| Name the English Monarchs | 0 | - | 4.92 | 498,545 |
| Rappers Real Names | 0 | - | 4.08 | 68,991 |
| Musicians Who Died Young | 0 | - | 4.39 | 107,557 |
| "Second Best" History Edition | 0 | - | 4.93 | 62,015 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,742 |
| Empires by Maps | 0 | - | 4.98 | 118,736 |
| Words for Leaders | 0 | - | 4.77 | 255,391 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,505 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,305 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,132 |
| Music by Year, 1990–2009 | 0 | - | 4.20 | 109,447 |
| Music by Year, 1970–1989 | 0 | - | 4.31 | 40,968 |
| Mulan - "I'll Make A Man Out Of You" Lyrics | 0 | - | 4.61 | 39,046 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,501 |
| Metals of Antiquity | 0 | - | 4.94 | 92,980 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,237 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,285 |
| World Leaders by Picture | 0 | - | 4.36 | 263,652 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,127 |
| Dictators by Picture | 0 | - | 4.18 | 48,911 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,731 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,018 |
| A Quiz About Elvis Presley | 0 | - | 4.33 | 21,168 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,706 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,734 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,907 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.80 | 49,433 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,634 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,347 |
| Countries by National Anthem | 0 | - | 4.93 | 71,050 |
| "A Whole New World" Lyrics | 0 | - | 4.31 | 67,373 |
| Rappers by Picture | 0 | - | 4.22 | 132,966 |
| Influential Women in History | 0 | - | 4.42 | 35,163 |
| Cradles of Civilization | 0 | - | 4.46 | 39,222 |
| Former Flags | 0 | - | 4.97 | 106,839 |
| Materials From History #1 | 0 | - | 4.56 | 51,087 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,226 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,024 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,670 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,883 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,392 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,769 |
| WWII First Names | 0 | - | 4.44 | 41,594 |
| Cold War Decoder | 0 | - | 4.83 | 51,983 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,500 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,315 |
| Famous Explorers | 0 | - | 4.58 | 35,996 |
| Famous Empires by Description | 0 | - | 4.73 | 117,999 |
| Answers by Time Period | 0 | - | 4.63 | 55,314 |
| Political Quotes | 0 | - | 4.17 | 19,816 |
| Military History Vocabulary | 0 | - | 4.91 | 66,707 |
| Battle to Country | 0 | - | 4.91 | 52,600 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,748 |
| The Life of King David | 0 | - | 4.37 | 14,067 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,528 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,302 |
| European History for Dummies | 0 | - | 4.83 | 89,388 |
| English Royal Consorts | 0 | - | 4.37 | 37,210 |
| British History A-Z #1 | 0 | - | 4.45 | 46,145 |
| Kings of France Quiz | 0 | - | 4.20 | 32,578 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,373 |
| Monarchies of Europe | 0 | - | 4.90 | 97,417 |
| Monarchies of Asia | 0 | - | 4.97 | 70,656 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,764 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,626 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,718 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,033 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 66,165 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,167 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,311 |
| Orthodox Countries | 0 | - | 4.91 | 130,498 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,156 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,513 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 333,503 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,475 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,148 |
| History Analogies #1 | 0 | - | 4.53 | 89,801 |
| History Analogies #2 | 0 | - | 4.49 | 77,025 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,191 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,980 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,947 |
| History Analogies #3 | 0 | - | 4.61 | 80,459 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,190 |
| Spanish History A-Z | 0 | - | 4.37 | 19,170 |
| Italian History A-Z | 0 | - | 4.21 | 17,560 |
| Years in History by Picture | 0 | - | 4.44 | 35,155 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,231 |
| Materials From History #2 | 0 | - | 4.59 | 31,254 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,591 |
| Random History by Country | 0 | - | 4.53 | 34,686 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,599 |
| Animals in World History | 0 | - | 4.74 | 44,251 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,511 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,390 |
| History True or False #3 | 0 | - | 4.43 | 55,971 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,290 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,870 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,111 |
| The Trojan War | 0 | - | 4.83 | 39,470 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,720 |
| Mythology A-Z | 0 | - | 4.31 | 37,027 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,555 |
| WWII Geography | 0 | - | 4.81 | 119,436 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,144 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,612 |
| Countries in World War I | 0 | - | 4.88 | 226,742 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,270 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,996 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,606 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,330 |
| Events in History #2 | 0 | - | 4.49 | 71,462 |
| Events in History #4 | 0 | - | 4.44 | 44,134 |
| Events in Ancient History | 0 | - | 4.50 | 35,750 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,845 |
| Assassinations in History | 0 | - | 4.21 | 66,001 |
| Famous Seconds | 0 | - | 4.22 | 46,409 |
| Ages and Eras | 0 | - | 4.38 | 67,501 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,417 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,656 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,065 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,847 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,834 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,968 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,612 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,968 |
| Female Historical Figures | 0 | - | 4.27 | 33,124 |
| Historical Blunders | 0 | - | 4.33 | 91,737 |
| Territorial Accessions | 0 | - | 4.38 | 34,666 |
| People Known as "The Great" | 0 | - | 4.46 | 24,552 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,402 |
| This Day in History - July | 0 | - | 4.49 | 36,378 |
| This Day in History - August | 0 | - | 4.42 | 43,264 |
| This Day in History - September | 0 | - | 4.55 | 57,286 |
| This Day in History - October | 0 | - | 4.49 | 37,558 |
| This Day in History - January | 0 | - | 4.53 | 46,589 |
| This Day in History - March | 0 | - | 4.45 | 43,552 |
| Ancient Civilizations | 0 | - | 4.63 | 37,784 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,117 |
| Roman Emperors | 0 | - | 4.95 | 118,625 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,692 |
| Name that Greek Letter | 0 | - | 4.94 | 321,882 |
| The 19th Century | 0 | - | 4.53 | 67,899 |
| The 18th Century | 0 | - | 4.52 | 53,131 |
| The 16th Century | 0 | - | 4.77 | 58,747 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,552 |
| The 21st Century | 0 | - | 4.48 | 105,365 |
| The Places They Went #1 | 0 | - | 4.74 | 33,454 |
| Famous Inventors | 0 | - | 4.43 | 43,467 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,556 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,433 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,825 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,560 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,279 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,206 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,632 |
| British Royal Titles | 0 | - | 4.18 | 19,881 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,436 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,702 |
| Dark Ages History | 0 | - | 4.42 | 32,683 |
| German History A-Z | 0 | - | 4.49 | 24,427 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,011,293 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,746 |
| #1 Hits of the 1980s | 0 | - | 4.86 | 147,637 |
| Phineas and Ferb Theme Song Lyrics | 0 | - | 4.38 | 91,829 |
| Star Wars Quotes | 0 | - | 4.84 | 173,600 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,336 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,201 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,533 |
| Top 100 Greatest NBA Players | 0 | - | 4.42 | 686,200 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,679 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,404,535 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,177 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,156 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,227 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,253 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,434 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,438 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,326 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,162 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,161 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 56,040 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,564 |
| Hindu Countries | 0 | - | 4.86 | 49,643 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 522,523 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,107 |
| Click a Valid World Capital A-Z | 0 | - | 4.83 | 89,334 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 37,788 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,101 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,239 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,923 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,673 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,810 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,622 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,381 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,087 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,833 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,194 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,670 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,737 |
| History Multiple Choice #6 | 0 | - | 4.46 | 17,950 |
