| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 5.00 | 2,845,333 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,753,353 |
| Planets of the Solar System Quiz | 0 | - | 4.88 | 957,097 |
| U.S. Presidents by Picture | 0 | - | 4.76 | 362,796 |
| Letters of the Greek Alphabet | 0 | - | 4.93 | 528,563 |
| Olympian Gods Quiz | 0 | - | 4.95 | 421,569 |
| English Monarchs Quiz | 0 | - | 4.82 | 403,158 |
| Words for Leaders | 0 | - | 4.70 | 196,839 |
| Communist Countries in History | 0 | - | 4.43 | 405,367 |
| Famous Dictators Quiz #1 | 0 | - | 4.62 | 173,697 |
| Medical Specialties | 0 | - | 4.28 | 80,285 |
| Body Part Words Quiz | 0 | - | 4.38 | 133,212 |
| Mythical Creatures Quiz #1 | 0 | - | 4.88 | 618,022 |
| Figures from Greek Mythology | 0 | - | 4.84 | 157,258 |
| Roman Numeral Decoding Quiz | 0 | - | 4.82 | 359,863 |
| Name that Historical Figure #1 | 0 | - | 4.60 | 275,242 |
| Hollywood Screen Legends Quiz | 0 | - | 3.96 | 32,945 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 211,949 |
| Prime Ministers of the UK | 0 | - | 4.92 | 349,474 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 145,975 |
| Former Capitals Quiz | 0 | - | 4.75 | 56,154 |
| International Scientific Units | 0 | - | 4.94 | 125,934 |
| Elements by Symbol Quiz | 0 | - | 4.89 | 161,745 |
| Ye Olde Professions | 0 | - | 4.60 | 126,265 |
| Name that Greek Letter | 0 | - | 4.90 | 269,087 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 136,455 |
| Countries in World War II | 0 | - | 4.43 | 721,375 |
| Deadliest U.S. Wars | 0 | - | 4.79 | 148,130 |
| Countries in World War I | 0 | - | 4.90 | 193,410 |
| Biggest Nations and Empires Ever | 0 | - | 4.49 | 125,265 |
| Countries Bordering China Since 1914 | 0 | - | 4.90 | 81,179 |
| Countries of the Soviet Union | 0 | - | 4.98 | 156,597 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 95,734 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.48 | 412,185 |
| Medical Conditions Quiz | 0 | - | 4.74 | 110,126 |
| Independence from Whom | 0 | - | 4.99 | 172,061 |
| Biggest English Cities by Century | 0 | - | 4.92 | 91,438 |
| WWII Trivia #1 | 0 | - | 4.32 | 136,608 |
| Notable People of WWII | 0 | - | 4.45 | 75,996 |
| Who Controlled These Colonies? | 0 | - | 4.82 | 104,765 |
| Medical Acronyms | 0 | - | 4.35 | 83,373 |
| Speed Symbol by Element | 0 | - | 4.85 | 83,411 |
| WWII Trivia #2 | 0 | - | 4.43 | 79,329 |
| World War I Quiz | 0 | - | 4.70 | 86,394 |
| First Names of U.S. Presidents | 0 | - | 4.83 | 313,587 |
| Most Populous Countries in 1900 | 0 | - | 4.88 | 152,858 |
| Warsaw Pact Countries | 0 | - | 4.88 | 67,157 |
| The Bill Clinton Presidency | 0 | - | 4.11 | 28,896 |
| The George H. W. Bush Presidency | 0 | - | 4.34 | 19,598 |
| The Ronald Reagan Presidency | 0 | - | 4.23 | 22,393 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 44,660 |
| The Richard Nixon Presidency | 0 | - | 3.98 | 19,833 |
| The Jimmy Carter Presidency | 0 | - | 4.29 | 17,010 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 21,171 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 61,585 |
| Cold War Trivia #1 | 0 | - | 4.32 | 51,400 |
| Cold War Trivia #2 | 0 | - | 4.25 | 23,950 |
| Countries with the Most Forest | 0 | - | 4.88 | 129,549 |
| Elemental Words | 0 | - | 4.96 | 44,216 |
| The Diseases They Had | 0 | - | 4.13 | 12,455 |
| Current Events by Year, 1990–2009 | 0 | - | 4.75 | 138,108 |
| Ancient Greek Words | 0 | - | 4.86 | 86,330 |
| Space Exploration Trivia | 0 | - | 4.31 | 32,064 |
| Most Populous Countries in 1950 | 0 | - | 4.45 | 66,388 |
| Important Cities in WWII | 0 | - | 4.41 | 78,385 |
| American Generations | 0 | - | 3.95 | 19,309 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 92,148 |
| Confederate States of the U.S. Civil War | 0 | - | 4.90 | 108,593 |
