| Metals of Antiquity | 0 | - | 4.94 | 92,810 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,993 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,967 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,605 |
| Nicknames in World History | 0 | - | 4.73 | 37,288 |
| Quotes from Historical Figures #1 | 0 | - | 4.50 | 87,076 |
| Historical Middle Names | 0 | - | 4.16 | 35,333 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,196 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 228,500 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,298 |
| Empires by Maps | 0 | - | 4.98 | 118,134 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,139 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,033 |
| First Names of Explorers Quiz | 0 | - | 4.43 | 18,237 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,079 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,053 |
| Mythical Lands | 0 | - | 4.26 | 85,134 |
| Albert Einstein Trivia | 0 | - | 4.57 | 18,302 |
| Historical Middle Names - U.S. | 0 | - | 3.83 | 60,759 |
| Famous Mottos | 0 | - | 3.46 | 48,486 |
| Saint in the Answers | 0 | - | 4.10 | 44,120 |
| First Name + Initial Quiz | 0 | - | 4.03 | 52,707 |
| Historical Figures Known by a Single Name #1 | 0 | - | 4.31 | 84,414 |
| The Diseases They Had | 0 | - | 4.15 | 13,875 |
| Quotes from Historical Figures #2 | 0 | - | 4.36 | 42,486 |
| Ben Franklin Quotes | 0 | - | 4.45 | 25,741 |
| Famous Speeches from History | 0 | - | 4.16 | 33,514 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,602 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,958 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,570 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,906 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,945 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,299 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,294 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,136 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,784 |
| Influential Women in History | 0 | - | 4.42 | 34,891 |
| Cradles of Civilization | 0 | - | 4.46 | 38,947 |
| Popular Royal Names | 0 | - | 4.27 | 124,424 |
| Materials From History #1 | 0 | - | 4.56 | 50,513 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,976 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 703,933 |
| First Names of Painters | 0 | - | 4.43 | 59,567 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,061 |
| Famous Explorers | 0 | - | 4.58 | 35,909 |
| Famous Empires by Description | 0 | - | 4.70 | 117,459 |
| Answers by Time Period | 0 | - | 4.63 | 55,220 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,254 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,269 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,389 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,568 |
| Historical Misquotes | 0 | - | 4.39 | 26,614 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,645 |
| Random Symbol to Element | 0 | - | 4.88 | 92,110 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,519 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,121 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,806 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,806 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,051 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,228 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,364 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,965 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,169 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,449 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,415 |
| Countries with Four Letters | 0 | - | 4.99 | 418,006 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,066 |
| Random Country to Capital | 0 | - | 4.98 | 910,412 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,479 |
| Name a Valid World City | 0 | - | 4.83 | 69,984 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,612 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,012 |
| Former Flags | 0 | - | 4.97 | 106,519 |
| Years in History by Picture | 0 | - | 4.44 | 35,043 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,142 |
| Materials From History #2 | 0 | - | 4.59 | 30,892 |
| Cold War Decoder | 0 | - | 4.83 | 51,872 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,297 |
| Events in History #2 | 0 | - | 4.49 | 71,375 |
| Events in History #4 | 0 | - | 4.44 | 44,066 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,260 |
| 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 | 67,413 |
| 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 | 91,633 |
| Territorial Accessions | 0 | - | 4.38 | 34,610 |
| People Known as "The Great" | 0 | - | 4.46 | 24,489 |
| 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 | 37,541 |
| This Day in History - January | 0 | - | 4.53 | 46,549 |
| This Day in History - March | 0 | - | 4.45 | 43,524 |
| Ancient Civilizations | 0 | - | 4.63 | 37,720 |
| 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 |
| European History for Dummies | 0 | - | 4.82 | 89,216 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,009,946 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,731 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,185 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,546 |
| Countries with Glaciers | 0 | - | 4.97 | 104,581 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,466 |
| Islands by Country #1 | 0 | - | 4.87 | 174,388 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,835 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,202 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,274 |
| Crayola Crayon Colors 64 Pack | 0 | - | 4.99 | 61,966 |
| Countries by Emojis | 0 | - | 4.99 | 235,773 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 30,845 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,119 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,258 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,014 |
| Country Chain | 0 | - | 4.96 | 215,544 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,465 |
| Capital Cities Chain | 0 | - | 4.84 | 81,796 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,855 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,514 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,521 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,823 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,061 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,216 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,539 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,165 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,265 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,785 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,089 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,272 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,224 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,672 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.75 | 38,132 |
| History Analogies #1 | 0 | - | 4.53 | 89,743 |
| History Analogies #2 | 0 | - | 4.49 | 76,961 |
| 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 | 80,398 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,090 |
| Which Came First? | 0 | - | 4.37 | 74,355 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,480 |
| Random History by Country | 0 | - | 4.53 | 34,634 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,491 |
| Animals in World History | 0 | - | 4.74 | 44,184 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,325 |
| History True or False #3 | 0 | - | 4.43 | 55,870 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 46,817 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,700 |
| WWII First Names | 0 | - | 4.45 | 41,529 |
| 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 | 157,181 |
| 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 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,475 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,862 |
| Political Quotes | 0 | - | 4.17 | 19,797 |
| 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 | 33,422 |
| This Day in History - November | 0 | - | 4.24 | 33,521 |
| This Day in History - December | 0 | - | 4.31 | 40,439 |
| This Day in History - February | 0 | - | 4.38 | 39,687 |
| The 19th Century | 0 | - | 4.53 | 67,846 |
| The 18th Century | 0 | - | 4.52 | 53,097 |
| The 16th Century | 0 | - | 4.77 | 58,716 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,512 |
| The 21st Century | 0 | - | 4.48 | 105,206 |
| Military History Vocabulary | 0 | - | 4.91 | 66,573 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,468 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,380 |
| 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 | 32,243 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,164 |
| Dark Ages History | 0 | - | 4.42 | 32,667 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,745 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,211 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,547 |
| The Sun Quiz | 0 | - | 4.93 | 34,020 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,032 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,421 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,508 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,556 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,180 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,533 |
| The Eleven Colors | 0 | - | 4.73 | 233,152 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 331,922 |
| MLS Soccer Teams | 0 | - | 4.23 | 83,894 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,020 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,306 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,360 |
