| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,233 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,695 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 381,509 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,278,249 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,096,970 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,654 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,884 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,592 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,077 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,006 |
| Countries with Four Letters | 0 | - | 4.99 | 421,220 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 69,029 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,129 |
| Landlocked Countries | 0 | - | 4.99 | 418,120 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 974,121 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,325 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,561 |
| Country Chain | 0 | - | 4.96 | 216,707 |
| Countries by Emojis | 0 | - | 4.99 | 238,386 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,591 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,461 |
| Islands by Country #1 | 0 | - | 4.88 | 175,015 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,302 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,648 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,582 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,751,862 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,688 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,291 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,178 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,775 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,712 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,044 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,778 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,675 |
| Name a Valid Country #8 | 0 | - | 4.85 | 98,042 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,578 |
| Himalayan Countries | 0 | - | 4.94 | 137,073 |
| Andean Countries | 0 | - | 4.95 | 83,753 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,999 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,378 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,670 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,245 |
| Danube Countries | 0 | - | 4.97 | 71,571 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,428 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,978 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,499 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,554 |
| European Landlocked Countries | 0 | - | 4.99 | 146,678 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,009 |
| Countries with the Most Species | 0 | - | 4.99 | 102,772 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,151 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,394 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,556 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,254 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,924 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,306 |
| Countries in the Alps | 0 | - | 4.87 | 117,571 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,046 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,210 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,364 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,900 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,013 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,389 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,174 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,119 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,922 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,483 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,441 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,300 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,864 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,126 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,151 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,014 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,002 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,525 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,419 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,924 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,041 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,933 |
| Largest Countries By Category | 0 | - | 4.97 | 157,519 |
| Countries by Countries | 0 | - | 4.96 | 62,766 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,099 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,133 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,453 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,250 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,262 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,377 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,696 |
| Island Countries | 0 | - | 4.99 | 709,415 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,167 |
| Northernmost Countries | 0 | - | 4.99 | 360,123 |
| Countries of South America | 0 | - | 5.00 | 921,914 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,775 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,906 |
| "Land" Countries | 0 | - | 4.98 | 335,604 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,466 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,873 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,865 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,582 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,244 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,905 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,404 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,034 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,255 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,305 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,608 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,419 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,760 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,710 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,930 |
| Random Countries by Borders | 0 | - | 4.99 | 82,215 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,513 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 238,928 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,738 |
| Countries with Megacities | 0 | - | 4.99 | 249,901 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,579 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,823 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,896 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,818 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,181 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,095 |
| Countries by Official Language | 0 | - | 4.95 | 194,487 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,329 |
| Countries in their Native Language | 0 | - | 4.99 | 198,055 |
| Independence from Whom | 0 | - | 4.99 | 211,157 |
| Subdivisions by Country | 0 | - | 4.86 | 50,256 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,581 |
| Megadiverse Countries | 0 | - | 4.96 | 134,710 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,177 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,149 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,709 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,992 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,629 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,325 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,855 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,780 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,452 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,941 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,728 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,669 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,909 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,741 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,075 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,282 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,257 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,973 |
| World Map Quiz | 0 | - | 4.81 | 64,389 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,177 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,952 |
| Countries by Founding Story | 0 | - | 4.95 | 76,995 |
| Countries by Road Signs | 0 | - | 4.98 | 53,580 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,349 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,843 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,562 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,109 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,443 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,620 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,764 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,221 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,222 |
| Widest Countries East to West | 0 | - | 4.92 | 129,291 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,368 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,861 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,974 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,458 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,136 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,479 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,207 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,712 |
| Countries with Double Letters | 0 | - | 4.97 | 94,946 |
| Countries that End in N | 0 | - | 4.95 | 169,620 |
| Countries with Five Letters | 0 | - | 4.96 | 278,902 |
| Countries with Six Letters | 0 | - | 4.94 | 212,290 |
| Countries with W | 0 | - | 4.97 | 159,406 |
| Countries with Z | 0 | - | 4.98 | 289,630 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,619 |
| Countries That End in U | 0 | - | 4.95 | 120,356 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,635 |
| Countries that End in O | 0 | - | 4.92 | 159,149 |
| Countries that End in R | 0 | - | 4.87 | 118,688 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,471 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,188 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,023 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,027 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,610 |
| Countries That End in Y | 0 | - | 4.90 | 185,605 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,126 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,333 |
| Countries that End in I | 0 | - | 4.94 | 134,823 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,973 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,537 |
| Countries That End in NIA | 0 | - | 4.92 | 109,458 |
| Countries That End in BIA | 0 | - | 4.93 | 148,775 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,629 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,989 |
| Countries That End in RIA | 0 | - | 4.93 | 126,467 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,564 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,495 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,118 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,460 |
