| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,654,220 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 743,748 |
| Country Shape Quiz #2 | 0 | - | 4.93 | 346,266 |
| Country Shape Quiz #3 | 0 | - | 4.93 | 247,674 |
| Country Shape Quiz #4 | 0 | - | 4.91 | 181,148 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,176,656 |
| Biggest Countries by Area | 0 | - | 4.99 | 835,693 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 164,506 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 152,452 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 297,437 |
| Island Countries Quiz | 0 | - | 4.99 | 581,291 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 295,707 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,878 |
| Majority Muslim Countries | 0 | - | 4.97 | 283,537 |
| Countries with the Most Borders | 0 | - | 4.96 | 319,996 |
| Countries with the Longest Coastlines | 0 | - | 4.86 | 354,880 |
| Countries That Border Russia | 0 | - | 4.98 | 371,561 |
| Countries and Languages Quiz | 0 | - | 4.86 | 217,030 |
| Communist Countries in History | 0 | - | 4.49 | 387,151 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 256,908 |
| Islands by Country #1 | 0 | - | 4.86 | 150,259 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 288,739 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 173,299 |
| Countries by Borders #1 | 0 | - | 5.00 | 164,515 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 206,306 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 308,548 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 302,805 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 133,897 |
| Former Capitals Quiz | 0 | - | 4.76 | 54,737 |
| One Border Countries | 0 | - | 4.98 | 362,762 |
| NATO Countries Quiz | 0 | - | 4.97 | 203,325 |
| EU Countries Quiz | 0 | - | 4.99 | 208,445 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,522,748 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,274,003 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 132,268 |
| Countries by Independence Day Quiz | 0 | - | 4.46 | 42,123 |
| Countries that Start with A | 0 | - | 4.96 | 1,648,332 |
| Countries that Start with B | 0 | - | 4.94 | 1,786,072 |
| Countries that Start with C | 0 | - | 4.95 | 1,414,839 |
| Countries that Start with D | 0 | - | 4.96 | 471,023 |
| Countries that Start with E | 0 | - | 4.93 | 1,044,245 |
| Countries that Start with G | 0 | - | 4.95 | 1,142,864 |
| Countries that Start with H | 0 | - | 4.93 | 397,019 |
| Countries that Start with I | 0 | - | 4.91 | 986,937 |
| Countries that Start with J | 0 | - | 4.96 | 400,352 |
| Countries that Start with K | 0 | - | 4.95 | 580,415 |
| Countries that Start with L | 0 | - | 4.98 | 822,872 |
| Countries that Start with N | 0 | - | 4.91 | 844,425 |
| Countries that Start with P | 0 | - | 4.94 | 932,915 |
| Countries that Start with R | 0 | - | 4.41 | 305,061 |
| Countries that Start with S | 0 | - | 4.97 | 1,371,418 |
| Countries that Start with T | 0 | - | 4.89 | 767,829 |
| Countries that Start with U | 0 | - | 4.97 | 692,393 |
| Countries that Start with V | 0 | - | 4.98 | 461,347 |
| Countries that Start with F | 0 | - | 4.74 | 430,512 |
| Countries that Start with M | 0 | - | 4.95 | 1,071,743 |
| Countries that Border China | 0 | - | 4.97 | 213,477 |
| Countries in World War II | 0 | - | 4.47 | 688,493 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,885 |
| Countries in World War I | 0 | - | 4.91 | 184,899 |
| Countries with Four Letters | 0 | - | 4.99 | 323,878 |
| Countries of Africa | 0 | - | 5.00 | 1,765,135 |
| Countries of South America | 0 | - | 5.00 | 635,086 |
| Countries of North America Quiz | 0 | - | 5.00 | 719,404 |
| Countries of Oceania | 0 | - | 5.00 | 725,708 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 156,540 |
| Vietnam War Countries | 0 | - | 4.78 | 77,828 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 207,662 |
| Countries Bordering France | 0 | - | 4.90 | 311,709 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 200,932 |
| Countries Bordering Germany | 0 | - | 4.99 | 295,142 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,976 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 254,740 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,633 |
| Countries of the Soviet Union | 0 | - | 4.99 | 147,736 |
| Countries in their Native Language | 0 | - | 4.97 | 150,677 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,757 |
| Countries by Clue #1 | 0 | - | 4.89 | 197,277 |
| Countries with Five Letters Quiz | 0 | - | 4.93 | 193,613 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 158,913 |
| Independence from Whom | 0 | - | 4.99 | 166,651 |
| Countries with Z | 0 | - | 4.99 | 224,568 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,965 |
| Political Movements by Country | 0 | - | 4.48 | 62,383 |
| "Land" Countries | 0 | - | 4.98 | 267,229 |
| European Countries by Clue | 0 | - | 4.94 | 155,564 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 219,696 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 174,540 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 101,300 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 248,839 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 148,234 |
| Warsaw Pact Countries | 0 | - | 4.90 | 65,131 |
| Inventions by Country #1 | 0 | - | 4.43 | 42,090 |
| Cold War Trivia #1 | 0 | - | 4.34 | 50,004 |
| Cold War Trivia #2 | 0 | - | 4.17 | 23,182 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,947 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 157,340 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 183,532 |
| Historical City to Country | 0 | - | 4.81 | 66,864 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 149,407 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,696 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 51,241 |
