| History by Letter - B | 0 | - | 4.45 | 172,683 |
| History by Letter - C | 0 | - | 4.70 | 171,960 |
| History by Letter - E | 0 | - | 4.51 | 140,993 |
| History by Letter - G | 0 | - | 4.46 | 122,466 |
| History by Letter - H | 0 | - | 4.45 | 137,072 |
| History by Letter - J | 0 | - | 4.51 | 154,451 |
| History by Letter - N | 0 | - | 4.45 | 104,332 |
| History by Letter - S | 0 | - | 4.47 | 94,630 |
| History by Letter - W | 0 | - | 4.45 | 109,824 |
| History by Letter - M | 0 | - | 4.54 | 120,147 |
| History by Letter - K | 0 | - | 4.50 | 101,626 |
| History by Letter - L | 0 | - | 4.50 | 112,389 |
| History by Letter - I | 0 | - | 4.46 | 104,662 |
| History by Letter - D | 0 | - | 4.40 | 138,118 |
| History by Letter - F | 0 | - | 4.18 | 114,724 |
| History by Letter - O | 0 | - | 4.32 | 99,740 |
| History by Letter - P | 0 | - | 4.36 | 108,087 |
| History by Letter - Q | 0 | - | 4.34 | 80,513 |
| History by Letter - R | 0 | - | 4.26 | 122,452 |
| History by Letter - T | 0 | - | 4.39 | 105,505 |
| History by Letter - U | 0 | - | 4.19 | 101,019 |
| History by Letter - V | 0 | - | 4.27 | 80,948 |
| History by Letter - Y | 0 | - | 4.27 | 87,466 |
| History by Letter - Z | 0 | - | 4.20 | 77,214 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,281 |
| History Containing the Letter X | 0 | - | 4.47 | 27,074 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,472 |
| Empires A-Z | 0 | - | 4.52 | 45,255 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,755 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,709 |
| History Ending in Z | 0 | - | 4.35 | 13,550 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 153,579 |
| Geography by Letter - T | 0 | - | 4.84 | 154,287 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,142 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,185 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,237 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,430 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,197 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,728 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,972 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,483 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,691 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,218 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,694 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,065 |
| 20th Century A-Z | 0 | - | 4.50 | 53,815 |
| 19th Century A-Z | 0 | - | 4.77 | 47,345 |
| 18th Century A-Z | 0 | - | 4.54 | 43,225 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,286 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,179 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,514 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,989 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,576 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,229 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,694 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,486 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,872 |
| 16th Century A-Z | 0 | - | 4.58 | 24,935 |
| 15th Century A-Z | 0 | - | 4.49 | 23,954 |
| 14th Century A-Z | 0 | - | 4.41 | 24,418 |
| 17th Century A-Z | 0 | - | 4.78 | 34,672 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,107 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,031 |
| Geography by Letter - A | 0 | - | 4.74 | 211,998 |
| Geography by Letter - B | 0 | - | 4.56 | 184,993 |
| Geography by Letter - H | 0 | - | 4.69 | 150,635 |
| Geography by Letter - C | 0 | - | 4.47 | 159,023 |
| Geography by Letter - D | 0 | - | 4.50 | 150,838 |
| Geography by Letter - E | 0 | - | 4.42 | 147,898 |
| Geography by Letter - I | 0 | - | 4.42 | 122,252 |
| Geography by Letter - K | 0 | - | 4.53 | 118,611 |
| Geography by Letter - L | 0 | - | 4.43 | 148,799 |
| Geography by Letter - M | 0 | - | 4.49 | 118,875 |
| Geography by Letter - N | 0 | - | 4.51 | 127,440 |
| Geography by Letter - P | 0 | - | 4.47 | 176,323 |
| Geography by Letter - R | 0 | - | 4.43 | 131,988 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,861 |
| Geography by Letter - U | 0 | - | 4.53 | 143,394 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,203 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,688 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,014 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,398 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,973 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,397 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,655 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,399 |
| Movies that Start with G | 0 | - | 4.49 | 68,606 |
| Movies that Start with I | 0 | - | 4.41 | 65,224 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,575 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,033 |
| Empires by Maps | 0 | - | 4.98 | 120,834 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,834 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,022 |
| Name the War | 0 | - | 4.37 | 201,823 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,565 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,106 |
| Famous Families #1 | 0 | - | 4.20 | 83,646 |
| Names for Warriors | 0 | - | 4.40 | 36,961 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,076 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,452 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,060 |
