| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,819 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,544 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 236,410 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,459 |
| Countries That Border Russia | 0 | - | 4.98 | 458,910 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,935 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,761 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,154 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,107 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,225 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,677 |
| Countries in an Empty Ring of the World Map | 0 | - | 4.92 | 125,556 |
| Countries with Four Letters | 0 | - | 4.99 | 418,514 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,698 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,782 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,846 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,080 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,227 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,746 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,484 |
| Countries that Border Poland | 0 | - | 4.99 | 171,348 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,832 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,187 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,915,787 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,005 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,066 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,316 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,432 |
| Country Chain | 0 | - | 4.96 | 215,719 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 956,190 |
| Countries by Emojis | 0 | - | 4.99 | 236,163 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,106 |
| Islands by Country #1 | 0 | - | 4.87 | 174,481 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,918 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,281 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,331 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,797 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,187 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,802 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,474 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,382 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,565 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,788 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,394 |
| Monarchies Bordering Monarchies | 0 | - | 4.85 | 59,966 |
| Landlocked Countries | 0 | - | 4.99 | 413,556 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,197 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,281 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,435 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,448 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,339 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,336 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,848 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,673 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,629 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,567 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,816 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,323 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,434 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,038 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,212 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,596 |
| European Countries with One Border | 0 | - | 4.97 | 181,621 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,520 |
| Random Countries by Borders | 0 | - | 4.99 | 81,672 |
| Countries Bordering France | 0 | - | 4.83 | 399,076 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,044 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,215 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,865 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,209 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,099 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,823 |
| Island Countries | 0 | - | 4.99 | 707,596 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,563 |
| Himalayan Countries | 0 | - | 4.95 | 135,336 |
| Andean Countries | 0 | - | 4.94 | 82,814 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,206 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,193 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,888 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,596 |
| Danube Countries | 0 | - | 4.97 | 71,073 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,754 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,531 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,462 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,381 |
| European Landlocked Countries | 0 | - | 4.99 | 145,745 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,197 |
| Countries with the Most Species | 0 | - | 4.99 | 95,238 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,331 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,366 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,955 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,571 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,949 |
| Countries in the Alps | 0 | - | 4.86 | 116,816 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,555 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,248 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,000 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,413 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,155 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,996 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,570 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,269 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,044 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,040 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,449 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,737 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,746 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,052 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,635 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,765 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,253 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,663 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,599 |
| Largest Countries By Category | 0 | - | 4.97 | 156,749 |
| Countries by Countries | 0 | - | 4.96 | 62,251 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,194 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,796 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,376 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,803 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,961 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,600 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,315 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,577 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,535 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 72,806 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 54,602 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,330 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,760 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,390 |
| Northernmost Countries | 0 | - | 4.99 | 357,696 |
| Countries of South America | 0 | - | 5.00 | 914,619 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,346 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,135 |
| "Land" Countries | 0 | - | 4.98 | 333,637 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,907 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,253 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,473 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,062 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,452 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,625 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,088 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,203 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,905 |
| One Border Countries - Shape Quiz | 0 | - | 4.84 | 64,505 |
| Countries Bordering India | 0 | - | 4.98 | 162,599 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,776 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,926 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,213 |
| Countries that Border China | 0 | - | 4.96 | 261,814 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,529 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,306 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,450 |
| Merged Countries #2 | 0 | - | 4.96 | 98,476 |
| Merged Countries #6 | 0 | - | 4.91 | 72,707 |
| Merged Countries #7 | 0 | - | 4.92 | 81,957 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,983 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,612 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,173 |
| Countries with Megacities | 0 | - | 4.99 | 246,845 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,090 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,950 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,507 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,839 |
| Countries by Official Language | 0 | - | 4.95 | 192,763 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,115 |
| Countries in their Native Language | 0 | - | 4.99 | 196,626 |
| Independence from Whom | 0 | - | 4.99 | 209,681 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,738 |
| Megadiverse Countries | 0 | - | 4.97 | 133,897 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,789 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,426 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,857 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,649 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,993 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,946 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,140 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,210 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,739 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,561 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,411 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,489 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,501 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,670 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,020 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,574 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,421 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,757 |
| World Map Quiz | 0 | - | 4.81 | 63,491 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,651 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,321 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,622 |
| Countries by Founding Story | 0 | - | 4.95 | 76,531 |
| Countries by Road Signs | 0 | - | 4.98 | 53,099 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,338 |
