| Cold War Decoder | 0 | - | 4.83 | 52,234 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,319 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,354 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,628 |
| Astronomy Quiz | 0 | - | 4.90 | 82,337 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,815 |
| Solar System Trivia | 0 | - | 4.93 | 46,451 |
| WWI... or WWII? | 0 | - | 4.85 | 141,806 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,432 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,626 |
| Notable People of WWII | 0 | - | 4.53 | 85,575 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,842 |
| World War I Quiz | 0 | - | 4.78 | 101,112 |
| WWI A-Z | 0 | - | 4.50 | 38,245 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,954 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,294 |
| Empires A-Z | 0 | - | 4.52 | 45,084 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,714 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,571 |
| Roman Provinces on a Map | 0 | - | 4.54 | 36,834 |
| WWII Trivia #1 | 0 | - | 4.36 | 177,408 |
| History by Letter - A | 0 | - | 4.51 | 152,778 |
| History by Letter - B | 0 | - | 4.45 | 172,007 |
| History by Letter - C | 0 | - | 4.70 | 171,286 |
| History by Letter - E | 0 | - | 4.51 | 140,464 |
| History by Letter - G | 0 | - | 4.46 | 121,972 |
| History by Letter - H | 0 | - | 4.45 | 136,431 |
| History by Letter - J | 0 | - | 4.51 | 153,887 |
| History by Letter - N | 0 | - | 4.45 | 103,990 |
| History by Letter - S | 0 | - | 4.47 | 94,288 |
| History by Letter - W | 0 | - | 4.45 | 109,233 |
| History by Letter - M | 0 | - | 4.54 | 119,743 |
| History by Letter - K | 0 | - | 4.50 | 101,269 |
| History by Letter - L | 0 | - | 4.50 | 111,997 |
| History by Letter - I | 0 | - | 4.46 | 104,116 |
| NATO Military Alphabet | 0 | - | 4.98 | 558,115 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 801,073 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,479 |
| Empires by Maps | 0 | - | 4.98 | 119,869 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,908 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,124 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,677 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,573 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,949 |
| Name the War | 0 | - | 4.37 | 201,416 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,510 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,994 |
| Famous Families #1 | 0 | - | 4.20 | 83,551 |
| Names for Warriors | 0 | - | 4.40 | 36,896 |
| Famous Firsts #2 | 0 | - | 4.01 | 80,985 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,316 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,918 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,041 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,132 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,328 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,445 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,663 |
| Countries by Military Spending | 0 | - | 4.93 | 177,296 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,861 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,356 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,357 |
| 20th Century A-Z | 0 | - | 4.50 | 53,615 |
| 19th Century A-Z | 0 | - | 4.77 | 47,194 |
| 18th Century A-Z | 0 | - | 4.54 | 43,085 |
| History by Letter - D | 0 | - | 4.39 | 137,437 |
| History by Letter - F | 0 | - | 4.18 | 114,138 |
| History by Letter - O | 0 | - | 4.32 | 99,433 |
| History by Letter - P | 0 | - | 4.39 | 107,772 |
| History by Letter - Q | 0 | - | 4.34 | 80,274 |
| History by Letter - R | 0 | - | 4.26 | 122,106 |
| History by Letter - T | 0 | - | 4.39 | 105,208 |
| History by Letter - U | 0 | - | 4.19 | 100,726 |
| History by Letter - V | 0 | - | 4.27 | 80,705 |
| History by Letter - Y | 0 | - | 4.27 | 87,216 |
| History by Letter - Z | 0 | - | 4.20 | 76,991 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,212 |
| History Containing the Letter X | 0 | - | 4.47 | 27,015 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,421 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,114 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,313,233 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 28,163 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,182 |
| Metals of Antiquity | 0 | - | 4.94 | 93,269 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,558 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,026 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,490 |
| 1950s Decade Quiz | 0 | - | 4.41 | 49,163 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 44,863 |
| Oldest Things | 0 | - | 3.92 | 65,638 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,809 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,623 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,161 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,914 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,756 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,058 |
| Space in the Answers | 0 | - | 4.27 | 50,578 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,437 |
| The Mars Quiz | 0 | - | 4.55 | 18,632 |
| The Saturn Quiz | 0 | - | 4.54 | 11,538 |
| The Pluto Quiz | 0 | - | 4.61 | 9,820 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,855 |
| Influential Women in History | 0 | - | 4.42 | 35,475 |
