| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 4.99 | 2,671,785 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,644,117 |
| Planets of the Solar System Quiz | 0 | - | 4.88 | 926,975 |
| U.S. Presidents by Picture | 0 | - | 4.80 | 346,912 |
| Letters of the Greek Alphabet | 0 | - | 4.92 | 498,824 |
| Olympian Gods Quiz | 0 | - | 4.95 | 402,688 |
| English Monarchs Quiz | 0 | - | 4.84 | 378,647 |
| Words for Leaders | 0 | - | 4.66 | 185,068 |
| Communist Countries in History | 0 | - | 4.47 | 382,476 |
| Famous Dictators Quiz #1 | 0 | - | 4.52 | 168,105 |
| Medical Specialties | 0 | - | 4.21 | 77,556 |
| Body Part Words Quiz | 0 | - | 4.36 | 129,741 |
| Mythical Creatures Quiz #1 | 0 | - | 4.89 | 594,397 |
| Figures from Greek Mythology | 0 | - | 4.85 | 149,951 |
| Roman Numeral Decoding Quiz | 0 | - | 4.84 | 340,783 |
| Name that Historical Figure #1 | 0 | - | 4.67 | 261,936 |
| Hollywood Screen Legends Quiz | 0 | - | 3.94 | 32,561 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,954 |
| Prime Ministers of the UK | 0 | - | 4.93 | 320,299 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,660 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,434 |
| International Scientific Units | 0 | - | 4.94 | 111,384 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 154,021 |
| Ye Olde Professions | 0 | - | 4.52 | 120,181 |
| Name that Greek Letter | 0 | - | 4.92 | 256,085 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,966 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.06 | 841,270 |
| Countries in World War II | 0 | - | 4.47 | 678,638 |
| Deadliest U.S. Wars | 0 | - | 4.81 | 141,499 |
| Countries in World War I | 0 | - | 4.92 | 182,460 |
| Biggest Nations and Empires Ever | 0 | - | 4.64 | 120,873 |
| Most Common Elements in the Human Body | 0 | - | 4.67 | 113,794 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,006 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,874 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,868 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.56 | 390,430 |
| Medical Conditions Quiz | 0 | - | 4.71 | 106,360 |
| Independence from Whom | 0 | - | 4.99 | 152,684 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,466 |
| WWII Trivia #1 | 0 | - | 4.34 | 130,550 |
| Notable People of WWII | 0 | - | 4.48 | 73,888 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,436 |
| Medical Acronyms | 0 | - | 4.35 | 80,538 |
| Speed Symbol by Element | 0 | - | 4.85 | 79,306 |
| WWII Trivia #2 | 0 | - | 4.47 | 76,118 |
| World War I Quiz | 0 | - | 4.52 | 82,842 |
| First Names of U.S. Presidents | 0 | - | 4.87 | 295,909 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,822 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,471 |
| The Bill Clinton Presidency | 0 | - | 4.12 | 28,227 |
| The George H. W. Bush Presidency | 0 | - | 4.33 | 18,995 |
| The Ronald Reagan Presidency | 0 | - | 4.20 | 21,658 |
| Electromagnetic Spectrum | 0 | - | 4.92 | 42,731 |
| The Richard Nixon Presidency | 0 | - | 3.95 | 19,295 |
| The Jimmy Carter Presidency | 0 | - | 4.24 | 16,418 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.37 | 20,313 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,238 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 65,859 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,508 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,916 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,612 |
| Elemental Words | 0 | - | 4.96 | 41,932 |
| The Diseases They Had | 0 | - | 4.05 | 12,003 |
| Current Events by Year, 1990–2009 | 0 | - | 4.74 | 133,629 |
| Ancient Greek Words | 0 | - | 4.83 | 71,809 |
| Space Exploration Trivia | 0 | - | 4.32 | 31,019 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,245 |
| Important Cities in WWII | 0 | - | 4.37 | 75,761 |
| American Generations | 0 | - | 3.92 | 19,076 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 88,857 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 103,166 |
| The 20th Century | 0 | - | 4.38 | 73,612 |
| WWI A-Z | 0 | - | 4.49 | 30,882 |
| Roman Emperors | 0 | - | 4.95 | 78,341 |
| History by Letter - A | 0 | - | 4.47 | 115,216 |
| History by Letter - B | 0 | - | 4.52 | 131,582 |
| History by Letter - C | 0 | - | 4.64 | 127,124 |
| WWII A-Z #1 | 0 | - | 4.74 | 81,104 |
| WWII A-Z #2 | 0 | - | 4.44 | 43,613 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,264 |
| WWII First Names | 0 | - | 4.37 | 33,616 |
| WWII Movies | 0 | - | 4.16 | 23,921 |
| History by Letter - J | 0 | - | 4.45 | 111,088 |
| Historical City to Country | 0 | - | 4.81 | 66,294 |
| Dumb it Down Doc | 0 | - | 4.04 | 57,844 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,621 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,605 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,415 |
| World Leaders of the World Wars | 0 | - | 4.35 | 30,510 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,657 |
| Name the Virus | 0 | - | 4.79 | 57,352 |
| WWII Geography | 0 | - | 4.73 | 88,446 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,116 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,771 |
| 1960s Decade Quiz #1 | 0 | - | 4.29 | 36,026 |
| 1960s Decade Quiz #2 | 0 | - | 4.32 | 29,490 |
| 1950s Decade Quiz | 0 | - | 4.24 | 35,856 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,924 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 59,952 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,359 |
| Former Countries | 0 | - | 4.52 | 100,256 |
| WWII Decoder | 0 | - | 4.39 | 42,982 |
| Cold War Decoder | 0 | - | 4.54 | 33,990 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,069 |
