| History by Letter - B | 0 | - | 4.45 | 171,498 |
| History by Letter - C | 0 | - | 4.70 | 170,588 |
| History by Letter - E | 0 | - | 4.51 | 140,041 |
| History by Letter - G | 0 | - | 4.46 | 121,608 |
| History by Letter - H | 0 | - | 4.45 | 136,050 |
| History by Letter - J | 0 | - | 4.51 | 153,433 |
| History by Letter - N | 0 | - | 4.45 | 103,531 |
| History by Letter - S | 0 | - | 4.47 | 93,803 |
| History by Letter - W | 0 | - | 4.45 | 108,893 |
| History by Letter - M | 0 | - | 4.54 | 119,244 |
| History by Letter - K | 0 | - | 4.50 | 100,947 |
| History by Letter - L | 0 | - | 4.50 | 111,645 |
| History by Letter - I | 0 | - | 4.46 | 103,811 |
| History by Letter - D | 0 | - | 4.39 | 137,048 |
| History by Letter - F | 0 | - | 4.18 | 113,823 |
| History by Letter - O | 0 | - | 4.32 | 99,180 |
| History by Letter - P | 0 | - | 4.39 | 107,469 |
| History by Letter - Q | 0 | - | 4.34 | 80,067 |
| History by Letter - R | 0 | - | 4.26 | 121,798 |
| History by Letter - T | 0 | - | 4.39 | 104,976 |
| History by Letter - U | 0 | - | 4.19 | 100,473 |
| History by Letter - V | 0 | - | 4.27 | 80,481 |
| History by Letter - Y | 0 | - | 4.27 | 87,022 |
| History by Letter - Z | 0 | - | 4.18 | 76,817 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,147 |
| History Containing the Letter X | 0 | - | 4.47 | 26,959 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,370 |
| Empires A-Z | 0 | - | 4.51 | 44,919 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,690 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,571 |
| History Ending in Z | 0 | - | 4.35 | 13,479 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 129,067 |
| Geography by Letter - T | 0 | - | 4.84 | 152,774 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,718 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,895 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,020 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,471 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,145 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,899 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,267 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,571 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,106 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,697 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,568 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,317 |
| 20th Century A-Z | 0 | - | 4.50 | 53,232 |
| 19th Century A-Z | 0 | - | 4.77 | 46,789 |
| 18th Century A-Z | 0 | - | 4.54 | 42,682 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,160 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,687 |
| Countries That Were Invaded | 0 | - | 4.54 | 97,026 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,839 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,387 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,077 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,445 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,184 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,324 |
| 16th Century A-Z | 0 | - | 4.58 | 24,421 |
| 15th Century A-Z | 0 | - | 4.49 | 23,422 |
| 14th Century A-Z | 0 | - | 4.41 | 23,822 |
| 17th Century A-Z | 0 | - | 4.78 | 34,207 |
| NATO Military Alphabet | 0 | - | 4.98 | 555,527 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 798,820 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,872 |
| Geography by Letter - A | 0 | - | 4.74 | 210,558 |
| Geography by Letter - B | 0 | - | 4.56 | 183,581 |
| Geography by Letter - H | 0 | - | 4.69 | 149,496 |
| Geography by Letter - C | 0 | - | 4.47 | 157,830 |
| Geography by Letter - D | 0 | - | 4.50 | 149,740 |
| Geography by Letter - E | 0 | - | 4.42 | 146,876 |
| Geography by Letter - I | 0 | - | 4.42 | 121,380 |
| Geography by Letter - K | 0 | - | 4.53 | 117,509 |
| Geography by Letter - L | 0 | - | 4.43 | 147,831 |
| Geography by Letter - M | 0 | - | 4.49 | 117,828 |
| Geography by Letter - N | 0 | - | 4.51 | 126,442 |
| Geography by Letter - P | 0 | - | 4.47 | 175,366 |
| Geography by Letter - R | 0 | - | 4.44 | 130,602 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,850 |
| Geography by Letter - U | 0 | - | 4.53 | 142,305 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,017 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,497 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 32,852 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,156 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,737 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,229 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,398 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,988 |
| Movies that Start with G | 0 | - | 4.48 | 68,311 |
| Movies that Start with I | 0 | - | 4.41 | 64,957 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,539 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,416 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,032 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,878 |
| Empires by Maps | 0 | - | 4.98 | 118,927 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,355 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,869 |
| Name the War | 0 | - | 4.37 | 201,013 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,447 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,866 |
| Famous Families #1 | 0 | - | 4.20 | 83,455 |
