| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,003,984 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 733,420 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 342,793 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,503 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,496 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,163,440 |
| Biggest Countries by Area | 0 | - | 4.99 | 825,749 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,464 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,245 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,549 |
| Island Countries Quiz | 0 | - | 4.99 | 575,163 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,460 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,704 |
| Majority Muslim Countries | 0 | - | 4.96 | 280,783 |
| Countries with the Most Borders | 0 | - | 4.96 | 316,980 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 351,949 |
| Countries That Border Russia | 0 | - | 4.98 | 366,772 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,020 |
| Communist Countries in History | 0 | - | 4.47 | 381,788 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 254,747 |
| Islands by Country #1 | 0 | - | 4.86 | 148,805 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 285,906 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,060 |
| Countries by Borders #1 | 0 | - | 5.00 | 153,912 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,773 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 305,775 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,231 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,489 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,382 |
| One Border Countries | 0 | - | 4.98 | 357,544 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,189 |
| EU Countries Quiz | 0 | - | 4.99 | 206,300 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,452,075 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,243,657 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,798 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,823 |
| Countries that Start with A | 0 | - | 4.96 | 1,622,331 |
| Countries that Start with B | 0 | - | 4.94 | 1,759,822 |
| Countries that Start with C | 0 | - | 4.95 | 1,394,442 |
| Countries that Start with D | 0 | - | 4.96 | 460,704 |
| Countries that Start with E | 0 | - | 4.93 | 1,028,033 |
| Countries that Start with G | 0 | - | 4.95 | 1,125,161 |
| Countries that Start with H | 0 | - | 4.92 | 388,130 |
| Countries that Start with I | 0 | - | 4.90 | 972,707 |
| Countries that Start with J | 0 | - | 4.96 | 391,423 |
| Countries that Start with K | 0 | - | 4.94 | 568,374 |
| Countries that Start with L | 0 | - | 4.98 | 809,810 |
| Countries that Start with N | 0 | - | 4.90 | 831,062 |
| Countries that Start with P | 0 | - | 4.94 | 918,334 |
| Countries that Start with R | 0 | - | 4.41 | 297,817 |
| Countries that Start with S | 0 | - | 4.97 | 1,350,807 |
| Countries that Start with T | 0 | - | 4.88 | 755,625 |
| Countries that Start with U | 0 | - | 4.97 | 681,796 |
| Countries that Start with V | 0 | - | 4.97 | 454,140 |
| Countries that Start with F | 0 | - | 4.74 | 421,336 |
| Countries that Start with M | 0 | - | 4.95 | 1,056,161 |
| Countries that Border China | 0 | - | 4.97 | 211,177 |
| Countries in World War II | 0 | - | 4.47 | 677,101 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,459 |
| Countries in World War I | 0 | - | 4.92 | 182,127 |
| Countries with Four Letters | 0 | - | 4.99 | 320,157 |
| Countries of Africa | 0 | - | 5.00 | 1,723,335 |
| Countries of South America | 0 | - | 5.00 | 619,223 |
| Countries of North America Quiz | 0 | - | 5.00 | 702,190 |
| Countries of Oceania | 0 | - | 5.00 | 708,193 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 154,860 |
| Vietnam War Countries | 0 | - | 4.78 | 76,413 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,724 |
| Countries Bordering France | 0 | - | 4.90 | 308,192 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 198,925 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,254 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,836 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,485 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,851 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,591 |
| Countries in their Native Language | 0 | - | 4.97 | 149,288 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,705 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,307 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 191,858 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,470 |
| Independence from Whom | 0 | - | 4.99 | 152,484 |
| Countries with Z | 0 | - | 4.99 | 222,497 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,351 |
| Political Movements by Country | 0 | - | 4.49 | 61,757 |
| "Land" Countries | 0 | - | 4.98 | 262,255 |
| European Countries by Clue | 0 | - | 4.95 | 154,071 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 202,195 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 172,608 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,057 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 245,950 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,645 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,380 |
| Inventions by Country #1 | 0 | - | 4.42 | 41,692 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,437 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,886 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,155 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 155,992 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 180,981 |
| Historical City to Country | 0 | - | 4.81 | 66,197 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 147,812 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,436 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,493 |
| Countries With the Most Languages | 0 | - | 4.90 | 149,766 |
| Countries Closest to Canada | 0 | - | 4.92 | 156,061 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,367 |
| Countries Closest to Italy | 0 | - | 4.97 | 147,476 |
| Countries Closest to Spain | 0 | - | 4.96 | 169,737 |
| Countries Ending in "IA" | 0 | - | 4.99 | 149,657 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,553 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,353 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,441 |
| WWII Geography | 0 | - | 4.73 | 88,320 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,308,085 |
| Countries That End in Y | 0 | - | 4.89 | 147,974 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,020 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,603 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,545 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,163 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 59,843 |
| Former Countries | 0 | - | 4.56 | 100,159 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,012 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 149,798 |
| Cold War Decoder | 0 | - | 4.54 | 33,903 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,448 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,960 |
| Guerrillas by Country | 0 | - | 4.42 | 34,765 |
| Country Chain | 0 | - | 4.92 | 156,232 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 993,595 |
| World Map without 12 Countries | 0 | - | 4.96 | 277,970 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,256 |
| Every Country Shape | 0 | - | 4.99 | 311,694 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,865,286 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 216,845 |
| Countries with Megacities | 0 | - | 4.99 | 158,148 |
| Every European Country Shape | 0 | - | 4.94 | 151,868 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 164,696 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 169,337 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,569 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 151,963 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,635,347 |
| Countries of the Middle East | 0 | - | 4.96 | 147,516 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 190,764 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,591 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,128 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,653 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,048 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,706 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,556 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 170,843 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 175,480 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 186,923 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,700 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,229 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,630 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,263 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,760 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,373 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,615 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,201 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 141,897 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,534 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 89,986 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,125 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,074 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,308 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,109 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,204 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,754 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,298 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,003 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,772 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,293 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,645 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 23,903 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,669 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,173 |
| Countries by Emojis | 0 | - | 4.99 | 157,488 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 246,564 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,375 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,521 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,002 |
| Random Flag to Country | 0 | - | 4.99 | 385,787 |
| Name a Valid Country #1 | 0 | - | 4.99 | 171,509 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,891 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,191 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,166 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,300 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,089,131 |
| Countries of the German Empire | 0 | - | 4.36 | 26,493 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,089 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 238,925 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,381 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 173,283 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,291 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,428 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 166,311 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 104,868 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 73,844 |
| Battle to Country | 0 | - | 4.89 | 30,447 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,797 |
