| Prime Ministers of the UK | 0 | - | 4.95 | 387,454 |
| Political Figures by Last Name #2 | 0 | - | 4.05 | 14,967 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.54 | 451,311 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.41 | 657,692 |
| Canadian Prime Ministers Quiz | 0 | - | 4.65 | 50,657 |
| G7 Leaders Since 2003 | 0 | - | 4.46 | 39,046 |
| World Leaders by Picture | 0 | - | 4.38 | 242,917 |
| Famous Dictators Quiz #1 | 0 | - | 4.69 | 185,355 |
| Dictators by Picture | 0 | - | 4.24 | 45,103 |
| Historical Leaders by Date #1 | 0 | - | 4.46 | 28,546 |
| Historical Leaders by Date #2 | 0 | - | 4.54 | 27,472 |
| Historical Rulers #2 | 0 | - | 4.26 | 43,601 |
| Historical Rulers #1 | 0 | - | 4.32 | 112,218 |
| Words for Leaders | 0 | - | 4.80 | 220,439 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 102,902 |
| UN Secretaries-General | 0 | - | 4.42 | 7,198 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,509 |
| Famous Dictators Quiz #2 | 0 | - | 4.34 | 80,511 |
| Countries of the Popes | 0 | - | 4.84 | 113,529 |
| Brand Logos Quiz #1 | 0 | - | 4.81 | 2,158,432 |
| Spouses of World Leaders | 0 | - | 4.16 | 11,669 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 25,255 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 18,497 |
| Biblical Names Still Popular Today | 0 | - | 4.26 | 48,146 |
| "Second Best" History Edition | 0 | - | 4.94 | 48,319 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,057 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,713 |
| Famous Empires in History | 0 | - | 4.83 | 106,198 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 78,148 |
| Category Elimination - Country Flags #1 | 0 | - | 4.97 | 127,822 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,383 |
| World Leaders of the Cold War | 0 | - | 4.34 | 22,707 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.76 | 59,190 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 24,301 |
| English First Names of the Middle Ages | 0 | - | 4.41 | 46,013 |
| Members of the British Royal Family | 0 | - | 4.11 | 109,905 |
| Superhero Nicknames | 0 | - | 4.20 | 57,847 |
| Former Countries by Territory Map | 0 | - | 4.96 | 87,501 |
| Empires by Maps | 0 | - | 4.98 | 97,317 |
| World Leaders of the World Wars | 0 | - | 4.39 | 34,746 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 88,269 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 41,090 |
| Name the Popes Quiz | 0 | - | 4.46 | 124,836 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 47,144 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,762 |
| NFL Football Last Names | 0 | - | 4.43 | 159,517 |
| Bible Quotes Quiz #1 | 0 | - | 4.42 | 56,878 |
| Bible Quotes Quiz #3 | 0 | - | 4.44 | 40,481 |
| Brand Logos Quiz #2 | 0 | - | 4.72 | 1,529,653 |
| Brand Logos Quiz #5 | 0 | - | 4.43 | 960,825 |
| Brand Logos Quiz #4 | 0 | - | 4.44 | 908,544 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 197,769 |
| Metals of Antiquity | 0 | - | 4.94 | 86,373 |
| Animals in World History | 0 | - | 4.82 | 40,917 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 40,602 |
| History: What Came First? #1 | 0 | - | 4.84 | 92,782 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.32 | 40,233 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 662,883 |
| Political Movements by Country | 0 | - | 4.47 | 69,127 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 404,819 |
| Years in History #1 - Multiple Choice | 0 | - | 4.84 | 63,945 |
| World City Nicknames Quiz | 0 | - | 4.20 | 33,976 |
| U.S. State Nicknames Quiz | 0 | - | 4.48 | 46,809 |
| Game of Thrones Last Names | 0 | - | 4.47 | 94,324 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 196,116 |
