| Quiz | Points | Best | Rating | Takes |
|---|
| U.S. Presidents Quiz | 0 | - | 5.00 | 2,847,913 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,755,076 |
| Planets of the Solar System Quiz | 0 | - | 4.88 | 957,527 |
| U.S. Presidents by Picture | 0 | - | 4.76 | 363,011 |
| Letters of the Greek Alphabet | 0 | - | 4.93 | 528,992 |
| Olympian Gods Quiz | 0 | - | 4.95 | 421,882 |
| English Monarchs Quiz | 0 | - | 4.83 | 403,545 |
| Words for Leaders | 0 | - | 4.70 | 196,998 |
| Communist Countries in History | 0 | - | 4.43 | 405,715 |
| Famous Dictators Quiz #1 | 0 | - | 4.62 | 173,802 |
| Medical Specialties | 0 | - | 4.28 | 80,314 |
| Body Part Words Quiz | 0 | - | 4.38 | 133,267 |
| Mythical Creatures Quiz #1 | 0 | - | 4.88 | 618,371 |
| Figures from Greek Mythology | 0 | - | 4.85 | 157,543 |
| Roman Numeral Decoding Quiz | 0 | - | 4.82 | 360,153 |
| Name that Historical Figure #1 | 0 | - | 4.60 | 275,415 |
| Hollywood Screen Legends Quiz | 0 | - | 3.96 | 32,948 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 212,055 |
| Prime Ministers of the UK | 0 | - | 4.92 | 349,812 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 146,058 |
| Former Capitals Quiz | 0 | - | 4.75 | 56,179 |
| International Scientific Units | 0 | - | 4.94 | 126,104 |
| Elements by Symbol Quiz | 0 | - | 4.89 | 161,830 |
| Ye Olde Professions | 0 | - | 4.60 | 126,364 |
| Name that Greek Letter | 0 | - | 4.90 | 269,328 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 136,540 |
| Countries in World War II | 0 | - | 4.44 | 721,984 |
| Deadliest U.S. Wars | 0 | - | 4.79 | 148,217 |
| Countries in World War I | 0 | - | 4.90 | 193,592 |
| Biggest Nations and Empires Ever | 0 | - | 4.49 | 125,340 |
| Countries Bordering China Since 1914 | 0 | - | 4.90 | 81,789 |
| Countries of the Soviet Union | 0 | - | 4.98 | 156,746 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 95,793 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.48 | 412,500 |
| Medical Conditions Quiz | 0 | - | 4.74 | 110,179 |
| Independence from Whom | 0 | - | 4.99 | 172,156 |
| Famous Empires in History | 0 | - | 4.82 | 96,079 |
| Biggest English Cities by Century | 0 | - | 4.92 | 91,518 |
| WWII Trivia #1 | 0 | - | 4.32 | 136,684 |
| Notable People of WWII | 0 | - | 4.45 | 76,024 |
| Who Controlled These Colonies? | 0 | - | 4.82 | 104,816 |
| Medical Acronyms | 0 | - | 4.35 | 83,417 |
| Speed Symbol by Element | 0 | - | 4.85 | 83,476 |
| WWII Trivia #2 | 0 | - | 4.43 | 79,363 |
| World War I Quiz | 0 | - | 4.70 | 86,446 |
| First Names of U.S. Presidents | 0 | - | 4.83 | 313,864 |
| Most Populous Countries in 1900 | 0 | - | 4.88 | 153,007 |
| Warsaw Pact Countries | 0 | - | 4.88 | 67,197 |
| The Bill Clinton Presidency | 0 | - | 4.11 | 28,904 |
| The George H. W. Bush Presidency | 0 | - | 4.34 | 19,606 |
| The Ronald Reagan Presidency | 0 | - | 4.23 | 22,403 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 44,688 |
| The Richard Nixon Presidency | 0 | - | 3.98 | 19,839 |
| The Jimmy Carter Presidency | 0 | - | 4.29 | 17,020 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 21,180 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 61,636 |
| Cold War Trivia #1 | 0 | - | 4.32 | 51,422 |
| Cold War Trivia #2 | 0 | - | 4.25 | 23,970 |
| Countries with the Most Forest | 0 | - | 4.87 | 129,603 |
| Elemental Words | 0 | - | 4.96 | 44,249 |
| The Diseases They Had | 0 | - | 4.13 | 12,461 |
| Current Events by Year, 1990–2009 | 0 | - | 4.75 | 138,167 |
| Ancient Greek Words | 0 | - | 4.86 | 86,453 |
| Space Exploration Trivia | 0 | - | 4.31 | 32,073 |
| Most Populous Countries in 1950 | 0 | - | 4.45 | 66,448 |
| Important Cities in WWII | 0 | - | 4.41 | 78,415 |
| American Generations | 0 | - | 3.95 | 19,314 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 92,182 |