| The 20th Century | 0 | - | 4.39 | 75,398 |
| WWI A-Z | 0 | - | 4.49 | 32,716 |
| Roman Emperors | 0 | - | 4.95 | 84,570 |
| History by Letter - A | 0 | - | 4.51 | 125,399 |
| History by Letter - B | 0 | - | 4.49 | 142,108 |
| History by Letter - C | 0 | - | 4.70 | 138,161 |
| History by Letter - E | 0 | - | 4.44 | 116,312 |
| WWII A-Z #1 | 0 | - | 4.76 | 85,931 |
| WWII A-Z #2 | 0 | - | 4.45 | 46,226 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 191,441 |
| WWII First Names | 0 | - | 4.45 | 35,764 |
| WWII Movies | 0 | - | 4.18 | 24,662 |
| History by Letter - J | 0 | - | 4.44 | 127,945 |
| Dumb it Down Doc | 0 | - | 4.06 | 59,300 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 80,161 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 64,139 |
| World Leaders of the Cold War | 0 | - | 4.24 | 20,500 |
| World Leaders of the World Wars | 0 | - | 4.34 | 31,910 |
| Countries Settled by Vikings | 0 | - | 4.93 | 105,181 |
| Name the Virus | 0 | - | 4.69 | 59,213 |
| WWII Geography | 0 | - | 4.76 | 92,839 |
| Soviet Leaders 1917–1991 | 0 | - | 4.32 | 69,431 |
| Countries that Bordered the USSR | 0 | - | 4.92 | 134,163 |
| 1960s Decade Quiz #1 | 0 | - | 4.27 | 37,754 |
| 1960s Decade Quiz #2 | 0 | - | 4.34 | 31,321 |
| 1950s Decade Quiz | 0 | - | 4.23 | 37,331 |
| Biggest European Cities by Century | 0 | - | 4.95 | 111,040 |
| Countries Invaded by the USSR | 0 | - | 4.24 | 63,747 |
| Countries with the Most HIV | 0 | - | 4.47 | 40,984 |
| Former Countries | 0 | - | 4.62 | 117,757 |
| WWII Decoder | 0 | - | 4.42 | 45,366 |
| Cold War Decoder | 0 | - | 4.62 | 43,923 |
| Top 10 Solar Power Countries | 0 | - | 4.83 | 53,720 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.93 | 63,918 |
| Military History Vocabulary | 0 | - | 4.89 | 55,004 |
| Biggest Axis-Controlled Cities | 0 | - | 4.25 | 32,416 |
| Countries with Glaciers | 0 | - | 4.97 | 75,361 |
| Neutral European Countries of WWII | 0 | - | 4.93 | 118,498 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 28,010 |
| Normandy D-Day Beaches | 0 | - | 4.76 | 34,490 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 70,103 |
| Countries the UK Declared War On | 0 | - | 4.60 | 104,335 |
| Countries of Europe After World War II | 0 | - | 4.97 | 154,279 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 122,800 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 41,902 |
| Most Recently-Settled Countries | 0 | - | 4.88 | 46,455 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.88 | 45,742 |
| Biggest Roman Empire Countries | 0 | - | 4.84 | 76,984 |
| Biggest Mongol Empire Countries | 0 | - | 4.90 | 63,735 |
| Metals of Antiquity | 0 | - | 4.95 | 66,432 |
| The Life of Winston Churchill | 0 | - | 4.08 | 10,903 |
| Soviet Union Country Quiz | 0 | - | 4.85 | 60,461 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 162,918 |
| Albert Einstein Quiz | 0 | - | 4.46 | 16,539 |
| The Trojan War | 0 | - | 4.86 | 27,729 |
| The Events of 9/11 | 0 | - | 4.18 | 25,823 |
| Countries with the Most Malaria Deaths | 0 | - | 4.38 | 30,461 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.53 | 52,760 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.18 | 35,858 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.94 | 18,566 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 71,557 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.83 | 57,126 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.90 | 63,011 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.90 | 50,373 |
| First Countries to Reach 5 Million People | 0 | - | 4.89 | 102,951 |
| Medical Vocabulary | 0 | - | 4.50 | 49,358 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 123,330 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.54 | 12,801 |
| Former Flags | 0 | - | 4.97 | 74,716 |
