| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,633,063 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,902 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 240,729 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 722,850 |
| Countries That Border Russia | 0 | - | 4.98 | 462,839 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,616 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,565 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,385 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,943 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,809 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,623 |
| Countries in an Empty Ring of the World Map | 0 | - | 4.92 | 126,778 |
| Countries with Four Letters | 0 | - | 4.99 | 423,363 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,425 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,665 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,733 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,886 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 132,321 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,668 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,524 |
| Countries that Border Poland | 0 | - | 4.99 | 172,612 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,003 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,932 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,596,711 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,784 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,922 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,082 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,375 |
| Country Chain | 0 | - | 4.96 | 217,412 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 978,745 |
| Countries by Emojis | 0 | - | 4.99 | 240,450 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,114 |
| Islands by Country #1 | 0 | - | 4.88 | 175,486 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,647 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,044 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,813 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,423 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 29,054 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,685 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,300 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,507 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,681 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,675 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,977 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,724 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,430 |
| Landlocked Countries | 0 | - | 4.99 | 422,146 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,055 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,931 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,181 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,357 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,277 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,864 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,609 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,947 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,350 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,712 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,630 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,649 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,142 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,198 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,156 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,204 |
| European Countries with One Border | 0 | - | 4.97 | 183,125 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,898 |
| Random Countries by Borders | 0 | - | 4.99 | 82,651 |
| Countries Bordering France | 0 | - | 4.83 | 403,565 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,689 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,448 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,712 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,885 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,553 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,432 |
| Island Countries | 0 | - | 4.99 | 711,108 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,564 |
| Himalayan Countries | 0 | - | 4.94 | 138,824 |
| Andean Countries | 0 | - | 4.93 | 84,661 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,863 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,901 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,490 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,839 |
| Danube Countries | 0 | - | 4.97 | 72,035 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,043 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,444 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,350 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,833 |
| European Landlocked Countries | 0 | - | 4.99 | 147,165 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,680 |
| Countries with the Most Species | 0 | - | 4.99 | 103,264 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,792 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,603 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,729 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,556 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,246 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,684 |
| Countries in the Alps | 0 | - | 4.87 | 118,234 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,223 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,065 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,673 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,615 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,538 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,961 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,695 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,514 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,192 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,868 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,666 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,537 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,242 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,493 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,544 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,952 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,331 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,003 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,117 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,036 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,178 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,249 |
| Largest Countries By Category | 0 | - | 4.97 | 158,248 |
| Countries by Countries | 0 | - | 4.96 | 63,252 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,132 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,698 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,711 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,648 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,297 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 80,715 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,415 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 76,649 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 154,724 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 73,770 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,268 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,571 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,690 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,102 |
| Northernmost Countries | 0 | - | 4.99 | 362,040 |
| Countries of South America | 0 | - | 5.00 | 927,606 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,302 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,888 |
| "Land" Countries | 0 | - | 4.98 | 337,394 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,429 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,440 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,182 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,936 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,270 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,311 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,515 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,384 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,658 |
| One Border Countries - Shape Quiz | 0 | - | 4.84 | 65,004 |
| Countries Bordering India | 0 | - | 4.98 | 163,563 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,665 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,562 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,635 |
| Countries that Border China | 0 | - | 4.96 | 263,560 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,970 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,818 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,022 |
| Merged Countries #2 | 0 | - | 4.96 | 99,264 |
| Merged Countries #6 | 0 | - | 4.90 | 73,484 |
| Merged Countries #7 | 0 | - | 4.93 | 82,819 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,456 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,034 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,939 |
| Countries with Megacities | 0 | - | 4.99 | 264,656 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,773 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,494 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,036 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,565 |
| Countries by Official Language | 0 | - | 4.95 | 195,286 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,418 |
| Countries in their Native Language | 0 | - | 4.99 | 199,077 |
| Independence from Whom | 0 | - | 4.99 | 212,147 |
| Subdivisions by Country | 0 | - | 4.86 | 50,437 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,762 |
| Megadiverse Countries | 0 | - | 4.96 | 135,028 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,123 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,368 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,245 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,112 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,161 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,605 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,499 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,044 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,669 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,151 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,700 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,895 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,217 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,974 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,362 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,502 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,237 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 96,005 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,144 |
| World Map Quiz | 0 | - | 4.81 | 65,117 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,373 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,367 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,089 |
| Countries by Founding Story | 0 | - | 4.95 | 77,388 |
| Countries by Road Signs | 0 | - | 4.98 | 54,026 |
