| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,257,899 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,599 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,197 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,409 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,933 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,813 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,729 |
| Island Countries Quiz | 0 | - | 4.99 | 577,689 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,605 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,252 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,880 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,374 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,087 |
| Countries That Border Russia | 0 | - | 4.98 | 368,684 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,732 |
| Communist Countries in History | 0 | - | 4.48 | 384,020 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,834 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,287 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,453 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,996 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,307 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,046 |
| One Border Countries | 0 | - | 4.98 | 359,686 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,068 |
| EU Countries Quiz | 0 | - | 4.99 | 207,181 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,480,194 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,255,970 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,574 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,950 |
| Countries that Start with A | 0 | - | 4.96 | 1,633,126 |
| Countries that Start with B | 0 | - | 4.94 | 1,770,697 |
| Countries that Start with C | 0 | - | 4.95 | 1,403,008 |
| Countries that Start with D | 0 | - | 4.96 | 465,100 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,900 |
| Countries that Start with G | 0 | - | 4.95 | 1,132,593 |
| Countries that Start with H | 0 | - | 4.93 | 391,894 |
| Countries that Start with I | 0 | - | 4.91 | 978,610 |
| Countries that Start with J | 0 | - | 4.96 | 395,243 |
| Countries that Start with K | 0 | - | 4.95 | 573,638 |
| Countries that Start with L | 0 | - | 4.98 | 815,330 |
| Countries that Start with N | 0 | - | 4.90 | 836,606 |
| Countries that Start with P | 0 | - | 4.94 | 924,539 |
| Countries that Start with R | 0 | - | 4.42 | 300,906 |
| Countries that Start with S | 0 | - | 4.96 | 1,359,417 |
| Countries that Start with T | 0 | - | 4.89 | 760,654 |
| Countries that Start with U | 0 | - | 4.97 | 686,272 |
| Countries that Start with V | 0 | - | 4.97 | 457,237 |
| Countries that Start with F | 0 | - | 4.76 | 425,244 |
| Countries that Start with M | 0 | - | 4.96 | 1,062,685 |
| Countries that Border China | 0 | - | 4.97 | 212,347 |
| Countries in World War II | 0 | - | 4.48 | 681,931 |
| Countries in World War I | 0 | - | 4.91 | 183,167 |
| Countries with Four Letters | 0 | - | 4.99 | 321,610 |
| Countries of Africa | 0 | - | 5.00 | 1,740,158 |
| Countries of South America | 0 | - | 5.00 | 625,596 |
| Countries of North America Quiz | 0 | - | 5.00 | 709,115 |
| Countries of Oceania | 0 | - | 5.00 | 715,411 |
| Vietnam War Countries | 0 | - | 4.78 | 76,822 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,667 |
| Countries Bordering France | 0 | - | 4.90 | 309,714 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,944 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,118 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,332 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,504 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,318 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,169 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,493 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,210 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,048 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,542 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,769 |
| Independence from Whom | 0 | - | 4.99 | 153,120 |
| Countries with Z | 0 | - | 4.99 | 223,299 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,600 |
| Political Movements by Country | 0 | - | 4.50 | 62,036 |
| "Land" Countries | 0 | - | 4.98 | 265,374 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,876 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,052 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,596 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,744 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,108 |
| Former Countries by Capital | 0 | - | 4.41 | 97,470 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,240 |
| Biggest Cities in History | 0 | - | 4.47 | 70,728 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,708 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,868 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,449 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,469 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,929 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,289 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,267 |
| Historical City to Country | 0 | - | 4.81 | 66,470 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,021 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,795 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,910 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,139 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,306 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,336,552 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,105 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,297 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,874 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,079 |
| Former Countries | 0 | - | 4.53 | 100,512 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,428 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,908 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,855 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,714 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,060 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,319 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,733 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 999,002 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,860 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,891 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,023 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.58 | 68,449 |
| Every Country Shape | 0 | - | 4.99 | 314,312 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,885,633 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,414 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,887 |
| Countries with Megacities | 0 | - | 4.99 | 176,251 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,588 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,561 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,445 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,591 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,652,993 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,396 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,634 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,134 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,753 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,738 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,129 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,389 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,701 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,647 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,741 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,174 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,761 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,095 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,713 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,888 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,988 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,555 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,007 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,574 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,075 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,589 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,738 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,087 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,175 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,601 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,773 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,606 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,391 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,456 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,012 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,215 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,332 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,407 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,815 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,127 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,442 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,929 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,380 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,197 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,502 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,099 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,042 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,196 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,733 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,000 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,717 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,810 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,629 |
| Random Flag to Country | 0 | - | 4.99 | 389,050 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,096 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,251 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,097,863 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,378 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,708 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,065 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,263 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,930 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,596 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,544 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,746 |
| Battle to Country | 0 | - | 4.89 | 30,641 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,111 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,719 |
| Countries by Former Name | 0 | - | 4.98 | 82,773 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,902 |
| Random European Countries on a Map | 0 | - | 4.98 | 213,211 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,589 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,527,060 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,924 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 261,560 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 381,562 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,655 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,046 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,852 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,681 |
