| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 4.99 | 2,674,700 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,645,784 |
| Planets of the Solar System Quiz | 0 | - | 4.88 | 927,557 |
| U.S. Presidents by Picture | 0 | - | 4.81 | 347,211 |
| Letters of the Greek Alphabet | 0 | - | 4.92 | 499,291 |
| Olympian Gods Quiz | 0 | - | 4.95 | 403,017 |
| English Monarchs Quiz | 0 | - | 4.85 | 379,007 |
| Words for Leaders | 0 | - | 4.66 | 185,634 |
| Communist Countries in History | 0 | - | 4.47 | 382,857 |
| Famous Dictators Quiz #1 | 0 | - | 4.52 | 168,218 |
| Medical Specialties | 0 | - | 4.21 | 77,609 |
| Body Part Words Quiz | 0 | - | 4.36 | 129,792 |
| Mythical Creatures Quiz #1 | 0 | - | 4.89 | 594,923 |
| Figures from Greek Mythology | 0 | - | 4.85 | 150,090 |
| Roman Numeral Decoding Quiz | 0 | - | 4.84 | 341,136 |
| Name that Historical Figure #1 | 0 | - | 4.67 | 262,128 |
| Hollywood Screen Legends Quiz | 0 | - | 3.94 | 32,565 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,061 |
| Prime Ministers of the UK | 0 | - | 4.93 | 320,521 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,750 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,452 |
| International Scientific Units | 0 | - | 4.94 | 111,516 |
| Elements by Symbol Quiz | 0 | - | 4.90 | 154,149 |
| Ye Olde Professions | 0 | - | 4.52 | 120,271 |
| Name that Greek Letter | 0 | - | 4.90 | 256,261 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,122 |
| Countries in World War II | 0 | - | 4.47 | 679,446 |
| Deadliest U.S. Wars | 0 | - | 4.81 | 141,619 |
| Countries in World War I | 0 | - | 4.92 | 182,662 |
| Biggest Nations and Empires Ever | 0 | - | 4.63 | 120,970 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,083 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,028 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,944 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.56 | 390,785 |
| Medical Conditions Quiz | 0 | - | 4.71 | 106,422 |
| Independence from Whom | 0 | - | 4.99 | 152,804 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,569 |
| WWII Trivia #1 | 0 | - | 4.34 | 130,675 |
| Notable People of WWII | 0 | - | 4.48 | 73,928 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,519 |
| Medical Acronyms | 0 | - | 4.35 | 80,594 |
| Speed Symbol by Element | 0 | - | 4.85 | 79,368 |
| WWII Trivia #2 | 0 | - | 4.47 | 76,192 |
| World War I Quiz | 0 | - | 4.52 | 82,897 |
| First Names of U.S. Presidents | 0 | - | 4.87 | 296,165 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,925 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,533 |
| The Bill Clinton Presidency | 0 | - | 4.12 | 28,240 |
| The George H. W. Bush Presidency | 0 | - | 4.33 | 19,002 |
| The Ronald Reagan Presidency | 0 | - | 4.20 | 21,666 |
| Electromagnetic Spectrum | 0 | - | 4.92 | 42,764 |
| The Richard Nixon Presidency | 0 | - | 3.95 | 19,299 |
| The Jimmy Carter Presidency | 0 | - | 4.24 | 16,426 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.37 | 20,325 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,282 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 65,917 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,552 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,943 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,666 |
| Elemental Words | 0 | - | 4.96 | 41,992 |
| The Diseases They Had | 0 | - | 4.05 | 12,008 |
| Current Events by Year, 1990–2009 | 0 | - | 4.74 | 133,723 |
| Ancient Greek Words | 0 | - | 4.83 | 71,971 |
| Space Exploration Trivia | 0 | - | 4.32 | 31,033 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,305 |
| Important Cities in WWII | 0 | - | 4.37 | 75,802 |
| American Generations | 0 | - | 3.92 | 19,084 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 88,922 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 103,292 |
| The 20th Century | 0 | - | 4.38 | 73,647 |
| WWI A-Z | 0 | - | 4.49 | 30,903 |
| Roman Emperors | 0 | - | 4.95 | 78,442 |
| History by Letter - A | 0 | - | 4.47 | 115,419 |
| History by Letter - B | 0 | - | 4.52 | 131,773 |
| History by Letter - C | 0 | - | 4.64 | 127,361 |
| WWII A-Z #1 | 0 | - | 4.74 | 81,187 |
| WWII A-Z #2 | 0 | - | 4.44 | 43,658 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,448 |
| WWII First Names | 0 | - | 4.37 | 33,652 |
| WWII Movies | 0 | - | 4.16 | 23,935 |
| History by Letter - J | 0 | - | 4.45 | 111,275 |
| Historical City to Country | 0 | - | 4.81 | 66,337 |
| Dumb it Down Doc | 0 | - | 4.04 | 57,865 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,724 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,660 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,428 |
| World Leaders of the World Wars | 0 | - | 4.35 | 30,545 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,724 |
| Name the Virus | 0 | - | 4.79 | 57,381 |
| WWII Geography | 0 | - | 4.73 | 88,524 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,185 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,851 |
| 1960s Decade Quiz #1 | 0 | - | 4.29 | 36,042 |
| 1960s Decade Quiz #2 | 0 | - | 4.32 | 29,502 |
| 1950s Decade Quiz | 0 | - | 4.24 | 35,872 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,017 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 59,998 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,379 |
| Former Countries | 0 | - | 4.52 | 100,312 |
| WWII Decoder | 0 | - | 4.39 | 43,029 |
| Cold War Decoder | 0 | - | 4.54 | 34,050 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,136 |
| Military History Vocabulary | 0 | - | 4.84 | 51,954 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,491 |
