| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 4.99 | 2,663,127 |
| U.S. Presidents by Picture | 0 | - | 4.80 | 346,193 |
| Shakespeare's Plays Quiz | 0 | - | 4.36 | 303,105 |
| Letters of the Greek Alphabet | 0 | - | 4.92 | 497,441 |
| Olympian Gods Quiz | 0 | - | 4.95 | 401,916 |
| English Monarchs Quiz | 0 | - | 4.84 | 377,575 |
| Words for Leaders | 0 | - | 4.66 | 184,483 |
| Communist Countries in History | 0 | - | 4.47 | 381,421 |
| Famous Dictators Quiz #1 | 0 | - | 4.52 | 167,801 |
| Mythical Creatures Quiz #1 | 0 | - | 4.89 | 593,230 |
| Figures from Greek Mythology | 0 | - | 4.84 | 149,649 |
| Roman Numeral Decoding Quiz | 0 | - | 4.84 | 339,700 |
| Name that Historical Figure #1 | 0 | - | 4.67 | 261,470 |
| 2010 Year in Review | 0 | - | 3.90 | 46,871 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,705 |
| Prime Ministers of the UK | 0 | - | 4.93 | 319,579 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,417 |
| Ye Olde Professions | 0 | - | 4.53 | 119,893 |
| 2011 Year in Review | 0 | - | 4.12 | 39,100 |
| Name that Greek Letter | 0 | - | 4.93 | 255,504 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,732 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.07 | 839,531 |
| Countries in World War II | 0 | - | 4.47 | 676,343 |
| Deadliest U.S. Wars | 0 | - | 4.81 | 141,162 |
| Countries in World War I | 0 | - | 4.92 | 181,951 |
| Biggest Nations and Empires Ever | 0 | - | 4.64 | 120,641 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.24 | 37,945 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,747 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,472 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,551 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.56 | 389,496 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.33 | 563,708 |
| Independence from Whom | 0 | - | 4.99 | 152,372 |
| Famous Empires in History | 0 | - | 4.81 | 91,678 |
| MLB Baseball by Year, 1960–1989 | 0 | - | 3.95 | 17,524 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.23 | 23,126 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,196 |
| 2012 Year in Review | 0 | - | 3.96 | 43,396 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 295,206 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,531 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,330 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,084 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 65,710 |
| 2013 Year in Review | 0 | - | 4.28 | 37,318 |
| Music by Year, 1990–2009 | 0 | - | 4.13 | 89,862 |
| Music by Year, 1970–1989 | 0 | - | 4.28 | 26,902 |
| Movies by Year, 1990–2009 | 0 | - | 4.12 | 58,935 |
| Movies by Year, 1970–1989 | 0 | - | 4.20 | 22,007 |
| Current Events by Year, 1990–2009 | 0 | - | 4.73 | 133,488 |
| Current Events by Year, 1970–1989 | 0 | - | 4.41 | 55,780 |
| Current Events by Year, 1950–1969 | 0 | - | 4.29 | 40,485 |
| Current Events by Year, 1930–1949 | 0 | - | 4.38 | 44,455 |
| Current Events by Year, 1910–1929 | 0 | - | 4.25 | 34,712 |
| Figures From the 18th Century | 0 | - | 3.93 | 14,560 |
| Ancient Greek Words | 0 | - | 4.83 | 71,389 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 102,661 |
| The 20th Century | 0 | - | 4.38 | 73,531 |
| The 19th Century | 0 | - | 4.38 | 49,097 |
| The 18th Century | 0 | - | 4.42 | 38,325 |
| The 17th Century | 0 | - | 4.38 | 39,714 |
| The 16th Century | 0 | - | 4.72 | 45,813 |
| The 15th Century | 0 | - | 4.33 | 38,943 |
| The 14th Century | 0 | - | 4.41 | 36,860 |
| The 13th Century | 0 | - | 4.35 | 31,163 |
| The 11th and 12th Century | 0 | - | 4.49 | 42,060 |
| Roman Emperors | 0 | - | 4.95 | 78,055 |
| History by Letter - A | 0 | - | 4.47 | 114,146 |
| History by Letter - B | 0 | - | 4.53 | 130,576 |
| History by Letter - C | 0 | - | 4.64 | 126,071 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 180,442 |
| History by Letter - J | 0 | - | 4.45 | 110,285 |
| Historical City to Country | 0 | - | 4.81 | 66,171 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,358 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,432 |
| 2014 Year in Review | 0 | - | 4.32 | 27,689 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,497 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.74 | 36,443 |
| 1990s Decade Quiz | 0 | - | 4.03 | 34,979 |
| 2000s Decade Quiz | 0 | - | 4.08 | 75,980 |
| 1980s Decade Quiz | 0 | - | 4.28 | 53,057 |
| 1970s Decade Quiz | 0 | - | 4.14 | 36,400 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,511 |
| 1960s Decade Quiz #1 | 0 | - | 4.29 | 35,977 |
| 1960s Decade Quiz #2 | 0 | - | 4.32 | 29,434 |
| 1950s Decade Quiz | 0 | - | 4.24 | 35,812 |
| 1940s Decade Quiz | 0 | - | 4.27 | 37,462 |
| 1930s Decade Quiz | 0 | - | 4.16 | 35,250 |
| 1920s Decade Quiz | 0 | - | 4.33 | 35,911 |
| 1910s Decade Quiz | 0 | - | 4.18 | 37,794 |
| 1900s Decade Quiz | 0 | - | 4.18 | 32,049 |
| 1890s Decade Quiz | 0 | - | 4.15 | 29,382 |
| 1880s Decade Quiz | 0 | - | 4.12 | 29,570 |
| 1870s Decade Quiz | 0 | - | 4.19 | 26,638 |
| 1860s Decade Quiz | 0 | - | 4.21 | 29,298 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,682 |
| Former Countries | 0 | - | 4.57 | 100,089 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,901 |
| Military History Vocabulary | 0 | - | 4.84 | 51,766 |
| 2015 Year in Review | 0 | - | 3.90 | 23,426 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,126 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,520 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.84 | 38,469 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,549 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,380 |
