| Animals in World History | 0 | - | 4.74 | 44,185 |
| Name the English Monarchs | 0 | - | 4.92 | 497,325 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,610 |
| The Trojan War | 0 | - | 4.83 | 39,393 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,330 |
| Disney Animals | 0 | - | 4.27 | 238,464 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,034 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,302 |
| Empires by Maps | 0 | - | 4.98 | 118,142 |
| Words for Leaders | 0 | - | 4.77 | 254,862 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,142 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,033 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,377 |
| Metals of Antiquity | 0 | - | 4.94 | 92,811 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,206 |
| Animals in the News | 0 | - | 4.37 | 26,707 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,081 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,057 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 67,335 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 703,945 |
| Extinct Animals | 0 | - | 4.18 | 27,394 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,604 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,392 |
| Influential Women in History | 0 | - | 4.42 | 34,892 |
| Cradles of Civilization | 0 | - | 4.46 | 38,947 |
| Materials From History #1 | 0 | - | 4.56 | 50,515 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,978 |
| World Leaders by Picture | 0 | - | 4.36 | 263,149 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,960 |
| Dictators by Picture | 0 | - | 4.17 | 48,831 |
| Mythology A-Z | 0 | - | 4.31 | 36,956 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,788 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,061 |
| Famous Explorers | 0 | - | 4.58 | 35,909 |
| Famous Empires by Description | 0 | - | 4.70 | 117,460 |
| Answers by Time Period | 0 | - | 4.63 | 55,221 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,905 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,646 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,798 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,251 |
| Movies with Animals in the Title #1 | 0 | - | 4.21 | 182,985 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 107,965 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,532 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,264 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,359 |
| Marketing Slogans for Animals | 0 | - | 4.48 | 29,105 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,427 |
| Books by Country Quiz | 0 | - | 4.30 | 32,166 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,827 |
| Former Flags | 0 | - | 4.97 | 106,521 |
| Years in History by Picture | 0 | - | 4.44 | 35,045 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,143 |
| Materials From History #2 | 0 | - | 4.59 | 30,892 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,481 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,633 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 46,844 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,236 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,736 |
| WWII First Names | 0 | - | 4.45 | 41,530 |
| Cold War Decoder | 0 | - | 4.83 | 51,873 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,297 |
| Events in History #2 | 0 | - | 4.49 | 71,375 |
| Events in History #4 | 0 | - | 4.44 | 44,067 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,262 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,784 |
| Assassinations in History | 0 | - | 4.20 | 65,916 |
| Famous Seconds | 0 | - | 4.22 | 46,363 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,416 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,375 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,583 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,003 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,799 |
| Female Historical Figures | 0 | - | 4.31 | 33,069 |
| Historical Blunders | 0 | - | 4.33 | 91,634 |
| Territorial Accessions | 0 | - | 4.38 | 34,610 |
| People Known as "The Great" | 0 | - | 4.46 | 24,489 |
| Political Quotes | 0 | - | 4.17 | 19,798 |
| This Day in History - July | 0 | - | 4.49 | 36,355 |
| This Day in History - August | 0 | - | 4.41 | 43,232 |
| This Day in History - September | 0 | - | 4.55 | 57,233 |
| This Day in History - October | 0 | - | 4.49 | 37,542 |
| This Day in History - January | 0 | - | 4.53 | 46,550 |
| This Day in History - March | 0 | - | 4.45 | 43,524 |
| Ancient Civilizations | 0 | - | 4.63 | 37,722 |
| Military History Vocabulary | 0 | - | 4.91 | 66,573 |
| Battle to Country | 0 | - | 4.91 | 52,429 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,637 |
| The Places They Went #1 | 0 | - | 4.74 | 33,432 |
| The Life of King David | 0 | - | 4.37 | 14,054 |
| Famous Inventors | 0 | - | 4.43 | 43,439 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,404 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,246 |
| European History for Dummies | 0 | - | 4.82 | 89,219 |
| English Royal Consorts | 0 | - | 4.37 | 37,139 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,580 |
| British History A-Z #1 | 0 | - | 4.45 | 45,734 |
| Animals in British History | 0 | - | 4.44 | 25,860 |
| Kings of France Quiz | 0 | - | 4.20 | 32,535 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,009,957 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,182 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,333 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,948 |
