| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,147,663 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,799 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,609 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,032 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,923 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,166,629 |
| Biggest Countries by Area | 0 | - | 4.99 | 828,093 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,744 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,694 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,245 |
| Island Countries Quiz | 0 | - | 4.99 | 576,626 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,989 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,002 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,436 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,763 |
| Countries with the Longest Coastlines | 0 | - | 4.86 | 352,648 |
| Countries That Border Russia | 0 | - | 4.98 | 367,802 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,448 |
| Communist Countries in History | 0 | - | 4.48 | 383,035 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,445 |
| Islands by Country #1 | 0 | - | 4.86 | 149,334 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,510 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,392 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,214 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,157 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,508 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,851 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,778 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,459 |
| One Border Countries | 0 | - | 4.98 | 358,754 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,710 |
| EU Countries Quiz | 0 | - | 4.99 | 206,849 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,467,484 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,250,577 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,331 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,896 |
| Countries that Start with A | 0 | - | 4.96 | 1,628,615 |
| Countries that Start with B | 0 | - | 4.94 | 1,766,159 |
| Countries that Start with C | 0 | - | 4.95 | 1,399,505 |
| Countries that Start with D | 0 | - | 4.96 | 463,277 |
| Countries that Start with E | 0 | - | 4.93 | 1,032,078 |
| Countries that Start with G | 0 | - | 4.95 | 1,129,443 |
| Countries that Start with H | 0 | - | 4.92 | 390,363 |
| Countries that Start with I | 0 | - | 4.90 | 976,194 |
| Countries that Start with J | 0 | - | 4.96 | 393,646 |
| Countries that Start with K | 0 | - | 4.94 | 571,611 |
| Countries that Start with L | 0 | - | 4.98 | 812,968 |
| Countries that Start with N | 0 | - | 4.90 | 834,211 |
| Countries that Start with P | 0 | - | 4.94 | 922,009 |
| Countries that Start with R | 0 | - | 4.42 | 299,688 |
| Countries that Start with S | 0 | - | 4.97 | 1,355,804 |
| Countries that Start with T | 0 | - | 4.89 | 758,591 |
| Countries that Start with U | 0 | - | 4.97 | 684,439 |
| Countries that Start with V | 0 | - | 4.97 | 455,984 |
| Countries that Start with F | 0 | - | 4.76 | 423,751 |
| Countries that Start with M | 0 | - | 4.95 | 1,059,892 |
| Countries that Border China | 0 | - | 4.97 | 211,953 |
| Countries in World War II | 0 | - | 4.48 | 679,815 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,975 |
| Countries in World War I | 0 | - | 4.92 | 182,744 |
| Countries with Four Letters | 0 | - | 4.99 | 321,014 |
| Countries of Africa | 0 | - | 5.00 | 1,733,032 |
| Countries of South America | 0 | - | 5.00 | 622,768 |
| Countries of North America Quiz | 0 | - | 5.00 | 706,156 |
| Countries of Oceania | 0 | - | 5.00 | 712,348 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,239 |
| Vietnam War Countries | 0 | - | 4.78 | 76,646 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,330 |
| Countries Bordering France | 0 | - | 4.90 | 308,982 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,645 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,132 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,106 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,968 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,036 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,115 |
| Countries in their Native Language | 0 | - | 4.97 | 149,623 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,979 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,765 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,265 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,815 |
| Independence from Whom | 0 | - | 4.99 | 152,850 |
| Countries with Z | 0 | - | 4.99 | 222,949 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,496 |
| Political Movements by Country | 0 | - | 4.50 | 61,921 |
| "Land" Countries | 0 | - | 4.98 | 264,854 |
| European Countries by Clue | 0 | - | 4.94 | 154,371 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 214,870 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,315 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,546 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,636 |
| Former Countries by Capital | 0 | - | 4.41 | 97,358 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,969 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,796 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,570 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,955 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,336 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,297 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,522 |
| Historical City to Country | 0 | - | 4.81 | 66,360 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 148,137 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,768 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,680 |
| Countries With the Most Languages | 0 | - | 4.89 | 150,312 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,435 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,435 |
| Countries Closest to Italy | 0 | - | 4.97 | 147,978 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,264 |
| Countries Ending in "IA" | 0 | - | 4.99 | 150,189 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,754 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,369 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,911 |
| WWII Geography | 0 | - | 4.73 | 88,548 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,325,032 |
| Countries That End in Y | 0 | - | 4.89 | 148,363 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,212 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,888 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,977 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,645 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 60,022 |
| Former Countries | 0 | - | 4.52 | 100,343 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,542 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,437 |
| Cold War Decoder | 0 | - | 4.54 | 34,066 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,932 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,164 |
| Country Chain | 0 | - | 4.92 | 156,623 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 996,872 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,481 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,705 |
| Every Country Shape | 0 | - | 4.99 | 313,277 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,877,274 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,461 |
| Countries with Megacities | 0 | - | 4.99 | 175,719 |
| Every European Country Shape | 0 | - | 4.94 | 152,432 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,130 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,107 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,129 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 152,833 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,645,275 |
| Countries of the Middle East | 0 | - | 4.96 | 148,116 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,606 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,882 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,058 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,978 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,462 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,309 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,201 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,414 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.87 | 176,066 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,968 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,803 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,781 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,826 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,430 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,906 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,486 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,872 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,419 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,398 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,640 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,316 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,150 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,446 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,485 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,267 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,367 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,900 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,975 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,466 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,002 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,672 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,080 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,983 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,000 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,503 |
| Countries by Emojis | 0 | - | 4.99 | 158,279 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,592 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,617 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,638 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,350 |
| Random Flag to Country | 0 | - | 4.99 | 387,608 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,229 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,995 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,780 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,732 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,874 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,093,435 |
| Countries of the German Empire | 0 | - | 4.36 | 26,634 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,229 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,809 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,773 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,261 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,887 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,868 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,039 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,459 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,265 |
| Battle to Country | 0 | - | 4.89 | 30,567 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,961 |
