| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,180 |
| Ye Olde Professions | 0 | - | 4.67 | 155,970 |
| Mythical Creatures #2 | 0 | - | 4.04 | 111,248 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,624 |
| Military History Vocabulary | 0 | - | 4.91 | 66,762 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,370 |
| Were They Alive During This? | 0 | - | 4.94 | 47,299 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,184 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 44,825 |
| NBA Basketball by Year, 2000–Present | 0 | - | 4.33 | 60,392 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,849 |
| Words for Government | 0 | - | 4.48 | 76,303 |
| Animal Adjectives | 0 | - | 4.77 | 59,881 |
| Medical Vocabulary | 0 | - | 4.54 | 58,791 |
| Vocabulary Mega-Challenge #1 | 0 | - | 4.64 | 158,461 |
| Vocabulary Mega-Challenge #2 | 0 | - | 4.48 | 63,332 |
| Sports Terms #2 | 0 | - | 4.06 | 51,162 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,506 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,739 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.75 | 38,144 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,918 |
| Empires by Maps | 0 | - | 4.98 | 118,989 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,370 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,174 |
| 2010s Decade Quiz | 0 | - | 4.53 | 101,349 |
| Metals of Antiquity | 0 | - | 4.94 | 93,054 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,329 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,416 |
| Play-Doh People from History | 0 | - | 4.99 | 94,107 |
| History - Did They Have It? | 0 | - | 4.84 | 61,256 |
| Quiz on the Year 2001 | 0 | - | 4.48 | 24,194 |
| 20th Century A-Z | 0 | - | 4.50 | 53,245 |
| 19th Century A-Z | 0 | - | 4.77 | 46,796 |
| 18th Century A-Z | 0 | - | 4.54 | 42,688 |
| Things Named for Inventors | 0 | - | 4.40 | 72,261 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,788 |
| Elemental Words | 0 | - | 4.96 | 52,065 |
| Name a Valid Word #1 | 0 | - | 4.88 | 119,210 |
| Sports Terms #1 | 0 | - | 3.87 | 168,362 |
| Medical Specialties | 0 | - | 4.32 | 91,115 |
| Three Letter Vocabulary Words | 0 | - | 4.15 | 63,198 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,359 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,469 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,700 |
| Influential Women in History | 0 | - | 4.42 | 35,229 |
| Cradles of Civilization | 0 | - | 4.46 | 39,282 |
| Materials From History #1 | 0 | - | 4.56 | 51,270 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,310 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,411 |
| Famous Explorers | 0 | - | 4.58 | 36,019 |
| Famous Empires by Description | 0 | - | 4.73 | 118,076 |
| Answers by Time Period | 0 | - | 4.63 | 55,361 |
| 1970s Decade Quiz | 0 | - | 4.20 | 52,415 |
| 2000s Decade Quiz | 0 | - | 4.23 | 120,349 |
| 1980s Decade Quiz | 0 | - | 4.38 | 76,483 |
| 1990s Decade Quiz | 0 | - | 4.01 | 54,685 |
| 1850s Decade Quiz | 0 | - | 4.42 | 35,014 |
| 1790s Decade Quiz | 0 | - | 4.55 | 33,463 |
| 1800s Decade Quiz | 0 | - | 4.47 | 31,743 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,228 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,800 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,596 |
| Trace the Route of Ibn Battuta on a Map | 0 | - | 4.99 | 22,447 |
| Quiz on the Year 1997 | 0 | - | 4.39 | 20,924 |
| Quiz on the Year 1998 | 0 | - | 4.33 | 17,225 |
| Quiz on the Year 2000 | 0 | - | 4.08 | 21,117 |
| 16th Century A-Z | 0 | - | 4.58 | 24,427 |
| 15th Century A-Z | 0 | - | 4.49 | 23,424 |
| 14th Century A-Z | 0 | - | 4.41 | 23,832 |
| 17th Century A-Z | 0 | - | 4.78 | 34,210 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,791 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,007 |
| Foods by Alternate Definition | 0 | - | 3.88 | 53,444 |
| Movie Title Vocabulary Quiz #1 | 0 | - | 4.23 | 59,601 |
| U.S. TV Show Vocabulary Quiz | 0 | - | 4.15 | 23,409 |
| Song Title Vocabulary | 0 | - | 4.35 | 62,268 |
| Religion Vocabulary | 0 | - | 4.14 | 30,130 |
| Rock Band Vocabulary | 0 | - | 3.98 | 46,034 |
| First Name Vocabulary #1 | 0 | - | 3.84 | 48,335 |
| First Name Vocabulary #2 | 0 | - | 3.97 | 36,537 |
| Animal Group Names | 0 | - | 4.06 | 23,129 |
| Six Letter Vocabulary Chain | 0 | - | 4.19 | 12,913 |
| Vocabulary Mega-Challenge: French Origin | 0 | - | 4.16 | 32,278 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,642 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,313 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,126 |
| Former Flags | 0 | - | 4.97 | 106,975 |
| Years in History by Picture | 0 | - | 4.44 | 35,223 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,289 |
| Materials From History #2 | 0 | - | 4.59 | 31,356 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,670 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,150 |
| People Who Have Been Considered Gods | 0 | - | 4.48 | 24,275 |
| Cold War Decoder | 0 | - | 4.83 | 52,054 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,341 |
| Events in History #2 | 0 | - | 4.49 | 71,506 |
| Events in History #4 | 0 | - | 4.44 | 44,163 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,873 |
| Assassinations in History | 0 | - | 4.21 | 66,051 |
| Famous Seconds | 0 | - | 4.22 | 46,434 |
