| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 4.99 | 2,682,737 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,650,668 |
| Planets of the Solar System Quiz | 0 | - | 4.88 | 929,079 |
| U.S. Presidents by Picture | 0 | - | 4.81 | 348,134 |
| Letters of the Greek Alphabet | 0 | - | 4.92 | 500,691 |
| Olympian Gods Quiz | 0 | - | 4.95 | 403,916 |
| English Monarchs Quiz | 0 | - | 4.85 | 379,989 |
| Words for Leaders | 0 | - | 4.66 | 186,173 |
| Communist Countries in History | 0 | - | 4.48 | 383,894 |
| Famous Dictators Quiz #1 | 0 | - | 4.53 | 168,459 |
| Medical Specialties | 0 | - | 4.21 | 77,719 |
| Body Part Words Quiz | 0 | - | 4.34 | 129,932 |
| Mythical Creatures Quiz #1 | 0 | - | 4.89 | 596,147 |
| Figures from Greek Mythology | 0 | - | 4.85 | 150,490 |
| Roman Numeral Decoding Quiz | 0 | - | 4.84 | 342,025 |
| Name that Historical Figure #1 | 0 | - | 4.68 | 263,650 |
| Hollywood Screen Legends Quiz | 0 | - | 3.94 | 32,586 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,426 |
| Prime Ministers of the UK | 0 | - | 4.93 | 321,273 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,019 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,519 |
| International Scientific Units | 0 | - | 4.94 | 111,874 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 154,450 |
| Ye Olde Professions | 0 | - | 4.53 | 120,571 |
| Name that Greek Letter | 0 | - | 4.90 | 256,829 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,549 |
| Countries in World War II | 0 | - | 4.48 | 681,700 |
| Deadliest U.S. Wars | 0 | - | 4.81 | 141,939 |
| Countries in World War I | 0 | - | 4.91 | 183,118 |
| Biggest Nations and Empires Ever | 0 | - | 4.64 | 121,182 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,310 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,455 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,176 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.57 | 391,769 |
| Medical Conditions Quiz | 0 | - | 4.71 | 106,560 |
| Independence from Whom | 0 | - | 4.99 | 153,088 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,836 |
| WWII Trivia #1 | 0 | - | 4.33 | 130,980 |
| Notable People of WWII | 0 | - | 4.48 | 74,035 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,719 |
| Medical Acronyms | 0 | - | 4.35 | 80,705 |
| Speed Symbol by Element | 0 | - | 4.86 | 79,504 |
| WWII Trivia #2 | 0 | - | 4.47 | 76,333 |
| World War I Quiz | 0 | - | 4.53 | 83,045 |
| First Names of U.S. Presidents | 0 | - | 4.87 | 296,819 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,201 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,687 |
| The Bill Clinton Presidency | 0 | - | 4.12 | 28,257 |
| The George H. W. Bush Presidency | 0 | - | 4.34 | 19,029 |
| The Ronald Reagan Presidency | 0 | - | 4.21 | 21,694 |
| Electromagnetic Spectrum | 0 | - | 4.92 | 42,890 |
| The Richard Nixon Presidency | 0 | - | 3.95 | 19,322 |
| The Jimmy Carter Presidency | 0 | - | 4.24 | 16,446 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.37 | 20,354 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,432 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 66,063 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,662 |
| Cold War Trivia #2 | 0 | - | 4.17 | 23,007 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,847 |
| Elemental Words | 0 | - | 4.96 | 42,109 |
| The Diseases They Had | 0 | - | 4.05 | 12,021 |
| Current Events by Year, 1990–2009 | 0 | - | 4.76 | 134,287 |
| Ancient Greek Words | 0 | - | 4.84 | 72,410 |
| Space Exploration Trivia | 0 | - | 4.33 | 31,079 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,454 |
| Important Cities in WWII | 0 | - | 4.37 | 75,891 |
| American Generations | 0 | - | 3.92 | 19,097 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 89,087 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 103,532 |
| The 20th Century | 0 | - | 4.38 | 73,730 |
| WWI A-Z | 0 | - | 4.49 | 30,987 |
| Roman Emperors | 0 | - | 4.95 | 78,889 |
| History by Letter - A | 0 | - | 4.47 | 115,701 |
| History by Letter - B | 0 | - | 4.53 | 132,083 |
| History by Letter - C | 0 | - | 4.64 | 127,713 |
| WWII A-Z #1 | 0 | - | 4.74 | 81,386 |
| WWII A-Z #2 | 0 | - | 4.44 | 43,784 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,884 |
| WWII First Names | 0 | - | 4.37 | 33,732 |
| WWII Movies | 0 | - | 4.16 | 23,965 |
| History by Letter - J | 0 | - | 4.45 | 111,565 |
| Historical City to Country | 0 | - | 4.81 | 66,453 |
| Dumb it Down Doc | 0 | - | 4.04 | 57,914 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,998 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,781 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,486 |
| World Leaders of the World Wars | 0 | - | 4.35 | 30,621 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,896 |
| Name the Virus | 0 | - | 4.78 | 57,478 |
| WWII Geography | 0 | - | 4.73 | 89,031 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,350 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,080 |
| 1960s Decade Quiz #1 | 0 | - | 4.29 | 36,080 |
| 1960s Decade Quiz #2 | 0 | - | 4.32 | 29,553 |
| 1950s Decade Quiz | 0 | - | 4.24 | 35,914 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,269 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 60,153 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,455 |
| Former Countries | 0 | - | 4.52 | 100,495 |
| WWII Decoder | 0 | - | 4.39 | 43,141 |
| Cold War Decoder | 0 | - | 4.54 | 34,149 |
| Top 10 Solar Power Countries | 0 | - | 4.81 | 51,484 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,292 |
