Name a Valid Country #6 | 0 | - | 4.94 | 111,656 |
| Sahara Desert Countries | 0 | - | 4.98 | 141,662 |
| Himalayan Countries | 0 | - | 4.95 | 118,740 |
| Andean Countries | 0 | - | 4.92 | 66,517 |
| Countries with the Oldest Median Age | 0 | - | 4.83 | 67,608 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,148 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,462 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,207 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 57,900 |
| Danube Countries | 0 | - | 4.97 | 59,886 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,593 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 80,942 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,391 |
| Countries with the Worst Passports | 0 | - | 4.91 | 60,837 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,532 |
| European Landlocked Countries | 0 | - | 4.99 | 139,829 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,408 |
| Countries with the Most Species | 0 | - | 4.99 | 91,726 |
| Countries 197 to 205 | 0 | - | 4.87 | 61,885 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,309 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,429 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,781 |
| Countries that Use the Peso | 0 | - | 4.83 | 48,920 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,347 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,791 |
| Countries in the Alps | 0 | - | 4.86 | 108,701 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,741 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 95,924 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,668 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,590 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,537 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,133 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,022 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,076 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,395 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,002 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,152 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,735 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,606 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,379 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,096 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,741 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,097 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,162 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,107 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,131 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,763 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,455 |
| Largest Countries By Category | 0 | - | 4.97 | 150,058 |
| Countries by Countries | 0 | - | 4.96 | 57,770 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,254 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,343 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,030 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,895 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 356,928 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 377,885 |
| Island Countries Quiz | 0 | - | 4.99 | 685,773 |
| Biggest Countries by Area | 0 | - | 5.00 | 979,975 |
| Northernmost Countries | 0 | - | 4.99 | 340,015 |
| Countries of South America | 0 | - | 5.00 | 849,497 |
| Countries of Oceania | 0 | - | 5.00 | 960,308 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,699,964 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 171,305 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.92 | 83,502 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 105,354 |
| Countries with the Most McDonald's Locations | 0 | - | 4.81 | 107,190 |
| Biggest Countries with No McDonald's | 0 | - | 4.85 | 84,917 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,227,533 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.92 | 41,122 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.90 | 91,950 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 299,488 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 219,230 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 209,750 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 178,612 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 113,331 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 120,762 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 98,806 |
| Random Countries by Borders | 0 | - | 4.99 | 70,353 |
| Random Name a Valid Country | 0 | - | 4.99 | 189,963 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,451 |
| Countries with Megacities | 0 | - | 4.99 | 214,438 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,277 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 104,919 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 105,458 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,650 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 266,270 |
| Random World Capitals on a Map | 0 | - | 4.92 | 123,810 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 84,104 |
| Countries by Official Language | 0 | - | 4.95 | 182,167 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 279,369 |
| Countries in their Native Language | 0 | - | 4.98 | 187,098 |
| Independence from Whom | 0 | - | 4.99 | 197,516 |
| Subdivisions by Country | 0 | - | 4.86 | 48,174 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 121,947 |
| Megadiverse Countries | 0 | - | 4.96 | 129,861 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 119,815 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,180 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,091 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,033 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,841 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 84,951 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,346 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,597 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,110 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 64,793 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,160 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,322 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,689 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 71,575 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 67,963 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 96,522 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 95,701 |
| World Map Quiz | 0 | - | 4.88 | 56,306 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 131,309 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,817 |
| Countries by Founding Story | 0 | - | 4.94 | 71,808 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,636 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,484 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 114,978 |
| Countries With the Most Languages | 0 | - | 4.88 | 186,865 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,804 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,530 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,221 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,680 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,812 |
| Widest Countries East to West | 0 | - | 4.92 | 123,719 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,941 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,296 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,053 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,561 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,101 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,546 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,771 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,317 |
| Countries with Double Letters | 0 | - | 4.96 | 79,983 |
| Countries that End in N | 0 | - | 4.93 | 144,217 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,055 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,422 |
| Countries with W | 0 | - | 4.97 | 131,882 |
| Countries with Z | 0 | - | 4.98 | 273,556 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,179 |
| Countries That End in U | 0 | - | 4.95 | 113,241 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,671 |
| Countries that End in O | 0 | - | 4.92 | 152,934 |
| Countries that End in R | 0 | - | 4.84 | 99,394 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,342 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,281 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,259 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,045 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,556 |
| Countries That End in Y | 0 | - | 4.91 | 181,178 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,734 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,514 |
| Countries that End in I | 0 | - | 4.92 | 116,986 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,173 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,500 |
| Countries That End in NIA | 0 | - | 4.92 | 104,523 |
| Countries That End in BIA | 0 | - | 4.92 | 141,574 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,056 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 113,946 |
| Countries That End in RIA | 0 | - | 4.89 | 104,855 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,033 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 212,991 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,059 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,732 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,736 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 70,696 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 47,826 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 96,898 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,044 |