| Quiz on the Year 1908 | 0 | - | 4.22 | 9,838 |
| 2016 News Stories - Name the Country | 0 | - | 4.36 | 19,920 |
| 2016 Year in Review | 0 | - | 3.93 | 30,369 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,676 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,576 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,225 |
| Metals of Antiquity | 0 | - | 4.95 | 63,489 |
| 1850s Decade Quiz | 0 | - | 4.25 | 23,948 |
| 1840s Decade Quiz | 0 | - | 4.20 | 26,471 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 141,758 |
| The Trojan War | 0 | - | 4.84 | 25,845 |
| Quiz on the Year 1997 | 0 | - | 4.17 | 16,907 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,232 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,048 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,152 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,703 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 97,324 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 23,878 |
| 2017 Year in Review | 0 | - | 4.41 | 27,177 |
| Quiz on the Year 1998 | 0 | - | 4.28 | 13,327 |
| 16th Century A-Z | 0 | - | 4.44 | 14,136 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 115,657 |
| 20th Century A-Z | 0 | - | 4.36 | 34,323 |
| 19th Century A-Z | 0 | - | 4.67 | 29,612 |
| 17th Century A-Z | 0 | - | 4.45 | 21,167 |
| 18th Century A-Z | 0 | - | 4.57 | 27,604 |
| 15th Century A-Z | 0 | - | 4.33 | 12,912 |
| 14th Century A-Z | 0 | - | 4.24 | 13,328 |
| Former Flags | 0 | - | 4.96 | 70,250 |
| Former Countries by Territory Map | 0 | - | 4.96 | 74,681 |
| The 9th and 10th Century | 0 | - | 4.41 | 25,659 |
| The 5th and 6th Century | 0 | - | 4.56 | 18,733 |
| The 1st and 2nd Century | 0 | - | 4.57 | 19,394 |
| The 1st and 2nd Century BC | 0 | - | 4.40 | 12,908 |
| The 3rd and 4th Century BC | 0 | - | 4.49 | 11,648 |
| The 5th and 6th Century BC | 0 | - | 4.43 | 10,419 |
| The 7th, 8th, 9th and 10th Century BC | 0 | - | 4.56 | 7,964 |
| Countries of the World in 1900 | 0 | - | 4.87 | 51,903 |
| Empires by Maps | 0 | - | 4.99 | 74,771 |
| 2018 News Stories - Name the Country | 0 | - | 4.40 | 19,841 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 40,376 |
| Two Letter Roman Numerals | 0 | - | 4.94 | 27,702 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,033 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.82 | 16,894 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,252 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,035 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,278 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 125,520 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,316 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 104,698 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 79,853 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 73,759 |
| Battle to Country | 0 | - | 4.89 | 30,419 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,078 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,662 |
| Cities by Former Name | 0 | - | 4.82 | 62,411 |
| Countries by Former Name | 0 | - | 4.99 | 82,237 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,368 |
| Name a Valid Year in History | 0 | - | 4.97 | 37,542 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 32,821 |
| 2019 Year in Review | 0 | - | 4.38 | 28,871 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,455 |
| MLB Baseball by Year, 1990–present | 0 | - | 3.69 | 7,933 |
| NBA Basketball by Year, 2000–present | 0 | - | 4.13 | 32,299 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 20,765 |
| The 21st Century | 0 | - | 4.44 | 58,353 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,179 |
| 2019 News Stories - Name the Country | 0 | - | 4.10 | 15,030 |
| NFL Football by Year, 2000–present | 0 | - | 4.26 | 15,762 |
| Countries by Founding Story | 0 | - | 4.91 | 48,629 |
| 2010s Decade Quiz | 0 | - | 4.55 | 53,188 |
| 1830s Decade Quiz | 0 | - | 4.31 | 18,676 |
| 1820s Decade Quiz | 0 | - | 4.40 | 18,603 |
| 1810s Decade Quiz | 0 | - | 4.44 | 18,968 |
| 1800s Decade Quiz | 0 | - | 4.38 | 19,820 |
| 1790s Decade Quiz | 0 | - | 4.39 | 21,442 |
| 1780s Decade Quiz | 0 | - | 4.09 | 16,419 |
| 1770s Decade Quiz | 0 | - | 3.86 | 17,472 |
| 2020 News Stories - Name the Country | 0 | - | 4.32 | 23,704 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 49,698 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 97,265 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 40,822 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 65,297 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.82 | 32,460 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 51,912 |
| 2020 Year in Review | 0 | - | 4.45 | 23,212 |
| Countries of the World in 1444 | 0 | - | 4.95 | 40,987 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.84 | 12,928 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.95 | 46,123 |
| Quiz on the Year 2000 | 0 | - | 4.02 | 16,314 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.96 | 17,946 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 52,557 |
| "Second Best" History Edition | 0 | - | 4.91 | 26,078 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 49,532 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.84 | 34,365 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.98 | 54,610 |