| Military History Vocabulary | 0 | - | 4.84 | 52,090 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,536 |
| Noble Gases | 0 | - | 4.81 | 54,413 |
| Countries with Glaciers | 0 | - | 4.97 | 72,726 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,988 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 26,210 |
| Normandy D-Day Beaches | 0 | - | 4.72 | 26,824 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,105 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.47 | 132,446 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,727 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,651 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,586 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 35,438 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,876 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,340 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,968 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,541 |
| Metals of Antiquity | 0 | - | 4.95 | 63,782 |
| The Life of Winston Churchill | 0 | - | 4.06 | 10,558 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,566 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,691 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,277 |
| The Trojan War | 0 | - | 4.84 | 26,032 |
| The Events of 9/11 | 0 | - | 4.14 | 24,845 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,482 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.57 | 49,835 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,700 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,166 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,593 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,381 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,445 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,998 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,198 |
| Medical Vocabulary | 0 | - | 4.47 | 46,879 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 116,496 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.54 | 11,682 |
| Former Flags | 0 | - | 4.96 | 70,777 |
| Former Countries by Territory Map | 0 | - | 4.96 | 75,165 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.09 | 19,954 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,734 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,589 |
| Empires by Maps | 0 | - | 4.99 | 75,662 |
| Cities Bombed During WWII | 0 | - | 4.03 | 24,341 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.40 | 12,371 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 40,628 |
| WWII Figures by Picture | 0 | - | 4.64 | 30,666 |
| Two Letter Roman Numerals | 0 | - | 4.94 | 28,297 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,188 |
| World War II Multiple Choice | 0 | - | 4.36 | 85,434 |
| Territory Changes in World War I | 0 | - | 4.78 | 34,065 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.82 | 17,034 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,481 |
| Countries of the German Empire | 0 | - | 4.36 | 26,695 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,366 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,033 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 126,417 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.55 | 30,269 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,223 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,878 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,522 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,502 |
| Battle to Country | 0 | - | 4.89 | 30,633 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,976 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,807 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,096 |
| Cities by Former Name | 0 | - | 4.82 | 62,758 |
| Countries by Former Name | 0 | - | 4.98 | 82,745 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,882 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.51 | 36,987 |
| Name a Valid Year in History | 0 | - | 4.97 | 38,262 |
| Name a Valid Answer - World War II | 0 | - | 4.44 | 39,025 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 33,158 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,022 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 21,052 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,820 |
| Countries by Founding Story | 0 | - | 4.91 | 48,876 |
| WWI... or WWII? | 0 | - | 4.73 | 83,006 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 50,273 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 98,498 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 41,253 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.99 | 65,967 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.82 | 32,827 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 52,414 |
| Countries of the World in 1444 | 0 | - | 4.95 | 41,482 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.95 | 46,728 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.95 | 18,217 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 53,062 |
| "Second Best" History Edition | 0 | - | 4.93 | 26,396 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 50,174 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.84 | 35,058 |
| Solar System Trivia | 0 | - | 4.84 | 30,180 |
| Countries by Percent WWII Deaths | 0 | - | 4.14 | 21,652 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.21 | 20,372 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 87,258 |
| WWII for Dummies | 0 | - | 4.55 | 59,449 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.37 | 12,410 |
| History: What Came First? #1 | 0 | - | 4.81 | 63,030 |