| Noble Gases | 0 | - | 4.81 | 54,311 |
| Countries with Glaciers | 0 | - | 4.97 | 72,597 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,633 |
| Science General Knowledge #1 | 0 | - | 4.52 | 121,503 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 26,150 |
| Normandy D-Day Beaches | 0 | - | 4.71 | 26,753 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,822 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.46 | 132,039 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,631 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,251 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,123 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 35,097 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,781 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,244 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,791 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,401 |
| Metals of Antiquity | 0 | - | 4.95 | 63,656 |
| The Life of Winston Churchill | 0 | - | 4.06 | 10,545 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,382 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,313 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,240 |
| The Trojan War | 0 | - | 4.83 | 25,940 |
| The Events of 9/11 | 0 | - | 4.14 | 24,808 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,436 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.56 | 49,674 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,631 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,148 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,460 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,246 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,345 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,880 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,925 |
| Medical Vocabulary | 0 | - | 4.47 | 46,759 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 116,142 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.54 | 11,642 |
| Former Flags | 0 | - | 4.96 | 70,553 |
| Former Countries by Territory Map | 0 | - | 4.96 | 74,972 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.09 | 19,923 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,621 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,277 |
| Empires by Maps | 0 | - | 4.99 | 75,271 |
| Cities Bombed During WWII | 0 | - | 4.03 | 24,308 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.40 | 12,336 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 40,511 |
| WWII Figures by Picture | 0 | - | 4.64 | 30,460 |
| Two Letter Roman Numerals | 0 | - | 4.94 | 28,055 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,660 |
| World War II Multiple Choice | 0 | - | 4.36 | 85,260 |
| Territory Changes in World War I | 0 | - | 4.78 | 33,935 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.82 | 16,970 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,379 |
| Countries of the German Empire | 0 | - | 4.36 | 26,616 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,201 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,716 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 126,043 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.55 | 30,182 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,805 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,376 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,262 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,208 |
| Battle to Country | 0 | - | 4.89 | 30,548 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,902 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,487 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,932 |
| Cities by Former Name | 0 | - | 4.82 | 62,619 |
| Countries by Former Name | 0 | - | 4.99 | 82,524 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,655 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.51 | 36,893 |
| Name a Valid Year in History | 0 | - | 4.97 | 37,966 |
| Name a Valid Answer - World War II | 0 | - | 4.43 | 38,921 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 33,018 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,807 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 20,935 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,519 |
| Countries by Founding Story | 0 | - | 4.91 | 48,783 |
| WWI... or WWII? | 0 | - | 4.78 | 82,632 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 50,017 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 98,000 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 41,078 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 65,674 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.82 | 32,677 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 52,193 |
| Countries of the World in 1444 | 0 | - | 4.95 | 41,266 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.96 | 46,464 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.95 | 18,122 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 52,841 |
| "Second Best" History Edition | 0 | - | 4.91 | 26,261 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 49,868 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.84 | 34,789 |
| Solar System Trivia | 0 | - | 4.83 | 29,947 |
| Countries by Percent WWII Deaths | 0 | - | 4.14 | 21,569 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.21 | 20,328 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 86,829 |
| WWII for Dummies | 0 | - | 4.54 | 59,162 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.37 | 12,366 |
| History: What Came First? #1 | 0 | - | 4.81 | 62,760 |