| Brand-Name Animals | 0 | - | 4.16 | 74,238 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,144 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,757 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,406 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,458 |
| Middle Earth Geography | 0 | - | 4.56 | 39,505 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,766 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,509 |
| Game of Thrones Houses | 0 | - | 4.52 | 86,394 |
| Game of Thrones Characters by Death | 0 | - | 4.41 | 54,214 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,207 |
| Monarchies of Europe | 0 | - | 4.90 | 97,199 |
| Monarchies of Asia | 0 | - | 4.97 | 70,532 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,650 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,237 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,463 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,793 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 65,948 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,871 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,104 |
| Orthodox Countries | 0 | - | 4.91 | 130,247 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,035 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,424 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 331,942 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,376 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,674 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,993 |
| History Analogies #1 | 0 | - | 4.53 | 89,744 |
| History Analogies #2 | 0 | - | 4.49 | 76,963 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,060 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,926 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,904 |
| History Analogies #3 | 0 | - | 4.61 | 80,399 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,093 |
| Spanish History A-Z | 0 | - | 4.36 | 18,995 |
| Italian History A-Z | 0 | - | 4.21 | 17,338 |
| Which Came First? | 0 | - | 4.37 | 74,357 |
| Random History by Country | 0 | - | 4.53 | 34,634 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,495 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,402 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,325 |
| History True or False #3 | 0 | - | 4.43 | 55,872 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,278 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,826 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,701 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,350 |
| WWII Geography | 0 | - | 4.81 | 119,252 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,068 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,400 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,172 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,897 |
| Events in History #3 | 0 | - | 4.40 | 71,405 |
| Events in History #1 | 0 | - | 4.34 | 157,184 |
| Events in Ancient History | 0 | - | 4.50 | 35,667 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,516 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,834 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,434 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,122 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,136 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,478 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,863 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,114 |
| This Day in History - April | 0 | - | 4.39 | 44,376 |
| This Day in History - May | 0 | - | 4.32 | 48,235 |
| This Day in History - June | 0 | - | 4.35 | 33,423 |
| This Day in History - November | 0 | - | 4.24 | 33,521 |
| This Day in History - December | 0 | - | 4.31 | 40,440 |
| This Day in History - February | 0 | - | 4.38 | 39,688 |
| The 19th Century | 0 | - | 4.53 | 67,847 |
| The 18th Century | 0 | - | 4.52 | 53,098 |
| The 16th Century | 0 | - | 4.77 | 58,717 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,516 |
| The 21st Century | 0 | - | 4.48 | 105,209 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,468 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,381 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,770 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,509 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,244 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,165 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,653 |
| Dark Ages History | 0 | - | 4.42 | 32,667 |
| German History A-Z | 0 | - | 4.49 | 24,166 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,747 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,216 |
| Lord of the Rings - Races | 0 | - | 4.24 | 58,375 |
| The Ultimate LOTR Character Quiz - The Books | 0 | - | 4.64 | 20,458 |
| Books of "A Song of Ice and Fire" | 0 | - | 4.50 | 13,890 |
| Game of Thrones - The Book | 0 | - | 4.40 | 91,616 |
| Game of Thrones - Were You Even Paying Attention? | 0 | - | 4.10 | 32,240 |
| Star Wars Quotes | 0 | - | 4.84 | 173,243 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,160 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,018 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,445 |
| Top 100 Greatest NBA Players | 0 | - | 4.42 | 684,391 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,260 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,398,688 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,041 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,039 |
