| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 4.99 | 2,687,122 |
| U.S. Presidents by Picture | 0 | - | 4.82 | 348,589 |
| Letters of the Greek Alphabet | 0 | - | 4.92 | 501,429 |
| Olympian Gods Quiz | 0 | - | 4.95 | 404,322 |
| English Monarchs Quiz | 0 | - | 4.86 | 380,671 |
| Communist Countries in History | 0 | - | 4.48 | 384,469 |
| Mythical Creatures Quiz #1 | 0 | - | 4.89 | 596,827 |
| Figures from Greek Mythology | 0 | - | 4.85 | 150,682 |
| Roman Numeral Decoding Quiz | 0 | - | 4.85 | 342,521 |
| 2010 Year in Review | 0 | - | 3.90 | 46,946 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,576 |
| Prime Ministers of the UK | 0 | - | 4.93 | 321,728 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,130 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,562 |
| 2011 Year in Review | 0 | - | 4.12 | 39,213 |
| Name that Greek Letter | 0 | - | 4.90 | 257,137 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,672 |
| Countries in World War II | 0 | - | 4.48 | 682,943 |
| Deadliest U.S. Wars | 0 | - | 4.81 | 142,091 |
| Countries in World War I | 0 | - | 4.91 | 183,400 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.24 | 38,196 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,415 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,682 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,271 |
| Independence from Whom | 0 | - | 4.99 | 153,249 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.24 | 23,190 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,978 |
| WWII Trivia #1 | 0 | - | 4.33 | 131,154 |
| Notable People of WWII | 0 | - | 4.48 | 74,109 |
| 2012 Year in Review | 0 | - | 3.96 | 43,465 |
| WWII Trivia #2 | 0 | - | 4.47 | 76,425 |
| World War I Quiz | 0 | - | 4.54 | 83,131 |
| First Names of U.S. Presidents | 0 | - | 4.87 | 297,544 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,337 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,774 |
| The Bill Clinton Presidency | 0 | - | 4.12 | 28,277 |
| The George H. W. Bush Presidency | 0 | - | 4.34 | 19,048 |
| The Ronald Reagan Presidency | 0 | - | 4.21 | 21,716 |
| The Jimmy Carter Presidency | 0 | - | 4.24 | 16,467 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.37 | 20,376 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,499 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 66,141 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,735 |
| Cold War Trivia #2 | 0 | - | 4.17 | 23,038 |
| 2013 Year in Review | 0 | - | 4.28 | 37,458 |
| Music by Year, 1990–2009 | 0 | - | 4.13 | 91,425 |
| Music by Year, 1970–1989 | 0 | - | 4.15 | 34,599 |
| Movies by Year, 1990–2009 | 0 | - | 4.13 | 59,202 |
| Movies by Year, 1970–1989 | 0 | - | 4.20 | 22,091 |
| Current Events by Year, 1990–2009 | 0 | - | 4.74 | 134,479 |
| Current Events by Year, 1970–1989 | 0 | - | 4.43 | 56,511 |
| Current Events by Year, 1950–1969 | 0 | - | 4.27 | 41,167 |
| Current Events by Year, 1930–1949 | 0 | - | 4.40 | 45,277 |
| Current Events by Year, 1910–1929 | 0 | - | 4.29 | 41,943 |
| Figures From the 18th Century | 0 | - | 3.93 | 14,578 |
| Ancient Greek Words | 0 | - | 4.84 | 72,631 |
| Space Exploration Trivia | 0 | - | 4.33 | 31,102 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,529 |
| Important Cities in WWII | 0 | - | 4.37 | 75,949 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 103,673 |
| The 19th Century | 0 | - | 4.38 | 49,290 |
| The 18th Century | 0 | - | 4.42 | 38,510 |
| The 17th Century | 0 | - | 4.38 | 39,883 |
| The 16th Century | 0 | - | 4.68 | 46,001 |
| The 15th Century | 0 | - | 4.30 | 39,077 |
| The 14th Century | 0 | - | 4.41 | 36,997 |
| The 13th Century | 0 | - | 4.35 | 31,294 |
| The 11th and 12th Century | 0 | - | 4.49 | 42,244 |
| WWI A-Z | 0 | - | 4.49 | 31,039 |
| Roman Emperors | 0 | - | 4.95 | 79,030 |
| WWII A-Z #1 | 0 | - | 4.74 | 81,505 |
| WWII A-Z #2 | 0 | - | 4.44 | 43,861 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 182,144 |
| WWII First Names | 0 | - | 4.37 | 33,786 |
| WWII Movies | 0 | - | 4.16 | 23,987 |
| Historical City to Country | 0 | - | 4.81 | 66,527 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,115 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,859 |
| 2014 Year in Review | 0 | - | 4.32 | 27,839 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,525 |
| World Leaders of the World Wars | 0 | - | 4.35 | 30,672 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,993 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.74 | 36,504 |
| WWII Geography | 0 | - | 4.74 | 89,134 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,451 |
| 1990s Decade Quiz | 0 | - | 4.03 | 35,090 |
| 2000s Decade Quiz | 0 | - | 4.08 | 76,205 |
| 1980s Decade Quiz | 0 | - | 4.28 | 53,254 |
| 1970s Decade Quiz | 0 | - | 4.14 | 36,528 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 129,201 |
| 1960s Decade Quiz #1 | 0 | - | 4.29 | 36,101 |
| 1960s Decade Quiz #2 | 0 | - | 4.32 | 29,575 |
| 1950s Decade Quiz | 0 | - | 4.25 | 35,932 |
| 1940s Decade Quiz | 0 | - | 4.27 | 37,596 |
| 1930s Decade Quiz | 0 | - | 4.16 | 35,344 |
| 1920s Decade Quiz | 0 | - | 4.33 | 36,039 |
| 1910s Decade Quiz | 0 | - | 4.18 | 37,890 |
| 1900s Decade Quiz | 0 | - | 4.18 | 32,128 |
| 1890s Decade Quiz | 0 | - | 4.15 | 29,455 |
| 1880s Decade Quiz | 0 | - | 4.12 | 29,649 |
| 1870s Decade Quiz | 0 | - | 4.19 | 26,719 |