| Cradles of Civilization | 0 | - | 4.46 | 39,532 |
| Materials From History #1 | 0 | - | 4.56 | 51,459 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,514 |
| Recently Independent Countries | 0 | - | 4.98 | 158,945 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,704 |
| Famous Explorers | 0 | - | 4.58 | 36,113 |
| Famous Empires by Description | 0 | - | 4.73 | 118,304 |
| Answers by Time Period | 0 | - | 4.64 | 55,500 |
| 16th Century A-Z | 0 | - | 4.58 | 24,828 |
| 15th Century A-Z | 0 | - | 4.49 | 23,868 |
| 14th Century A-Z | 0 | - | 4.41 | 24,296 |
| 17th Century A-Z | 0 | - | 4.78 | 34,568 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,724 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,639 |
| History Ending in Z | 0 | - | 4.35 | 13,514 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,933 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,203 |
| Most Important People in History | 0 | - | 3.98 | 50,624 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 90,572 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,320 |
| Countries with the Least Dense Road Networks | 0 | - | 4.81 | 41,495 |
| Formula One World Champions | 0 | - | 4.96 | 388,898 |
| Monarchies of the World | 0 | - | 4.94 | 167,930 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 112,301 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,532 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 114,046 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,969 |
| Disney Animated Characters | 0 | - | 4.88 | 600,876 |
| Numbers Tile Select Quiz | 0 | - | 4.98 | 74,496 |
| People on Money by Country | 0 | - | 4.83 | 60,249 |
| Fast Math - Addition | 0 | - | 4.87 | 522,006 |
| Astronomy True or False | 0 | - | 4.39 | 36,403 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,711 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,530 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,202 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,911 |
| Geography by Letter - T | 0 | - | 4.84 | 153,593 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 167,371 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.91 | 87,328 |
| Countries By Wikipedia Word Clouds | 0 | - | 4.83 | 39,544 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 117,143 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 70,390 |
| Former Flags | 0 | - | 4.97 | 107,421 |
| Years in History by Picture | 0 | - | 4.44 | 35,418 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,492 |
| Materials From History #2 | 0 | - | 4.59 | 31,448 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,859 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,821 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,572 |
| 1960s Decade Quiz #1 | 0 | - | 4.40 | 49,996 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,381 |
| Events in History #2 | 0 | - | 4.49 | 71,627 |
| Events in History #4 | 0 | - | 4.44 | 44,249 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,980 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,948 |
| Assassinations in History | 0 | - | 4.21 | 66,148 |
| Famous Seconds | 0 | - | 4.22 | 46,538 |
| Ages and Eras | 0 | - | 4.39 | 67,641 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,465 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,756 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,139 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,949 |
| Female Historical Figures | 0 | - | 4.28 | 33,218 |
| Historical Blunders | 0 | - | 4.34 | 91,881 |
| People Who Died in Battle | 0 | - | 4.35 | 22,301 |
| Territorial Accessions | 0 | - | 4.36 | 34,753 |
| People Known as "The Great" | 0 | - | 4.46 | 24,627 |
| This Day in History - July | 0 | - | 4.49 | 36,433 |
| This Day in History - August | 0 | - | 4.42 | 43,331 |
| This Day in History - September | 0 | - | 4.55 | 57,393 |
| This Day in History - October | 0 | - | 4.49 | 37,604 |
| This Day in History - January | 0 | - | 4.50 | 46,669 |
| This Day in History - March | 0 | - | 4.45 | 43,628 |
| Ancient Civilizations | 0 | - | 4.64 | 37,900 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,596 |
| History Generator Puzzle #1 | 0 | - | 4.00 | 39,698 |
| History Generator Puzzle #3 | 0 | - | 4.03 | 20,356 |
| History Generator Puzzle #6 | 0 | - | 4.05 | 17,499 |
| History Generator Puzzle #5 | 0 | - | 4.18 | 20,005 |
| History Generator Puzzle #8 | 0 | - | 4.14 | 18,805 |
| History Generator Puzzle #7 | 0 | - | 4.16 | 20,354 |
| The Places They Went #1 | 0 | - | 4.74 | 33,501 |
| Famous Inventors | 0 | - | 4.43 | 43,518 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,088 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,922 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,787 |
| European History for Dummies | 0 | - | 4.83 | 89,724 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.40 | 30,711 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,004 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,012,985 |
| U.S. Army Ranks | 0 | - | 4.48 | 103,398 |
| Top 30 Most Powerful Militaries | 0 | - | 4.52 | 175,755 |
| Countries with Aircraft Carriers | 0 | - | 4.75 | 123,295 |
| Names of Army Units | 0 | - | 4.63 | 36,816 |
| Countries with the Most Skyscrapers | 0 | - | 4.92 | 143,901 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,493 |
| Countries with the Tallest Buildings | 0 | - | 4.93 | 104,195 |
| Formula One Countries Visited | 0 | - | 4.96 | 143,194 |