| Confederate States of the U.S. Civil War | 0 | - | 4.90 | 108,685 |
| The 20th Century | 0 | - | 4.39 | 75,421 |
| WWI A-Z | 0 | - | 4.49 | 32,736 |
| Roman Emperors | 0 | - | 4.95 | 84,646 |
| History by Letter - A | 0 | - | 4.51 | 125,539 |
| History by Letter - B | 0 | - | 4.49 | 142,221 |
| History by Letter - C | 0 | - | 4.70 | 138,292 |
| History by Letter - E | 0 | - | 4.44 | 116,408 |
| WWII A-Z #1 | 0 | - | 4.76 | 85,993 |
| WWII A-Z #2 | 0 | - | 4.46 | 46,258 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 191,805 |
| WWII First Names | 0 | - | 4.44 | 35,796 |
| WWII Movies | 0 | - | 4.18 | 24,670 |
| History by Letter - J | 0 | - | 4.44 | 128,037 |
| Dumb it Down Doc | 0 | - | 4.06 | 59,319 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 80,259 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 64,190 |
| World Leaders of the Cold War | 0 | - | 4.24 | 20,519 |
| World Leaders of the World Wars | 0 | - | 4.34 | 31,932 |
| Countries Settled by Vikings | 0 | - | 4.93 | 105,226 |
| Name the Virus | 0 | - | 4.69 | 59,241 |
| WWII Geography | 0 | - | 4.76 | 92,905 |
| Soviet Leaders 1917–1991 | 0 | - | 4.32 | 69,509 |
| Countries that Bordered the USSR | 0 | - | 4.92 | 134,250 |
| 1960s Decade Quiz #1 | 0 | - | 4.27 | 37,829 |
| 1960s Decade Quiz #2 | 0 | - | 4.34 | 31,392 |
| 1950s Decade Quiz | 0 | - | 4.23 | 37,377 |
| Biggest European Cities by Century | 0 | - | 4.95 | 111,125 |
| Countries Invaded by the USSR | 0 | - | 4.24 | 63,808 |
| Countries with the Most HIV | 0 | - | 4.47 | 41,021 |
| Former Countries | 0 | - | 4.62 | 117,814 |
| WWII Decoder | 0 | - | 4.42 | 45,402 |
| Cold War Decoder | 0 | - | 4.62 | 43,965 |
| Top 10 Solar Power Countries | 0 | - | 4.83 | 53,754 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.93 | 63,985 |
| Military History Vocabulary | 0 | - | 4.89 | 55,060 |
| Biggest Axis-Controlled Cities | 0 | - | 4.25 | 32,426 |
| Countries with Glaciers | 0 | - | 4.97 | 75,400 |
| Neutral European Countries of WWII | 0 | - | 4.93 | 118,604 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 28,037 |
| Normandy D-Day Beaches | 0 | - | 4.76 | 34,512 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 70,164 |
| Countries of Europe After World War II | 0 | - | 4.97 | 154,460 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 122,949 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 42,016 |
| Most Recently-Settled Countries | 0 | - | 4.88 | 46,486 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.88 | 45,768 |
| Biggest Roman Empire Countries | 0 | - | 4.84 | 77,030 |
| Biggest Mongol Empire Countries | 0 | - | 4.90 | 63,770 |
| Metals of Antiquity | 0 | - | 4.95 | 66,476 |
| The Life of Winston Churchill | 0 | - | 4.08 | 10,906 |
| Soviet Union Country Quiz | 0 | - | 4.85 | 60,529 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 163,056 |
| Albert Einstein Quiz | 0 | - | 4.46 | 16,546 |
| The Trojan War | 0 | - | 4.86 | 27,756 |
| The Events of 9/11 | 0 | - | 4.18 | 25,834 |
| Countries with the Most Malaria Deaths | 0 | - | 4.38 | 30,474 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.53 | 52,797 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.18 | 35,890 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.94 | 18,567 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 71,689 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.75 | 62,199 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.90 | 63,148 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.90 | 50,510 |
| First Countries to Reach 5 Million People | 0 | - | 4.89 | 103,087 |
| Medical Vocabulary | 0 | - | 4.50 | 49,409 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 123,434 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.54 | 12,814 |