| Military History Vocabulary | 0 | - | 4.84 | 51,896 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,474 |
| Countries with Glaciers | 0 | - | 4.97 | 72,546 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,488 |
| Science General Knowledge #1 | 0 | - | 4.52 | 121,396 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 26,121 |
| Normandy D-Day Beaches | 0 | - | 4.71 | 26,721 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,731 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.46 | 131,869 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,586 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,073 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,921 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 34,959 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,751 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,213 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,730 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,360 |
| Metals of Antiquity | 0 | - | 4.95 | 63,606 |
| The Life of Winston Churchill | 0 | - | 4.06 | 10,536 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,322 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,172 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,215 |
| The Trojan War | 0 | - | 4.84 | 25,917 |
| The Events of 9/11 | 0 | - | 4.14 | 24,789 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,421 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.56 | 49,613 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,603 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,143 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,410 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,199 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,294 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,840 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,761 |
| Medical Vocabulary | 0 | - | 4.47 | 46,716 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 115,994 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.54 | 11,618 |
| Former Flags | 0 | - | 4.96 | 70,483 |
| Former Countries by Territory Map | 0 | - | 4.96 | 74,899 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.09 | 19,907 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,583 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,186 |
| Empires by Maps | 0 | - | 4.99 | 75,158 |
| Cities Bombed During WWII | 0 | - | 4.03 | 24,295 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.40 | 12,317 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 40,485 |
| WWII Figures by Picture | 0 | - | 4.64 | 30,388 |
| Two Letter Roman Numerals | 0 | - | 4.94 | 27,961 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,476 |
| World War II Multiple Choice | 0 | - | 4.36 | 84,816 |
| Territory Changes in World War I | 0 | - | 4.77 | 33,893 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.82 | 16,951 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,353 |
| Countries of the German Empire | 0 | - | 4.36 | 26,580 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,162 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,600 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 125,897 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.55 | 30,141 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,668 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,190 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,151 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,094 |
| Battle to Country | 0 | - | 4.89 | 30,505 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,870 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,369 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,870 |
| Cities by Former Name | 0 | - | 4.82 | 62,567 |
| Countries by Former Name | 0 | - | 4.99 | 82,437 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,590 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.51 | 36,858 |
| Name a Valid Year in History | 0 | - | 4.97 | 37,870 |
| Name a Valid Answer - World War II | 0 | - | 4.43 | 38,876 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 32,973 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,682 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 20,887 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,403 |
| Countries by Founding Story | 0 | - | 4.91 | 48,748 |
| WWI... or WWII? | 0 | - | 4.78 | 82,458 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 49,906 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 97,800 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 40,996 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 65,549 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.82 | 32,613 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 52,119 |
| Countries of the World in 1444 | 0 | - | 4.95 | 41,149 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.95 | 46,371 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.94 | 18,084 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 52,764 |
| "Second Best" History Edition | 0 | - | 4.91 | 26,219 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 49,789 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.84 | 34,688 |
| Solar System Trivia | 0 | - | 4.83 | 29,849 |
| Countries by Percent WWII Deaths | 0 | - | 4.14 | 21,532 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.21 | 20,304 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 86,676 |
| WWII for Dummies | 0 | - | 4.54 | 59,059 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.37 | 12,349 |
