| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,422 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,611 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,846 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,414 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,524 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,037 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,126 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,675 |
| World Leaders by Picture | 0 | - | 4.36 | 263,385 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,767 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,593 |
| Dictators by Picture | 0 | - | 4.18 | 48,864 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,219 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,058 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,205 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,475 |
| Words for Leaders | 0 | - | 4.77 | 255,115 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,630 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,797 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,090 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,755 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,401,713 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,285 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,653 |
| UN Secretaries-General | 0 | - | 4.40 | 7,761 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,544 |
| Name the English Monarchs | 0 | - | 4.92 | 497,852 |
| Biblical Names Still Popular Today | 0 | - | 4.27 | 51,106 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,790 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,998 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,574 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,965 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,378 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,118 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,315 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,634 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,319 |
| Superhero Nicknames | 0 | - | 4.21 | 61,219 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,530 |
| Empires by Maps | 0 | - | 4.98 | 118,468 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,650 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,425 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,513 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,257 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,145 |
| Countries of the Popes | 0 | - | 4.79 | 127,204 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,217 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,088 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,614 |
| NFL Football Last Names | 0 | - | 4.43 | 170,529 |
| Bible Quotes Quiz #1 | 0 | - | 4.41 | 61,288 |
| Bible Quotes Quiz #3 | 0 | - | 4.47 | 43,199 |
| Brand Logos Quiz #2 | 0 | - | 4.69 | 1,679,165 |
| Brand Logos Quiz #4 | 0 | - | 4.45 | 1,005,810 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,526 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,495 |
| Metals of Antiquity | 0 | - | 4.94 | 92,901 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,160 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,179 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,288 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,315 |
| Political Movements by Country | 0 | - | 4.46 | 72,258 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,506 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,649 |
| World City Nicknames Quiz | 0 | - | 4.19 | 35,458 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,261 |
| Game of Thrones Last Names | 0 | - | 4.51 | 101,992 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 223,551 |
| Name the Constellations | 0 | - | 4.58 | 44,655 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,441 |
| Influential Women in History | 0 | - | 4.42 | 34,986 |
| Cradles of Civilization | 0 | - | 4.46 | 39,050 |
| Materials From History #1 | 0 | - | 4.56 | 50,592 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,076 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,819 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,313 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,170 |
| Famous Explorers | 0 | - | 4.58 | 35,944 |
| Famous Empires by Description | 0 | - | 4.70 | 117,541 |
| Answers by Time Period | 0 | - | 4.63 | 55,263 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,944 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,290 |
| NATO Countries | 0 | - | 4.98 | 275,689 |
| EU Countries Quiz | 0 | - | 4.99 | 269,889 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,734 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,375 |
| NBA Basketball Nicknames Quiz #1 | 0 | - | 4.23 | 148,466 |
| NBA Basketball Nicknames #2 | 0 | - | 4.09 | 57,187 |
| Countries as U.S. First Names | 0 | - | 4.31 | 77,332 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,442 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,507 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,473 |
| NBA Players by Last Name | 0 | - | 4.30 | 83,898 |
| Bible Quotes Quiz #2 | 0 | - | 4.27 | 52,498 |
| Bible Quotes Quiz #4 | 0 | - | 4.33 | 33,280 |
| The Bible - Who Said That? | 0 | - | 4.51 | 24,488 |
| American Corporate Slogans #1 | 0 | - | 4.06 | 65,172 |
| American Corporate Slogans #2 | 0 | - | 4.06 | 59,602 |