| Countries With the Most Languages | 0 | - | 4.90 | 152,088 |
| Countries Closest to Canada | 0 | - | 4.93 | 157,954 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,651 |
| Countries Closest to Italy | 0 | - | 4.97 | 149,856 |
| Countries Closest to Spain | 0 | - | 4.96 | 172,076 |
| Countries Ending in "IA" | 0 | - | 4.99 | 151,888 |
| Countries Settled by Vikings | 0 | - | 4.92 | 92,504 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 345,859 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 195,629 |
| WWII Geography | 0 | - | 4.74 | 89,605 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,376,411 |
| Countries That End in Y | 0 | - | 4.89 | 149,544 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,903 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,780 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 164,290 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 170,140 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 60,588 |
| Former Countries | 0 | - | 4.52 | 101,105 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 226,095 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 151,673 |
| Cold War Decoder | 0 | - | 4.54 | 34,507 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 174,408 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 59,836 |
| Guerrillas by Country | 0 | - | 4.41 | 35,083 |
| Country Chain | 0 | - | 4.92 | 158,323 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 1,007,717 |
| World Map without 12 Countries | 0 | - | 4.96 | 280,498 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 112,146 |
| Every Country Shape | 0 | - | 4.99 | 317,809 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,915,918 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 219,410 |
| Countries with Megacities | 0 | - | 4.99 | 177,521 |
| Every European Country Shape | 0 | - | 4.94 | 153,874 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 166,453 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 172,376 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 170,112 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 155,732 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,678,049 |
| Countries of the Middle East | 0 | - | 4.96 | 150,322 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 217,361 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 66,858 |
| One Country By Letter By Continent | 0 | - | 4.99 | 38,945 |
| Most Populous Countries by Year | 0 | - | 4.79 | 80,098 |
| Largest Countries with No Borders | 0 | - | 4.97 | 164,673 |
| Countries of Europe After World War II | 0 | - | 4.97 | 145,151 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 114,052 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 173,184 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 177,669 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 191,665 |
| Most Recently-Settled Countries | 0 | - | 4.90 | 45,133 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 161,512 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,425 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,951 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 48,324 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,846 |
| Biggest Spanish Empire Countries | 0 | - | 4.80 | 81,684 |
| Soviet Union Country Quiz | 0 | - | 4.80 | 57,162 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 144,078 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.18 | 33,990 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 91,503 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.97 | 18,210 |
| Flags of the Countries that Start with C | 0 | - | 4.95 | 100,830 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 58,053 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,735 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,836 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,371 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 99,778 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 118,037 |
| Most-Visited Countries by Popes | 0 | - | 4.45 | 43,541 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.73 | 62,673 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 86,428 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 24,239 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,900 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 62,436 |
| Countries by Emojis | 0 | - | 4.99 | 160,606 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 251,263 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 81,327 |
| Roman Provinces on a Map | 0 | - | 4.74 | 26,089 |
| Countries of the World in 1900 | 0 | - | 4.86 | 53,411 |
| Random Flag to Country | 0 | - | 4.99 | 394,532 |
| Name a Valid Country #1 | 0 | - | 4.99 | 176,079 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,347 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 148,619 |
| Name a Valid Country #2 | 0 | - | 4.98 | 154,240 |
| Name a Valid Country #3 | 0 | - | 4.98 | 164,882 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,109,576 |
| Countries of the German Empire | 0 | - | 4.37 | 27,029 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,771 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 244,333 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,984 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 177,632 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 161,514 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 94,224 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 170,342 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 107,320 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 75,370 |
| Battle to Country | 0 | - | 4.89 | 30,879 |
| Countries of the Italian Empire | 0 | - | 4.19 | 20,250 |
