| People Depicted in Paintings | 0 | - | 4.54 | 44,519 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,792 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,026 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,641 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,512 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,848 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,211 |
| Empires A-Z | 0 | - | 4.51 | 45,014 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,304 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,532 |
| History by Letter - A | 0 | - | 4.51 | 152,544 |
| History by Letter - B | 0 | - | 4.45 | 171,766 |
| History by Letter - C | 0 | - | 4.70 | 170,904 |
| History by Letter - E | 0 | - | 4.51 | 140,272 |
| History by Letter - G | 0 | - | 4.46 | 121,802 |
| History by Letter - H | 0 | - | 4.45 | 136,264 |
| History by Letter - J | 0 | - | 4.51 | 153,704 |
| History by Letter - N | 0 | - | 4.45 | 103,694 |
| History by Letter - S | 0 | - | 4.47 | 93,948 |
| History by Letter - W | 0 | - | 4.45 | 109,072 |
| History by Letter - M | 0 | - | 4.54 | 119,576 |
| History by Letter - K | 0 | - | 4.50 | 101,124 |
| History by Letter - L | 0 | - | 4.50 | 111,835 |
| History by Letter - I | 0 | - | 4.46 | 103,992 |
| NATO Military Alphabet | 0 | - | 4.98 | 557,163 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 799,918 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,288 |
| Empires by Maps | 0 | - | 4.98 | 119,558 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,494 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,927 |
| Name the War | 0 | - | 4.37 | 201,268 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,480 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,969 |
| Famous Families #1 | 0 | - | 4.20 | 83,517 |
| Names for Warriors | 0 | - | 4.40 | 36,874 |
| Famous Firsts #2 | 0 | - | 4.01 | 80,959 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,266 |
| Countries by Military Spending | 0 | - | 4.93 | 177,062 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,774 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,184 |
| People in History A-Z #1 | 0 | - | 4.61 | 98,843 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,972 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,077 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,304 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,420 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,647 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,311,297 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,281 |
| History by Letter - D | 0 | - | 4.39 | 137,261 |
| History by Letter - F | 0 | - | 4.18 | 113,989 |
| History by Letter - O | 0 | - | 4.32 | 99,308 |
| History by Letter - P | 0 | - | 4.39 | 107,622 |
| History by Letter - Q | 0 | - | 4.34 | 80,176 |
| History by Letter - R | 0 | - | 4.26 | 121,962 |
| History by Letter - T | 0 | - | 4.39 | 105,100 |
| History by Letter - U | 0 | - | 4.19 | 100,617 |
| History by Letter - V | 0 | - | 4.27 | 80,609 |
| History by Letter - Y | 0 | - | 4.27 | 87,127 |
| History by Letter - Z | 0 | - | 4.18 | 76,904 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,192 |
| History Containing the Letter X | 0 | - | 4.47 | 26,989 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,399 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,086 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 37,830 |
| Influential Women in History | 0 | - | 4.42 | 35,358 |
| Metals of Antiquity | 0 | - | 4.94 | 93,184 |
| Cradles of Civilization | 0 | - | 4.46 | 39,432 |
| Materials From History #1 | 0 | - | 4.56 | 51,380 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,477 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,882 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,999 |
| WWI... or WWII? | 0 | - | 4.85 | 141,540 |
| Oldest Things | 0 | - | 3.92 | 65,632 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,803 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,584 |
| Famous Explorers | 0 | - | 4.58 | 36,073 |
| Famous Empires by Description | 0 | - | 4.73 | 118,214 |
| Answers by Time Period | 0 | - | 4.64 | 55,448 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,606 |
| 20th Century A-Z | 0 | - | 4.50 | 53,307 |
| 19th Century A-Z | 0 | - | 4.77 | 46,848 |
| 18th Century A-Z | 0 | - | 4.54 | 42,729 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,083 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,524 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,005 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,143 |
| Notable People of WWII | 0 | - | 4.53 | 85,513 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,765 |
| World War I Quiz | 0 | - | 4.78 | 100,890 |
| WWI A-Z | 0 | - | 4.50 | 38,195 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,708 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,616 |
| History Ending in Z | 0 | - | 4.35 | 13,500 |
| Most Important People in History | 0 | - | 3.98 | 50,564 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,882 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 89,823 |
| Countries with the Least Dense Road Networks | 0 | - | 4.81 | 41,454 |
| Monarchies of the World | 0 | - | 4.94 | 167,563 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,158 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,388 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,909 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,886 |