| Name the Constellations Quiz | 0 | - | 4.57 | 41,743 |
| Cradles of Civilization | 0 | - | 4.42 | 33,110 |
| Materials From History #1 | 0 | - | 4.54 | 45,557 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 21,155 |
| Pope Facts | 0 | - | 4.41 | 28,492 |
| First Names of Painters | 0 | - | 4.38 | 56,771 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 135,359 |
| Famous Explorers | 0 | - | 4.65 | 33,012 |
| Answers by Time Period | 0 | - | 4.50 | 43,093 |
| Territorial Accessions | 0 | - | 4.43 | 32,502 |
| Countries Italy Declared War On | 0 | - | 4.76 | 40,464 |
| NATO Countries Quiz | 0 | - | 4.98 | 229,380 |
| EU Countries Quiz | 0 | - | 4.99 | 231,441 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 76,700 |
| NBA Basketball Nicknames Quiz #1 | 0 | - | 4.25 | 142,863 |
| NBA Basketball Nicknames Quiz #2 | 0 | - | 4.12 | 54,348 |
| Countries as U.S. First Names | 0 | - | 4.26 | 71,174 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 66,318 |
| Asian Last Names in the United States | 0 | - | 4.42 | 43,825 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,910 |
| NBA Players by Last Name | 0 | - | 4.28 | 76,754 |
| Bible Quotes Quiz #2 | 0 | - | 4.29 | 49,908 |
| American Corporate Slogans Quiz #1 | 0 | - | 4.05 | 63,648 |
| American Corporate Slogans Quiz #2 | 0 | - | 4.02 | 58,466 |
| Highest Grossing Superhero Movies | 0 | - | 4.37 | 156,566 |
| MCU Actors by Picture | 0 | - | 4.44 | 73,480 |
| Brand Logos Quiz #6 | 0 | - | 4.29 | 679,804 |
| Strongest Nation Brands | 0 | - | 4.51 | 34,399 |
| Brand Logos Quiz #3 | 0 | - | 4.34 | 1,111,006 |
| Brand Logos Quiz #8 | 0 | - | 4.33 | 458,577 |
| Brand Logos Quiz #7 | 0 | - | 4.38 | 533,502 |
| Random Brand Logos | 0 | - | 4.46 | 360,904 |
| Influential Women in History | 0 | - | 4.47 | 30,690 |
| Former Flags | 0 | - | 4.97 | 82,905 |
| Historical Events - AD or BC? | 0 | - | 4.74 | 52,821 |
| Materials From History #2 | 0 | - | 4.58 | 25,066 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 27,156 |
| Flags of WW1 | 0 | - | 4.70 | 33,150 |
| 20th Century Dates Quiz | 0 | - | 4.53 | 38,113 |
| Events in History #2 | 0 | - | 4.47 | 67,559 |
| Events in History #4 | 0 | - | 4.44 | 41,463 |
| Name a Valid Year in History | 0 | - | 4.92 | 55,020 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.18 | 46,844 |
| Assassinations in History Quiz | 0 | - | 4.17 | 63,403 |
| Famous Seconds Quiz | 0 | - | 4.21 | 44,740 |
| Ages and Eras Quiz | 0 | - | 4.35 | 64,848 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.22 | 38,424 |
| Titled People Quiz #1 | 0 | - | 4.14 | 44,024 |
| Titled People Quiz #3 | 0 | - | 4.33 | 41,480 |
| Job Titles Quiz #1 | 0 | - | 4.23 | 73,797 |
| Historical Blunders | 0 | - | 4.31 | 87,799 |
| Last Names in U.S. History #1 | 0 | - | 4.24 | 34,492 |
| Last Names in U.S. History #2 | 0 | - | 4.42 | 16,221 |
| Political Quotes Quiz | 0 | - | 4.09 | 19,077 |
| This Day in History - April | 0 | - | 4.42 | 43,483 |
| This Day in History - July | 0 | - | 4.48 | 35,311 |
| This Day in History - August | 0 | - | 4.41 | 42,014 |
| This Day in History - September | 0 | - | 4.55 | 55,256 |
| This Day in History - October | 0 | - | 4.49 | 36,477 |
| This Day in History - January | 0 | - | 4.53 | 44,791 |
| This Day in History - February | 0 | - | 4.41 | 38,601 |
| This Day in History - March | 0 | - | 4.44 | 42,195 |
| The 7 Wonders of the Ancient World | 0 | - | 4.80 | 65,823 |
| Ancient Civilizations | 0 | - | 4.56 | 34,950 |
| Military History Vocabulary | 0 | - | 4.92 | 61,040 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,440 |
| The Places They Went #1 | 0 | - | 4.76 | 32,555 |