| 1860s Decade Quiz | 0 | - | 4.21 | 29,384 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,398 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 60,225 |
| WWII Decoder | 0 | - | 4.39 | 43,204 |
| Cold War Decoder | 0 | - | 4.54 | 34,217 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,394 |
| Military History Vocabulary | 0 | - | 4.84 | 52,177 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,549 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,170 |
| Normandy D-Day Beaches | 0 | - | 4.72 | 26,856 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,288 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,902 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,814 |
| Quiz on the Year 1908 | 0 | - | 4.22 | 9,933 |
| 2016 News Stories - Name the Country | 0 | - | 4.36 | 20,053 |
| Most Recently-Settled Countries | 0 | - | 4.90 | 44,925 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,052 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,641 |
| Metals of Antiquity | 0 | - | 4.95 | 63,844 |
| The Life of Winston Churchill | 0 | - | 4.06 | 10,562 |
| 1850s Decade Quiz | 0 | - | 4.25 | 24,037 |
| 1840s Decade Quiz | 0 | - | 4.20 | 26,556 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,678 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,916 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,304 |
| The Events of 9/11 | 0 | - | 4.14 | 24,870 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.63 | 49,919 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,744 |
| Quiz on the Year 1997 | 0 | - | 4.17 | 16,988 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,662 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,450 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,520 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,075 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,305 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,072 |
| 2017 Year in Review | 0 | - | 4.41 | 27,325 |
| Quiz on the Year 1998 | 0 | - | 4.28 | 13,418 |
| 16th Century A-Z | 0 | - | 4.44 | 14,257 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 116,790 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.54 | 11,708 |
| 20th Century A-Z | 0 | - | 4.36 | 34,551 |
| 19th Century A-Z | 0 | - | 4.67 | 29,903 |
| 17th Century A-Z | 0 | - | 4.45 | 21,335 |
| 18th Century A-Z | 0 | - | 4.57 | 27,862 |
| 15th Century A-Z | 0 | - | 4.33 | 13,038 |
| 14th Century A-Z | 0 | - | 4.24 | 13,474 |
| Former Flags | 0 | - | 4.96 | 70,891 |
| Former Countries by Territory Map | 0 | - | 4.96 | 75,281 |
| Roman Provinces on a Map | 0 | - | 4.74 | 25,808 |
| The 9th and 10th Century | 0 | - | 4.41 | 25,798 |
| The 7th and 8th Century | 0 | - | 4.32 | 21,081 |
| The 5th and 6th Century | 0 | - | 4.64 | 18,873 |
| The 1st and 2nd Century | 0 | - | 4.57 | 19,544 |
| The 1st and 2nd Century BC | 0 | - | 4.40 | 13,031 |
| The 3rd and 4th Century BC | 0 | - | 4.39 | 11,768 |
| The 5th and 6th Century BC | 0 | - | 4.43 | 10,540 |
| The 7th, 8th, 9th and 10th Century BC | 0 | - | 4.57 | 8,100 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,761 |
| Empires by Maps | 0 | - | 4.99 | 75,839 |
| Cities Bombed During WWII | 0 | - | 4.03 | 24,364 |
| 2018 News Stories - Name the Country | 0 | - | 4.40 | 20,018 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 40,684 |
| WWII Figures by Picture | 0 | - | 4.64 | 30,745 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,486 |
| World War II Multiple Choice | 0 | - | 4.36 | 85,548 |
| Territory Changes in World War I | 0 | - | 4.78 | 34,128 |
| Countries of the German Empire | 0 | - | 4.36 | 26,757 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,436 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,235 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 126,622 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,403 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 106,183 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,679 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,660 |
| Countries of the Italian Empire | 0 | - | 4.19 | 20,033 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,970 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,189 |
| Cities by Former Name | 0 | - | 4.82 | 62,847 |
| Countries by Former Name | 0 | - | 4.98 | 82,860 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,995 |
| Name a Valid Year in History | 0 | - | 4.97 | 38,423 |
| Name a Valid Answer - World War II | 0 | - | 4.44 | 39,117 |
| 2019 Year in Review | 0 | - | 4.38 | 29,040 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,179 |
| NBA Basketball by Year, 2000–present | 0 | - | 4.13 | 32,764 |
| The 21st Century | 0 | - | 4.44 | 58,760 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,950 |
| 2019 News Stories - Name the Country | 0 | - | 4.08 | 15,133 |
| NFL Football by Year, 2000–present | 0 | - | 4.20 | 15,901 |
| Countries by Founding Story | 0 | - | 4.91 | 48,927 |
| 2010s Decade Quiz | 0 | - | 4.55 | 53,641 |
| 1830s Decade Quiz | 0 | - | 4.33 | 18,785 |
| 1820s Decade Quiz | 0 | - | 4.40 | 18,689 |
| 1810s Decade Quiz | 0 | - | 4.44 | 19,074 |
| 1800s Decade Quiz | 0 | - | 4.38 | 19,935 |
| 1790s Decade Quiz | 0 | - | 4.39 | 21,541 |
| 1780s Decade Quiz | 0 | - | 4.09 | 16,468 |
| 2020 News Stories - Name the Country | 0 | - | 4.32 | 23,920 |
| WWI... or WWII? | 0 | - | 4.74 | 83,213 |