| Numbers Tile Select Quiz | 0 | - | 4.98 | 74,393 |
| People on Money by Country | 0 | - | 4.83 | 60,191 |
| Astronomy Quiz | 0 | - | 4.90 | 82,190 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,543 |
| Solar System Trivia | 0 | - | 4.93 | 46,370 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,631 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,426 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,093 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,640 |
| Geography by Letter - T | 0 | - | 4.84 | 153,301 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 166,732 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.91 | 87,165 |
| Countries By Wikipedia Word Clouds | 0 | - | 4.83 | 39,428 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 117,053 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 70,355 |
| Years in History by Picture | 0 | - | 4.44 | 35,359 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,447 |
| Materials From History #2 | 0 | - | 4.59 | 31,419 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,366 |
| Events in History #2 | 0 | - | 4.49 | 71,586 |
| Events in History #4 | 0 | - | 4.44 | 44,220 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,919 |
| Assassinations in History | 0 | - | 4.21 | 66,107 |
| Famous Seconds | 0 | - | 4.22 | 46,509 |
| Ages and Eras | 0 | - | 4.38 | 67,594 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,457 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,729 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,118 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,929 |
| Female Historical Figures | 0 | - | 4.27 | 33,195 |
| Historical Blunders | 0 | - | 4.34 | 91,836 |
| Territorial Accessions | 0 | - | 4.39 | 34,720 |
| People Known as "The Great" | 0 | - | 4.46 | 24,602 |
| This Day in History - July | 0 | - | 4.49 | 36,419 |
| This Day in History - August | 0 | - | 4.42 | 43,318 |
| This Day in History - September | 0 | - | 4.55 | 57,366 |
| This Day in History - October | 0 | - | 4.49 | 37,590 |
| This Day in History - January | 0 | - | 4.50 | 46,649 |
| This Day in History - March | 0 | - | 4.45 | 43,601 |
| Ancient Civilizations | 0 | - | 4.64 | 37,863 |
| 16th Century A-Z | 0 | - | 4.58 | 24,459 |
| 15th Century A-Z | 0 | - | 4.49 | 23,451 |
| 14th Century A-Z | 0 | - | 4.41 | 23,890 |
| 17th Century A-Z | 0 | - | 4.78 | 34,244 |
| The Places They Went #1 | 0 | - | 4.74 | 33,490 |
| Famous Inventors | 0 | - | 4.43 | 43,503 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,012,521 |
| U.S. Army Ranks | 0 | - | 4.48 | 102,901 |
| Top 30 Most Powerful Militaries | 0 | - | 4.52 | 175,610 |
| Countries with Aircraft Carriers | 0 | - | 4.75 | 123,233 |
| Names of Army Units | 0 | - | 4.63 | 36,767 |
| Formula One World Champions | 0 | - | 4.96 | 387,993 |
| IMDB Top 100 Movies | 0 | - | 4.45 | 204,256 |
| Disney Animated Characters | 0 | - | 4.88 | 600,484 |
| Authors with Books Turned into Movies | 0 | - | 4.44 | 62,791 |
| Corporate Partnerships | 0 | - | 4.56 | 36,855 |
| Prime Numbers 1-100 | 0 | - | 4.53 | 126,462 |
| Perfect Squares | 0 | - | 4.53 | 102,193 |
| Digits of Pi | 0 | - | 4.24 | 1,160,789 |
| Fast Math - Addition | 0 | - | 4.87 | 521,586 |
| Mathematics General Knowledge | 0 | - | 4.47 | 66,675 |
| Major World Religions | 0 | - | 4.78 | 92,679 |
| Religion General Knowledge #1 | 0 | - | 4.41 | 92,151 |
| Religion General Knowledge #2 | 0 | - | 4.47 | 73,810 |
| Religion General Knowledge #3 | 0 | - | 4.46 | 69,225 |
| Religion General Knowledge #5 | 0 | - | 4.51 | 46,108 |
| Former Flags | 0 | - | 4.97 | 107,256 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,800 |
| WWII Trivia #1 | 0 | - | 4.36 | 177,240 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,723 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,516 |
| Cold War Decoder | 0 | - | 4.83 | 52,159 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,841 |
| People Who Died in Battle | 0 | - | 4.35 | 22,296 |
| History Generator Puzzle #1 | 0 | - | 4.00 | 39,679 |
| History Generator Puzzle #3 | 0 | - | 4.03 | 20,346 |
| History Generator Puzzle #6 | 0 | - | 4.05 | 17,493 |
| History Generator Puzzle #5 | 0 | - | 4.18 | 19,993 |
| History Generator Puzzle #8 | 0 | - | 4.14 | 18,794 |
| History Generator Puzzle #7 | 0 | - | 4.16 | 20,320 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,714 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.40 | 30,697 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,983 |
| Countries with the Most Skyscrapers | 0 | - | 4.92 | 143,792 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,450 |
| Countries with the Tallest Buildings | 0 | - | 4.93 | 104,102 |
| Formula One Countries Visited | 0 | - | 4.96 | 142,965 |
| Formula 1: Top 3 in Driver's Championship | 0 | - | 4.96 | 100,169 |
| Coldest Countries | 0 | - | 4.97 | 138,132 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,428 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,539 |
| Country Logic Puzzle 4x4 – Sudoku style | 0 | - | 4.99 | 27,936 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,834 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,518 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,063 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,574 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,738 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,450 |