| Highest Grossing Superhero Movies | 0 | - | 4.37 | 165,870 |
| MCU Actors by Picture | 0 | - | 4.44 | 83,067 |
| Marketing Slogans for Animals | 0 | - | 4.48 | 29,118 |
| Brand Logos Quiz #5 | 0 | - | 4.38 | 1,057,903 |
| Brand Logos Quiz #6 | 0 | - | 4.32 | 778,830 |
| Strongest Nation Brands | 0 | - | 4.50 | 37,334 |
| Brand Logos Quiz #3 | 0 | - | 4.32 | 1,218,266 |
| Brand Logos Quiz #8 | 0 | - | 4.36 | 527,180 |
| Brand Logos Quiz #7 | 0 | - | 4.37 | 605,399 |
| Random Brand Logos | 0 | - | 4.45 | 399,453 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,068 |
| Former Flags | 0 | - | 4.97 | 106,671 |
| Years in History by Picture | 0 | - | 4.44 | 35,100 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,183 |
| Materials From History #2 | 0 | - | 4.59 | 30,911 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,519 |
| Pope Facts | 0 | - | 4.39 | 31,038 |
| Flags of WW1 | 0 | - | 4.60 | 37,934 |
| Cold War Decoder | 0 | - | 4.83 | 51,920 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,318 |
| Events in History #2 | 0 | - | 4.49 | 71,424 |
| Events in History #4 | 0 | - | 4.44 | 44,095 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,382 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,815 |
| Assassinations in History | 0 | - | 4.20 | 65,949 |
| Famous Seconds | 0 | - | 4.22 | 46,390 |
| Ages and Eras | 0 | - | 4.38 | 67,453 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,396 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,611 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,036 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,819 |
| Female Historical Figures | 0 | - | 4.31 | 33,095 |
| Historical Blunders | 0 | - | 4.33 | 91,675 |
| Territorial Accessions | 0 | - | 4.38 | 34,628 |
| People Known as "The Great" | 0 | - | 4.46 | 24,517 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,076 |
| Political Quotes | 0 | - | 4.17 | 19,802 |
| This Day in History - July | 0 | - | 4.49 | 36,371 |
| This Day in History - August | 0 | - | 4.42 | 43,250 |
| This Day in History - September | 0 | - | 4.55 | 57,260 |
| This Day in History - October | 0 | - | 4.49 | 37,554 |
| This Day in History - January | 0 | - | 4.53 | 46,573 |
| This Day in History - March | 0 | - | 4.45 | 43,541 |
| Ancient Civilizations | 0 | - | 4.63 | 37,751 |
| Military History Vocabulary | 0 | - | 4.91 | 66,645 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,675 |
| The Places They Went #1 | 0 | - | 4.74 | 33,443 |
| Famous Inventors | 0 | - | 4.43 | 43,452 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,469 |
| English Royal Consorts | 0 | - | 4.37 | 37,159 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,608 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,102 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,010,896 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,319 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,539 |
| Unusual NBA Names | 0 | - | 3.80 | 191,065 |
| Unusual NFL First Names | 0 | - | 3.60 | 47,577 |
| NFL Team Nicknames | 0 | - | 3.89 | 92,815 |
| Country Nicknames | 0 | - | 3.95 | 97,764 |
| Rappers Real Names | 0 | - | 4.08 | 68,941 |
| Quotes of Jesus | 0 | - | 4.23 | 13,699 |
| Horror Movie Quotes Quiz | 0 | - | 4.19 | 51,050 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,694 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,139 |
| MCU Characters by Screen Time | 0 | - | 4.22 | 107,433 |
| Brand-Name Animals | 0 | - | 4.16 | 74,278 |
| Clothing Brand Logos | 0 | - | 4.24 | 221,985 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,571 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,354 |
| Soft Drink Brand Logos | 0 | - | 4.24 | 173,878 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 66,049 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,697 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,096 |
| History Analogies #1 | 0 | - | 4.53 | 89,776 |
| History Analogies #2 | 0 | - | 4.49 | 76,996 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,121 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,948 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,925 |
| History Analogies #3 | 0 | - | 4.61 | 80,428 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,142 |
| Which Came First? | 0 | - | 4.37 | 74,396 |
| Random History by Country | 0 | - | 4.53 | 34,656 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,541 |
| Animals in World History | 0 | - | 4.74 | 44,215 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,353 |
| History True or False #3 | 0 | - | 4.43 | 55,919 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,741 |
| Arthurian Legend | 0 | - | 4.33 | 25,050 |
| WWII Geography | 0 | - | 4.81 | 119,336 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,107 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,520 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,218 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,955 |
| Events in History #3 | 0 | - | 4.40 | 71,447 |
| Events in History #1 | 0 | - | 4.34 | 157,266 |
| Events in Ancient History | 0 | - | 4.50 | 35,707 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,539 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,888 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,472 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,544 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,912 |
| This Day in History - April | 0 | - | 4.40 | 44,390 |