| Countries by Military Spending | 0 | - | 4.93 | 178,286 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,217 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,054 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,430 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,496 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,819 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,096 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,735 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,397 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,497 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,708 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,318,981 |
| Animals that Start with L | 0 | - | 4.47 | 102,203 |
| Animals that Start with P | 0 | - | 4.45 | 86,230 |
| Animals that Start with S | 0 | - | 4.49 | 87,442 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,599 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 117,762 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,375 |
| Islands A-Z | 0 | - | 4.46 | 125,475 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,247 |
| Human Body A-Z | 0 | - | 4.51 | 129,323 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 41,582 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,709 |
| Africa A-Z | 0 | - | 4.57 | 46,659 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,915 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,353 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,392 |
| Military History A-Z | 0 | - | 4.20 | 21,188 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,168 |
| Disney A-Z | 0 | - | 4.37 | 87,228 |
| Literature by Letter - A | 0 | - | 4.24 | 32,195 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,324 |
| Companies A-Z | 0 | - | 4.30 | 42,721 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,659 |
| Geography by Letter - G | 0 | - | 4.33 | 126,547 |
| Geography by Letter - F | 0 | - | 4.27 | 138,105 |
| Geography by Letter - J | 0 | - | 4.34 | 123,167 |
| Geography by Letter - O | 0 | - | 4.37 | 129,992 |
| Geography by Letter - V | 0 | - | 4.39 | 122,022 |
| Geography by Letter - W | 0 | - | 4.39 | 115,051 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,762 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,809 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,675 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,300 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,896 |
| Video Games A-Z | 0 | - | 4.08 | 39,056 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,302 |
| Movies that Start with A | 0 | - | 4.13 | 61,934 |
| Movies that Start with C | 0 | - | 4.30 | 61,925 |
| Movies that Start with B | 0 | - | 4.36 | 85,295 |
| Movies that Start with D | 0 | - | 4.34 | 68,493 |
| Movies that Start with E | 0 | - | 4.13 | 68,427 |
| Movies that Start with J | 0 | - | 4.18 | 76,232 |
| Movies that Start with L | 0 | - | 4.16 | 60,472 |
| Movies that Start with M | 0 | - | 4.28 | 48,276 |
| Movies that Start with N | 0 | - | 4.02 | 41,292 |
| Movies that Start with P | 0 | - | 4.25 | 54,188 |
| Movies that Start with R | 0 | - | 4.17 | 46,689 |
| Movies that Start with W | 0 | - | 4.07 | 44,286 |
| Movies that Start with T | 0 | - | 4.34 | 49,349 |
| Movies that Start with S | 0 | - | 4.35 | 56,517 |
| Movies that Start with F | 0 | - | 4.13 | 68,919 |
| Music by Letter - F | 0 | - | 4.48 | 27,040 |
| Music by Letter - A | 0 | - | 4.61 | 31,425 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,159 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,734 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,812 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,374 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,037 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,831 |
| Influential Women in History | 0 | - | 4.42 | 35,837 |
| Metals of Antiquity | 0 | - | 4.95 | 93,563 |
| Cradles of Civilization | 0 | - | 4.46 | 39,873 |
| Materials From History #1 | 0 | - | 4.56 | 51,725 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,825 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,441 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,261 |
| WWI... or WWII? | 0 | - | 4.85 | 142,517 |
| Oldest Things | 0 | - | 3.92 | 65,669 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,830 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,116 |
| Famous Explorers | 0 | - | 4.58 | 36,219 |
| Famous Empires by Description | 0 | - | 4.73 | 118,594 |
| Answers by Time Period | 0 | - | 4.64 | 55,661 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,668 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,371 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,521 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,222 |
| Middle East A-Z | 0 | - | 4.47 | 46,118 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,410 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,283 |
| Notable People of WWII | 0 | - | 4.53 | 85,996 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,272 |
| World War I Quiz | 0 | - | 4.78 | 101,419 |
| WWI A-Z | 0 | - | 4.51 | 38,410 |
| Most Important People in History | 0 | - | 3.98 | 50,766 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,754 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 91,931 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 181,476 |
