| Prime Ministers of the UK | 0 | - | 4.96 | 434,010 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,824 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,572 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,108 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,128 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,957 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,082 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,638 |
| World Leaders by Picture | 0 | - | 4.36 | 263,144 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,606 |
| Dictators by Picture | 0 | - | 4.17 | 48,828 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,198 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,024 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,162 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,419 |
| Words for Leaders | 0 | - | 4.77 | 254,849 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,593 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,031 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,735 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,398,561 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,277 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,622 |
| UN Secretaries-General | 0 | - | 4.40 | 7,754 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,530 |
| Biblical Names Still Popular Today | 0 | - | 4.27 | 51,083 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,605 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,985 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,559 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,832 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,204 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,096 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,231 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,610 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,278 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,778 |
| Superhero Nicknames | 0 | - | 4.21 | 61,174 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,290 |
| Empires by Maps | 0 | - | 4.98 | 118,125 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,633 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,342 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 46,796 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,238 |
| Name the Popes Quiz | 0 | - | 4.47 | 136,937 |
| Countries of the Popes | 0 | - | 4.79 | 127,060 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,139 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,032 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,539 |
| NFL Football Last Names | 0 | - | 4.43 | 170,413 |
| Bible Quotes Quiz #1 | 0 | - | 4.41 | 61,224 |
| Bible Quotes Quiz #3 | 0 | - | 4.47 | 43,167 |
| Brand Logos Quiz #2 | 0 | - | 4.69 | 1,677,615 |
| Brand Logos Quiz #4 | 0 | - | 4.45 | 1,004,863 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 217,959 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,246 |
| Metals of Antiquity | 0 | - | 4.94 | 92,810 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,077 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,052 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,258 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 703,919 |
| First Names of Painters | 0 | - | 4.43 | 59,567 |
| Political Movements by Country | 0 | - | 4.46 | 72,220 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,056 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,602 |
| World City Nicknames Quiz | 0 | - | 4.19 | 35,446 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,229 |
| Game of Thrones Last Names | 0 | - | 4.51 | 101,889 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 223,246 |
| Name the Constellations | 0 | - | 4.58 | 44,617 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,389 |
| Influential Women in History | 0 | - | 4.42 | 34,891 |
| Cradles of Civilization | 0 | - | 4.46 | 38,947 |
| Materials From History #1 | 0 | - | 4.56 | 50,513 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,976 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,805 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,291 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,061 |
| Famous Explorers | 0 | - | 4.58 | 35,909 |
| Famous Empires by Description | 0 | - | 4.70 | 117,457 |
| Answers by Time Period | 0 | - | 4.63 | 55,220 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,905 |
| NATO Countries | 0 | - | 4.98 | 275,047 |
| EU Countries Quiz | 0 | - | 4.99 | 269,384 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,703 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,363 |
| NBA Basketball Nicknames Quiz #1 | 0 | - | 4.23 | 148,370 |
| NBA Basketball Nicknames #2 | 0 | - | 4.09 | 57,132 |
| Countries as U.S. First Names | 0 | - | 4.31 | 77,291 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,416 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,479 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,460 |
| NBA Players by Last Name | 0 | - | 4.30 | 83,778 |
| Bible Quotes Quiz #2 | 0 | - | 4.27 | 52,465 |
| Bible Quotes Quiz #4 | 0 | - | 4.33 | 33,262 |
| The Bible - Who Said That? | 0 | - | 4.51 | 24,470 |
| American Corporate Slogans #1 | 0 | - | 4.06 | 65,159 |