| Ages and Eras | 0 | - | 4.38 | 67,545 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,428 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,678 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,086 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,874 |
| Female Historical Figures | 0 | - | 4.27 | 33,148 |
| Historical Blunders | 0 | - | 4.33 | 91,777 |
| Territorial Accessions | 0 | - | 4.39 | 34,684 |
| People Known as "The Great" | 0 | - | 4.46 | 24,571 |
| This Day in History - July | 0 | - | 4.49 | 36,392 |
| This Day in History - August | 0 | - | 4.42 | 43,285 |
| This Day in History - September | 0 | - | 4.55 | 57,316 |
| This Day in History - October | 0 | - | 4.49 | 37,571 |
| This Day in History - January | 0 | - | 4.50 | 46,612 |
| This Day in History - March | 0 | - | 4.45 | 43,569 |
| Ancient Civilizations | 0 | - | 4.63 | 37,807 |
| MLB Baseball by Year, 1960–1989 | 0 | - | 4.09 | 18,659 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.34 | 25,424 |
| MLB Baseball by Year, 1990–present | 0 | - | 4.02 | 14,951 |
| 1900s Decade Quiz | 0 | - | 4.18 | 44,048 |
| 1860s Decade Quiz | 0 | - | 4.31 | 40,216 |
| 1880s Decade Quiz | 0 | - | 4.24 | 39,245 |
| 1890s Decade Quiz | 0 | - | 4.24 | 39,645 |
| 1870s Decade Quiz | 0 | - | 4.28 | 36,477 |
| 1840s Decade Quiz | 0 | - | 4.30 | 37,490 |
| 1810s Decade Quiz | 0 | - | 4.58 | 30,821 |
| 1820s Decade Quiz | 0 | - | 4.54 | 29,705 |
| 1830s Decade Quiz | 0 | - | 4.42 | 29,070 |
| The Places They Went #1 | 0 | - | 4.74 | 33,461 |
| Famous Inventors | 0 | - | 4.43 | 43,479 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,600 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,338 |
| Countries Visited by Christopher Columbus | 0 | - | 4.85 | 21,798 |
| European History for Dummies | 0 | - | 4.83 | 89,469 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,011,743 |
| Jewish Words | 0 | - | 4.15 | 31,132 |
| Sports Terms Quiz #3 | 0 | - | 3.46 | 12,957 |
| Horse Vocabulary | 0 | - | 4.22 | 22,685 |
| Japanese Loanwords | 0 | - | 4.47 | 84,432 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,729 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,181 |
| The Places They Went #3 | 0 | - | 4.63 | 13,672 |
| History Analogies #1 | 0 | - | 4.53 | 89,826 |
| History Analogies #2 | 0 | - | 4.49 | 77,054 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,266 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,017 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,969 |
| History Analogies #3 | 0 | - | 4.61 | 80,500 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,239 |
| Which Came First? | 0 | - | 4.37 | 74,489 |
| Random History by Country | 0 | - | 4.53 | 34,709 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,653 |
| Animals in World History | 0 | - | 4.74 | 44,303 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,566 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,429 |
| History True or False #3 | 0 | - | 4.43 | 56,049 |
| History: What Came First? #2 | 0 | - | 4.80 | 78,952 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,841 |
| Cold War Trivia #1 | 0 | - | 4.41 | 57,052 |
| History of Nuclear Weapons | 0 | - | 4.56 | 42,101 |
| Events in History #3 | 0 | - | 4.40 | 71,513 |
| Events in History #1 | 0 | - | 4.34 | 157,404 |
| Events in Ancient History | 0 | - | 4.50 | 35,784 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,583 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 94,993 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,577 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,705 |
| Countries That Were Invaded | 0 | - | 4.54 | 97,050 |
| This Day in History - April | 0 | - | 4.40 | 44,409 |
| This Day in History - May | 0 | - | 4.33 | 48,280 |
| This Day in History - June | 0 | - | 4.36 | 33,450 |
| This Day in History - November | 0 | - | 4.24 | 33,553 |
| This Day in History - December | 0 | - | 4.32 | 40,473 |
| This Day in History - February | 0 | - | 4.38 | 39,722 |
| Quiz on the Year 1908 | 0 | - | 4.25 | 12,854 |
| The 19th Century | 0 | - | 4.53 | 67,938 |
| The 18th Century | 0 | - | 4.52 | 53,158 |
| The 16th Century | 0 | - | 4.77 | 58,772 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,573 |
| The 21st Century | 0 | - | 4.48 | 105,468 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,622 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,461 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,861 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,585 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,317 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,236 |
| Trace the Route of Marco Polo on a Map | 0 | - | 5.00 | 42,043 |
| Dark Ages History | 0 | - | 4.42 | 32,694 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,881 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,120 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,528 |
| Name a Valid Word #2 | 0 | - | 4.49 | 82,032 |
| Movie Title Vocabulary Quiz #2 | 0 | - | 4.02 | 21,114 |
| Rhyming Vocabulary #1 | 0 | - | 3.86 | 9,426 |
| Five Letter Vocabulary Chain | 0 | - | 3.78 | 19,727 |
| Video Games by Synonyms | 0 | - | 4.50 | 64,823 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,830 |
| History Multiple Choice #6 | 0 | - | 4.46 | 17,975 |
| The 7th, 8th, 9th and 10th Century BC | 0 | - | 4.67 | 17,735 |
| History General Knowledge #13 | 0 | - | 4.69 | 48,692 |
