| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 4.99 | 2,664,852 |
| Letters of the Greek Alphabet | 0 | - | 4.92 | 497,687 |
| Olympian Gods Quiz | 0 | - | 4.95 | 402,080 |
| English Monarchs Quiz | 0 | - | 4.84 | 377,772 |
| Communist Countries in History | 0 | - | 4.47 | 381,609 |
| Mythical Creatures Quiz #1 | 0 | - | 4.89 | 593,476 |
| Figures from Greek Mythology | 0 | - | 4.84 | 149,705 |
| Roman Numeral Decoding Quiz | 0 | - | 4.84 | 339,899 |
| 2010 Year in Review | 0 | - | 3.90 | 46,872 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,742 |
| Prime Ministers of the UK | 0 | - | 4.93 | 319,706 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,460 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,371 |
| 2011 Year in Review | 0 | - | 4.12 | 39,108 |
| Name that Greek Letter | 0 | - | 4.93 | 255,663 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,769 |
| Countries in World War II | 0 | - | 4.47 | 676,775 |
| Deadliest U.S. Wars | 0 | - | 4.81 | 141,238 |
| Countries in World War I | 0 | - | 4.92 | 182,047 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.24 | 37,960 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,794 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,542 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,648 |
| Independence from Whom | 0 | - | 4.99 | 152,439 |
| Famous Empires in History | 0 | - | 4.81 | 91,756 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.23 | 23,130 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,234 |
| WWII Trivia #1 | 0 | - | 4.34 | 130,313 |
| Notable People of WWII | 0 | - | 4.48 | 73,793 |
| 2012 Year in Review | 0 | - | 3.96 | 43,399 |
| WWII Trivia #2 | 0 | - | 4.47 | 76,000 |
| World War I Quiz | 0 | - | 4.52 | 82,724 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 295,345 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,590 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,368 |
| The Bill Clinton Presidency | 0 | - | 4.12 | 28,201 |
| The George H. W. Bush Presidency | 0 | - | 4.33 | 18,977 |
| The Ronald Reagan Presidency | 0 | - | 4.20 | 21,633 |
| The Jimmy Carter Presidency | 0 | - | 4.24 | 16,399 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.37 | 20,277 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,108 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 65,738 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,415 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,876 |
| 2013 Year in Review | 0 | - | 4.28 | 37,324 |
| Music by Year, 1990–2009 | 0 | - | 4.13 | 89,892 |
| Music by Year, 1970–1989 | 0 | - | 4.28 | 26,911 |
| Movies by Year, 1990–2009 | 0 | - | 4.13 | 58,946 |
| Movies by Year, 1970–1989 | 0 | - | 4.20 | 22,010 |
| Current Events by Year, 1990–2009 | 0 | - | 4.73 | 133,518 |
| Current Events by Year, 1970–1989 | 0 | - | 4.41 | 55,795 |
| Current Events by Year, 1950–1969 | 0 | - | 4.29 | 40,495 |
| Current Events by Year, 1930–1949 | 0 | - | 4.38 | 44,474 |
| Current Events by Year, 1910–1929 | 0 | - | 4.25 | 34,725 |
| Figures From the 18th Century | 0 | - | 3.93 | 14,562 |
| Ancient Greek Words | 0 | - | 4.83 | 71,471 |
| Space Exploration Trivia | 0 | - | 4.32 | 30,986 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,142 |
| Important Cities in WWII | 0 | - | 4.37 | 75,677 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 102,724 |
| The 19th Century | 0 | - | 4.38 | 49,107 |
| The 18th Century | 0 | - | 4.42 | 38,342 |
| The 17th Century | 0 | - | 4.38 | 39,729 |
| The 16th Century | 0 | - | 4.72 | 45,826 |
| The 15th Century | 0 | - | 4.33 | 38,955 |
| The 14th Century | 0 | - | 4.41 | 36,877 |
| The 13th Century | 0 | - | 4.35 | 31,180 |
| The 11th and 12th Century | 0 | - | 4.49 | 42,080 |
| WWI A-Z | 0 | - | 4.49 | 30,808 |
| Roman Emperors | 0 | - | 4.95 | 78,121 |
| WWII A-Z #1 | 0 | - | 4.74 | 80,935 |
| WWII A-Z #2 | 0 | - | 4.44 | 43,522 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 180,909 |
| WWII First Names | 0 | - | 4.37 | 33,553 |
| WWII Movies | 0 | - | 4.16 | 23,895 |
| Historical City to Country | 0 | - | 4.81 | 66,188 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,405 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,472 |
| 2014 Year in Review | 0 | - | 4.32 | 27,699 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,359 |
| World Leaders of the World Wars | 0 | - | 4.35 | 30,444 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,530 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.74 | 36,445 |
| WWII Geography | 0 | - | 4.73 | 88,294 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 64,997 |
| 1990s Decade Quiz | 0 | - | 4.03 | 34,986 |
| 2000s Decade Quiz | 0 | - | 4.08 | 75,992 |
| 1980s Decade Quiz | 0 | - | 4.28 | 53,073 |
| 1970s Decade Quiz | 0 | - | 4.14 | 36,410 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,564 |
| 1960s Decade Quiz #1 | 0 | - | 4.29 | 35,987 |
| 1960s Decade Quiz #2 | 0 | - | 4.32 | 29,446 |
| 1950s Decade Quiz | 0 | - | 4.24 | 35,820 |
| 1940s Decade Quiz | 0 | - | 4.27 | 37,470 |
| 1930s Decade Quiz | 0 | - | 4.16 | 35,255 |
| 1920s Decade Quiz | 0 | - | 4.33 | 35,919 |
| 1910s Decade Quiz | 0 | - | 4.18 | 37,801 |
| 1900s Decade Quiz | 0 | - | 4.18 | 32,054 |
| 1890s Decade Quiz | 0 | - | 4.15 | 29,385 |
| 1880s Decade Quiz | 0 | - | 4.12 | 29,576 |
| 1870s Decade Quiz | 0 | - | 4.19 | 26,642 |