| Former Countries by Territory Map | 0 | - | 4.96 | 78,777 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 20,584 |
| Roman Provinces on a Map | 0 | - | 4.63 | 28,089 |
| Countries of the World in 1900 | 0 | - | 4.85 | 57,188 |
| Empires by Maps | 0 | - | 4.99 | 81,843 |
| Cities Bombed During WWII | 0 | - | 4.06 | 25,193 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.40 | 13,011 |
| Ultimate 20th Century History Quiz | 0 | - | 4.85 | 42,668 |
| WWII Figures by Picture | 0 | - | 4.79 | 33,734 |
| Two Letter Roman Numerals | 0 | - | 4.96 | 32,711 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 155,594 |
| World War II Multiple Choice | 0 | - | 4.34 | 88,755 |
| Territory Changes in World War I | 0 | - | 4.82 | 36,455 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 32,254 |
| Countries of the German Empire | 0 | - | 4.44 | 29,291 |
| Countries in the Byzantine Empire | 0 | - | 4.92 | 61,873 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 78,531 |
| Name a Valid U.S. President #1 | 0 | - | 4.94 | 135,308 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.55 | 31,819 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 100,083 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 113,797 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 85,091 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 79,827 |
| Battle to Country | 0 | - | 4.86 | 32,172 |
| Countries of the Italian Empire | 0 | - | 4.20 | 22,073 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 90,035 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 71,005 |
| Countries by Former Name | 0 | - | 4.98 | 86,882 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 62,839 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.53 | 39,102 |
| Name a Valid Year in History | 0 | - | 4.95 | 43,745 |
| Name a Valid Answer - World War II | 0 | - | 4.47 | 42,876 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 35,845 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.88 | 40,860 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 23,327 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 63,680 |
| Countries by Founding Story | 0 | - | 4.90 | 50,748 |
| Countries that Desalinate the Most Water | 0 | - | 4.82 | 21,334 |
| Body Parts in History and Culture | 0 | - | 4.34 | 31,198 |
| WWI... or WWII? | 0 | - | 4.82 | 106,986 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 54,326 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.96 | 108,961 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 70,505 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 55,957 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 8,072 |
| Countries of the World in 1444 | 0 | - | 4.98 | 44,750 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.96 | 51,321 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.94 | 21,480 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 57,161 |
| "Second Best" History Edition | 0 | - | 4.91 | 39,904 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 54,757 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.92 | 40,273 |
| Solar System Trivia | 0 | - | 4.85 | 33,303 |
| Countries by Percent WWII Deaths | 0 | - | 4.23 | 23,172 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.27 | 21,582 |
| Countries of Europe before World War II with a Map | 0 | - | 4.92 | 30,455 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 95,287 |
| WWII for Dummies | 0 | - | 4.52 | 81,410 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.54 | 13,536 |
| History: What Came First? #1 | 0 | - | 4.86 | 81,387 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 59,481 |
| Play-Doh Presidents | 0 | - | 5.00 | 66,571 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.98 | 41,009 |