| Names for Warriors | 0 | - | 4.40 | 36,834 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,163 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,950 |
| Countries by Military Spending | 0 | - | 4.93 | 176,695 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,625 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.91 | 119,915 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,620 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,854 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,581 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,523 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,399 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,258 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,375 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,614 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,307,688 |
| Animals that Start with L | 0 | - | 4.47 | 101,610 |
| Animals that Start with P | 0 | - | 4.45 | 85,867 |
| Animals that Start with S | 0 | - | 4.49 | 87,042 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,801 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,821 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 66,879 |
| Islands A-Z | 0 | - | 4.46 | 116,951 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 58,242 |
| Human Body A-Z | 0 | - | 4.51 | 128,746 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 34,874 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,930 |
| Africa A-Z | 0 | - | 4.57 | 46,428 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 56,315 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,096 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,230 |
| Military History A-Z | 0 | - | 4.20 | 21,074 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,039 |
| Disney A-Z | 0 | - | 4.37 | 86,695 |
| Literature by Letter - A | 0 | - | 4.23 | 31,798 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,084 |
| Companies A-Z | 0 | - | 4.30 | 42,637 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,523 |
| Geography by Letter - G | 0 | - | 4.35 | 125,660 |
| Geography by Letter - F | 0 | - | 4.27 | 137,245 |
| Geography by Letter - J | 0 | - | 4.34 | 122,338 |
| Geography by Letter - O | 0 | - | 4.37 | 129,181 |
| Geography by Letter - V | 0 | - | 4.39 | 121,102 |
| Geography by Letter - W | 0 | - | 4.39 | 114,354 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,825 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,176 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,028 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,145 |
| Geography Containing the Letter Z | 0 | - | 4.48 | 27,696 |
| Video Games A-Z | 0 | - | 4.08 | 38,766 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,117 |
| Movies that Start with A | 0 | - | 4.13 | 61,699 |
| Movies that Start with C | 0 | - | 4.30 | 61,642 |
| Movies that Start with B | 0 | - | 4.35 | 84,989 |
| Movies that Start with D | 0 | - | 4.34 | 68,278 |
| Movies that Start with E | 0 | - | 4.13 | 68,214 |
| Movies that Start with J | 0 | - | 4.18 | 75,973 |
| Movies that Start with L | 0 | - | 4.16 | 60,257 |
| Movies that Start with M | 0 | - | 4.28 | 48,100 |
| Movies that Start with N | 0 | - | 4.02 | 41,139 |
| Movies that Start with P | 0 | - | 4.25 | 54,039 |
| Movies that Start with R | 0 | - | 4.17 | 46,492 |
| Movies that Start with W | 0 | - | 4.07 | 44,164 |
| Movies that Start with T | 0 | - | 4.33 | 49,158 |
| Movies that Start with S | 0 | - | 4.35 | 56,311 |
| Movies that Start with F | 0 | - | 4.13 | 68,690 |
| Music by Letter - F | 0 | - | 4.48 | 26,872 |
| Music by Letter - A | 0 | - | 4.61 | 31,242 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,891 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,175 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,431 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,943 |
| Influential Women in History | 0 | - | 4.42 | 35,219 |
| Metals of Antiquity | 0 | - | 4.94 | 93,038 |
| Cradles of Civilization | 0 | - | 4.46 | 39,269 |
| Materials From History #1 | 0 | - | 4.56 | 51,254 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,307 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,089 |
| WWI... or WWII? | 0 | - | 4.85 | 141,009 |
| Oldest Things | 0 | - | 3.92 | 65,606 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,781 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,384 |
| Famous Explorers | 0 | - | 4.58 | 36,012 |
| Famous Empires by Description | 0 | - | 4.73 | 118,057 |
| Answers by Time Period | 0 | - | 4.63 | 55,350 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,872 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,506 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,773 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,104 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,916 |
| Middle East A-Z | 0 | - | 4.47 | 45,867 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,202 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,085 |
| Notable People of WWII | 0 | - | 4.53 | 85,396 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,554 |
| World War I Quiz | 0 | - | 4.78 | 100,410 |
| WWI A-Z | 0 | - | 4.50 | 38,075 |
| Most Important People in History | 0 | - | 3.98 | 50,475 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,265 |
| Star Wars A-Z | 0 | - | 4.46 | 87,323 |
| Monarchies of the World | 0 | - | 4.94 | 167,050 |