| 1860s Decade Quiz | 0 | - | 4.21 | 29,303 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,734 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 59,829 |
| WWII Decoder | 0 | - | 4.39 | 42,904 |
| Cold War Decoder | 0 | - | 4.54 | 33,880 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,934 |
| Military History Vocabulary | 0 | - | 4.84 | 51,789 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,445 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,212 |
| Normandy D-Day Beaches | 0 | - | 4.72 | 26,653 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,557 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,495 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,644 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,488 |
| Quiz on the Year 1908 | 0 | - | 4.22 | 9,848 |
| 2016 News Stories - Name the Country | 0 | - | 4.36 | 19,925 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,692 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,605 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,244 |
| Metals of Antiquity | 0 | - | 4.95 | 63,510 |
| The Life of Winston Churchill | 0 | - | 4.06 | 10,524 |
| 1850s Decade Quiz | 0 | - | 4.25 | 23,954 |
| 1840s Decade Quiz | 0 | - | 4.20 | 26,476 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,180 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 141,852 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,181 |
| The Events of 9/11 | 0 | - | 4.14 | 24,755 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.57 | 49,498 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,524 |
| Quiz on the Year 1997 | 0 | - | 4.17 | 16,910 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,280 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,084 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,183 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,733 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 97,935 |
| 2017 News Stories - Name the Country | 0 | - | 4.47 | 23,891 |
| 2017 Year in Review | 0 | - | 4.41 | 27,187 |
| Quiz on the Year 1998 | 0 | - | 4.28 | 13,334 |
| 16th Century A-Z | 0 | - | 4.44 | 14,143 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 115,717 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.54 | 11,577 |
| 20th Century A-Z | 0 | - | 4.36 | 34,338 |
| 19th Century A-Z | 0 | - | 4.67 | 29,633 |
| 17th Century A-Z | 0 | - | 4.45 | 21,175 |
| 18th Century A-Z | 0 | - | 4.57 | 27,622 |
| 15th Century A-Z | 0 | - | 4.33 | 12,919 |
| 14th Century A-Z | 0 | - | 4.24 | 13,336 |
| Former Flags | 0 | - | 4.96 | 70,302 |
| Former Countries by Territory Map | 0 | - | 4.96 | 74,727 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,506 |
| The 9th and 10th Century | 0 | - | 4.41 | 25,671 |
| The 7th and 8th Century | 0 | - | 4.32 | 21,000 |
| The 5th and 6th Century | 0 | - | 4.56 | 18,744 |
| The 1st and 2nd Century | 0 | - | 4.57 | 19,401 |
| The 1st and 2nd Century BC | 0 | - | 4.40 | 12,915 |
| The 3rd and 4th Century BC | 0 | - | 4.49 | 11,657 |
| The 5th and 6th Century BC | 0 | - | 4.43 | 10,429 |
| The 7th, 8th, 9th and 10th Century BC | 0 | - | 4.56 | 7,976 |
| Countries of the World in 1900 | 0 | - | 4.87 | 51,960 |
| Empires by Maps | 0 | - | 4.99 | 74,866 |
| Cities Bombed During WWII | 0 | - | 4.03 | 24,268 |
| 2018 News Stories - Name the Country | 0 | - | 4.40 | 19,854 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 40,397 |
| WWII Figures by Picture | 0 | - | 4.64 | 30,243 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,129 |
| World War II Multiple Choice | 0 | - | 4.36 | 84,699 |
| Territory Changes in World War I | 0 | - | 4.77 | 33,789 |
| Countries of the German Empire | 0 | - | 4.36 | 26,485 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,071 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,326 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 125,603 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,369 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 104,796 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 79,908 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 73,805 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,785 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,122 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,713 |
| Cities by Former Name | 0 | - | 4.82 | 62,445 |
| Countries by Former Name | 0 | - | 4.99 | 82,266 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,407 |
| Name a Valid Year in History | 0 | - | 4.97 | 37,597 |
| Name a Valid Answer - World War II | 0 | - | 4.43 | 38,766 |
| 2019 Year in Review | 0 | - | 4.38 | 28,882 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,494 |
| NBA Basketball by Year, 2000–present | 0 | - | 4.13 | 32,326 |
| The 21st Century | 0 | - | 4.44 | 58,384 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,221 |
| 2019 News Stories - Name the Country | 0 | - | 4.10 | 15,035 |
| NFL Football by Year, 2000–present | 0 | - | 4.26 | 15,771 |
| Countries by Founding Story | 0 | - | 4.91 | 48,650 |
| 2010s Decade Quiz | 0 | - | 4.54 | 53,215 |
| 1830s Decade Quiz | 0 | - | 4.31 | 18,684 |
| 1820s Decade Quiz | 0 | - | 4.40 | 18,611 |
| 1810s Decade Quiz | 0 | - | 4.44 | 18,978 |
| 1800s Decade Quiz | 0 | - | 4.38 | 19,829 |
| 1790s Decade Quiz | 0 | - | 4.39 | 21,446 |
| 1780s Decade Quiz | 0 | - | 4.09 | 16,422 |
| 2020 News Stories - Name the Country | 0 | - | 4.32 | 23,718 |
