| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,228,511 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,159 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,033 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,314 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 180,148 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,274 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,345 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,878 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,857 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,586 |
| Island Countries Quiz | 0 | - | 4.99 | 577,387 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,507 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,191 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,756 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,213 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,961 |
| Countries That Border Russia | 0 | - | 4.98 | 368,455 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,656 |
| Communist Countries in History | 0 | - | 4.48 | 383,744 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,737 |
| Islands by Country #1 | 0 | - | 4.86 | 149,506 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,181 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,536 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,421 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,389 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,875 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,175 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,981 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,509 |
| One Border Countries | 0 | - | 4.98 | 359,465 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,978 |
| EU Countries Quiz | 0 | - | 4.99 | 207,079 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,477,188 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,254,751 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,514 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,936 |
| Countries that Start with A | 0 | - | 4.96 | 1,631,860 |
| Countries that Start with B | 0 | - | 4.94 | 1,769,435 |
| Countries that Start with C | 0 | - | 4.95 | 1,402,036 |
| Countries that Start with D | 0 | - | 4.96 | 464,606 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,114 |
| Countries that Start with G | 0 | - | 4.95 | 1,131,664 |
| Countries that Start with H | 0 | - | 4.93 | 391,473 |
| Countries that Start with I | 0 | - | 4.90 | 977,946 |
| Countries that Start with J | 0 | - | 4.96 | 394,802 |
| Countries that Start with K | 0 | - | 4.94 | 573,064 |
| Countries that Start with L | 0 | - | 4.98 | 814,671 |
| Countries that Start with N | 0 | - | 4.90 | 835,886 |
| Countries that Start with P | 0 | - | 4.94 | 923,817 |
| Countries that Start with R | 0 | - | 4.42 | 300,551 |
| Countries that Start with S | 0 | - | 4.96 | 1,358,385 |
| Countries that Start with T | 0 | - | 4.89 | 760,073 |
| Countries that Start with U | 0 | - | 4.97 | 685,740 |
| Countries that Start with V | 0 | - | 4.97 | 456,885 |
| Countries that Start with F | 0 | - | 4.76 | 424,843 |
| Countries that Start with M | 0 | - | 4.95 | 1,061,884 |
| Countries that Border China | 0 | - | 4.97 | 212,241 |
| Countries in World War II | 0 | - | 4.48 | 681,423 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,153 |
| Countries in World War I | 0 | - | 4.91 | 183,075 |
| Countries with Four Letters | 0 | - | 4.99 | 321,437 |
| Countries of Africa | 0 | - | 5.00 | 1,738,343 |
| Countries of South America | 0 | - | 5.00 | 624,939 |
| Countries of North America Quiz | 0 | - | 5.00 | 708,375 |
| Countries of Oceania | 0 | - | 5.00 | 714,535 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,440 |
| Vietnam War Countries | 0 | - | 4.78 | 76,774 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,581 |
| Countries Bordering France | 0 | - | 4.90 | 309,539 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,857 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,925 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,282 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,231 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,138 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,400 |
| Countries in their Native Language | 0 | - | 4.97 | 149,796 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,155 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,966 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,461 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,984 |
| Independence from Whom | 0 | - | 4.99 | 153,052 |
| Countries with Z | 0 | - | 4.99 | 223,204 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,577 |
| Political Movements by Country | 0 | - | 4.50 | 62,008 |
| "Land" Countries | 0 | - | 4.98 | 265,257 |
| European Countries by Clue | 0 | - | 4.94 | 154,559 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,752 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,515 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,698 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,968 |
| Former Countries by Capital | 0 | - | 4.41 | 97,442 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,161 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,670 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,855 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,650 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,998 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,442 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,482 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,820 |
| Historical City to Country | 0 | - | 4.81 | 66,440 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 148,324 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,961 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,761 |
| Countries With the Most Languages | 0 | - | 4.90 | 150,587 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,970 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,479 |
| Countries Closest to Italy | 0 | - | 4.97 | 148,406 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,761 |
| Countries Ending in "IA" | 0 | - | 4.99 | 150,432 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,877 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,914 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,214 |
| WWII Geography | 0 | - | 4.73 | 89,006 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,333,453 |
| Countries That End in Y | 0 | - | 4.89 | 148,545 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,325 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,050 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,220 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,904 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 60,134 |
| Former Countries | 0 | - | 4.52 | 100,469 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,819 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,725 |
| Cold War Decoder | 0 | - | 4.54 | 34,140 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,158 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,269 |
| Country Chain | 0 | - | 4.92 | 156,803 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 998,405 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,750 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,947 |
| Every Country Shape | 0 | - | 4.99 | 314,045 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,883,337 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,765 |
| Countries with Megacities | 0 | - | 4.99 | 176,139 |
| Every European Country Shape | 0 | - | 4.94 | 152,702 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,331 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,489 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,415 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,340 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,650,699 |
| Countries of the Middle East | 0 | - | 4.96 | 148,584 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 213,691 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,070 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,554 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,144 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,664 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,596 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,523 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,697 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,420 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,549 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,864 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 160,077 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,949 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,524 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,979 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,551 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,030 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,540 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,647 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,689 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,517 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,163 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,676 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,574 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,355 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,438 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,982 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,166 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,725 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,091 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,857 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,308 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,032 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,135 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,676 |
| Countries by Emojis | 0 | - | 4.99 | 158,659 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,282 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,757 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,716 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,547 |
| Random Flag to Country | 0 | - | 4.99 | 388,733 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,708 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,071 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,124 |
| Name a Valid Country #2 | 0 | - | 4.97 | 151,480 |
| Name a Valid Country #3 | 0 | - | 4.98 | 162,238 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,096,631 |
| Countries of the German Empire | 0 | - | 4.36 | 26,689 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,353 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,507 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,991 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,790 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,221 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,174 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,845 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,804 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,468 |
| Battle to Country | 0 | - | 4.89 | 30,625 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,963 |