| American Corporate Slogans #2 | 0 | - | 4.06 | 59,592 |
| Highest Grossing Superhero Movies | 0 | - | 4.37 | 165,749 |
| MCU Actors by Picture | 0 | - | 4.44 | 82,931 |
| Marketing Slogans for Animals | 0 | - | 4.48 | 29,105 |
| Brand Logos Quiz #5 | 0 | - | 4.38 | 1,056,964 |
| Brand Logos Quiz #6 | 0 | - | 4.32 | 777,987 |
| Strongest Nation Brands | 0 | - | 4.50 | 37,301 |
| Brand Logos Quiz #3 | 0 | - | 4.32 | 1,217,257 |
| Brand Logos Quiz #8 | 0 | - | 4.36 | 526,623 |
| Brand Logos Quiz #7 | 0 | - | 4.36 | 604,795 |
| Random Brand Logos | 0 | - | 4.45 | 399,014 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,064 |
| Former Flags | 0 | - | 4.97 | 106,513 |
| Years in History by Picture | 0 | - | 4.44 | 35,041 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,140 |
| Materials From History #2 | 0 | - | 4.59 | 30,892 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,480 |
| Pope Facts | 0 | - | 4.39 | 31,010 |
| Flags of WW1 | 0 | - | 4.60 | 37,866 |
| Cold War Decoder | 0 | - | 4.83 | 51,872 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,297 |
| Events in History #2 | 0 | - | 4.49 | 71,373 |
| Events in History #4 | 0 | - | 4.44 | 44,065 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,256 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,783 |
| Assassinations in History | 0 | - | 4.20 | 65,916 |
| Famous Seconds | 0 | - | 4.22 | 46,363 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,413 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,375 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,582 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,003 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,799 |
| Female Historical Figures | 0 | - | 4.31 | 33,068 |
| Historical Blunders | 0 | - | 4.33 | 91,633 |
| Territorial Accessions | 0 | - | 4.38 | 34,609 |
| People Known as "The Great" | 0 | - | 4.46 | 24,489 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,060 |
| Political Quotes | 0 | - | 4.17 | 19,797 |
| 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 | 57,231 |
| This Day in History - October | 0 | - | 4.49 | 37,540 |
| This Day in History - January | 0 | - | 4.53 | 46,548 |
| This Day in History - March | 0 | - | 4.45 | 43,524 |
| Ancient Civilizations | 0 | - | 4.63 | 37,720 |
| Military History Vocabulary | 0 | - | 4.91 | 66,568 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,634 |
| The Places They Went #1 | 0 | - | 4.74 | 33,432 |
| Famous Inventors | 0 | - | 4.43 | 43,439 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,404 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,034 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,009,934 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,135 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,510 |
| Unusual NBA Names | 0 | - | 3.80 | 190,959 |
| Unusual NFL First Names | 0 | - | 3.60 | 47,558 |
| NFL Team Nicknames | 0 | - | 3.89 | 92,783 |
| Country Nicknames | 0 | - | 3.95 | 97,754 |
| Rappers Real Names | 0 | - | 4.08 | 68,879 |
| Quotes of Jesus | 0 | - | 4.23 | 13,689 |
| Horror Movie Quotes Quiz | 0 | - | 4.19 | 51,022 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,487 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,043 |
| MCU Characters by Screen Time | 0 | - | 4.22 | 107,259 |
| Brand-Name Animals | 0 | - | 4.16 | 74,238 |
| Clothing Brand Logos | 0 | - | 4.24 | 221,697 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,538 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,234 |
| Soft Drink Brand Logos | 0 | - | 4.24 | 173,687 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 65,945 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,672 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,993 |
| History Analogies #1 | 0 | - | 4.53 | 89,740 |
| History Analogies #2 | 0 | - | 4.49 | 76,957 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,059 |
| 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 | 80,395 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,088 |
| Which Came First? | 0 | - | 4.37 | 74,355 |
| Random History by Country | 0 | - | 4.53 | 34,634 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,490 |
| Animals in World History | 0 | - | 4.74 | 44,183 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,324 |
| History True or False #3 | 0 | - | 4.43 | 55,867 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,699 |
| Arthurian Legend | 0 | - | 4.33 | 25,044 |
| WWII Geography | 0 | - | 4.81 | 119,247 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,064 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,393 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,171 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,896 |
| Events in History #3 | 0 | - | 4.40 | 71,405 |
| Events in History #1 | 0 | - | 4.34 | 157,179 |
| 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 | 94,831 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,434 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,474 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,861 |
| This Day in History - April | 0 | - | 4.39 | 44,375 |
| This Day in History - May | 0 | - | 4.32 | 48,235 |
| This Day in History - June | 0 | - | 4.35 | 33,421 |
| This Day in History - November | 0 | - | 4.24 | 33,521 |
| This Day in History - December | 0 | - | 4.31 | 40,439 |