| Famous Inventors | 0 | - | 4.44 | 42,563 |
| British History Quiz for Dummies | 0 | - | 4.54 | 62,510 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.14 | 955,391 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 224,325 |
| U.S. Bill of Rights | 0 | - | 4.53 | 31,227 |
| American Political Words | 0 | - | 4.41 | 22,465 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.59 | 25,088 |
| Unusual NBA Names Quiz | 0 | - | 3.77 | 185,152 |
| Unusual NFL First Names Quiz | 0 | - | 3.58 | 45,655 |
| NFL Team Nicknames | 0 | - | 3.90 | 89,425 |
| Country Nicknames | 0 | - | 3.95 | 96,094 |
| Rappers Real Names | 0 | - | 4.06 | 64,920 |
| Bible Quotes Quiz #4 | 0 | - | 4.32 | 31,468 |
| Quotes of Jesus | 0 | - | 4.21 | 12,586 |
| Horror Movie Quotes Quiz | 0 | - | 4.15 | 48,735 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,209,459 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,631 |
| MCU Characters by Screen Time | 0 | - | 4.18 | 95,402 |
| Brand-Name Animals Quiz | 0 | - | 4.22 | 71,612 |
| Clothing Brand Logos | 0 | - | 4.24 | 193,834 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.42 | 51,683 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 123,425 |
| Soft Drink Brand Logos | 0 | - | 4.25 | 159,613 |
| Countries Mentioned in the Bible | 0 | - | 4.97 | 57,665 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,146 |
| History Analogies #1 | 0 | - | 4.47 | 76,563 |
| History Analogies #2 | 0 | - | 4.51 | 65,001 |
| Current Events by Year, 1990–2009 | 0 | - | 4.78 | 145,571 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 62,071 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 49,860 |
| History Analogies #3 | 0 | - | 4.54 | 67,151 |
| People Born on Islands | 0 | - | 4.41 | 40,462 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,458 |
| Which Came First? | 0 | - | 4.35 | 69,935 |
| Years in History by Picture | 0 | - | 4.43 | 30,579 |
| Valid Answer - World History #2 | 0 | - | 4.42 | 40,192 |
| Random History by Country | 0 | - | 4.54 | 31,866 |
| Valid Answer - World History #1 | 0 | - | 4.58 | 57,081 |
| History True or False #3 | 0 | - | 4.55 | 37,752 |
| A to Z: Legendary Creatures | 0 | - | 4.31 | 48,867 |
| Arthurian Legend | 0 | - | 4.35 | 24,380 |
| Normandy D-Day Beaches | 0 | - | 4.81 | 37,142 |
| WWII Figures by Picture | 0 | - | 4.87 | 41,781 |
| Territory Changes in World War I | 0 | - | 4.87 | 41,028 |
| Events in History #3 | 0 | - | 4.35 | 68,219 |
| Events in History #1 | 0 | - | 4.32 | 150,726 |
| Events in Ancient History | 0 | - | 4.49 | 32,514 |
| People Who Died Young #1 | 0 | - | 4.24 | 61,944 |
| Deaths by Date and Cause #1 | 0 | - | 4.39 | 78,260 |
| Deaths by Date and Cause #2 | 0 | - | 4.04 | 50,400 |
| Famous Firsts #1 | 0 | - | 4.42 | 66,214 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 67,242 |
| Invasions | 0 | - | 4.70 | 90,440 |
| First Names of Historical Figures #1 | 0 | - | 4.41 | 218,213 |
| This Day in History - May | 0 | - | 4.30 | 47,132 |
| This Day in History - June | 0 | - | 4.34 | 32,754 |
| This Day in History - November | 0 | - | 4.23 | 32,702 |
| This Day in History - December | 0 | - | 4.30 | 39,320 |
| The 19th Century | 0 | - | 4.51 | 63,367 |
| The 18th Century | 0 | - | 4.50 | 49,363 |
| The 16th Century | 0 | - | 4.71 | 50,605 |
| The 21st Century | 0 | - | 4.50 | 95,806 |
| History by Picture - N | 0 | - | 4.41 | 37,114 |
| History Multiple Choice #1 | 0 | - | 4.44 | 76,840 |
| History Multiple Choice #2 | 0 | - | 4.43 | 47,326 |
| History Multiple Choice #3 | 0 | - | 4.45 | 46,241 |
| English Monarchs Quiz | 0 | - | 4.91 | 454,771 |
| Dark Ages History | 0 | - | 4.43 | 31,748 |