| Former Flags | 0 | - | 4.97 | 74,776 |
| Former Countries by Territory Map | 0 | - | 4.96 | 78,823 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 20,597 |
| Roman Provinces on a Map | 0 | - | 4.63 | 28,120 |
| Countries of the World in 1900 | 0 | - | 4.85 | 57,262 |
| Empires by Maps | 0 | - | 4.99 | 81,953 |
| Cities Bombed During WWII | 0 | - | 4.06 | 25,205 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.40 | 13,021 |
| Ultimate 20th Century History Quiz | 0 | - | 4.85 | 42,707 |
| WWII Figures by Picture | 0 | - | 4.79 | 33,770 |
| Two Letter Roman Numerals | 0 | - | 4.96 | 32,795 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 155,745 |
| World War II Multiple Choice | 0 | - | 4.34 | 88,787 |
| Territory Changes in World War I | 0 | - | 4.82 | 36,492 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 32,283 |
| Countries of the German Empire | 0 | - | 4.44 | 29,328 |
| Countries in the Byzantine Empire | 0 | - | 4.92 | 61,927 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 78,608 |
| Name a Valid U.S. President #1 | 0 | - | 4.94 | 135,485 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.55 | 31,845 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 100,203 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 113,913 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 85,161 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 79,905 |
| Battle to Country | 0 | - | 4.86 | 32,196 |
| Countries of the Italian Empire | 0 | - | 4.20 | 22,113 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 90,118 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 71,225 |
| Countries by Former Name | 0 | - | 4.98 | 86,941 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 62,905 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.52 | 39,136 |
| Name a Valid Year in History | 0 | - | 4.95 | 43,868 |
| Name a Valid Answer - World War II | 0 | - | 4.47 | 42,919 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 35,888 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.88 | 40,923 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 23,354 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 63,756 |
| Countries by Founding Story | 0 | - | 4.90 | 50,790 |
| Countries that Desalinate the Most Water | 0 | - | 4.82 | 21,362 |
| Body Parts in History and Culture | 0 | - | 4.34 | 31,214 |
| WWI... or WWII? | 0 | - | 4.82 | 107,121 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 54,397 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 109,132 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 70,575 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 56,001 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 8,089 |
| Countries of the World in 1444 | 0 | - | 4.98 | 44,777 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.96 | 51,379 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.93 | 21,525 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 57,234 |
| "Second Best" History Edition | 0 | - | 4.91 | 40,040 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 54,835 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.92 | 40,348 |
| Solar System Trivia | 0 | - | 4.85 | 33,355 |
| Countries by Percent WWII Deaths | 0 | - | 4.23 | 23,194 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.27 | 21,590 |
| Countries of Europe before World War II with a Map | 0 | - | 4.92 | 30,538 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 95,438 |
| WWII for Dummies | 0 | - | 4.52 | 81,561 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.54 | 13,548 |
| History: What Came First? #1 | 0 | - | 4.86 | 81,456 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 59,558 |
| Play-Doh Presidents | 0 | - | 5.00 | 66,640 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.98 | 41,055 |
