| History by Letter - B | 0 | - | 4.45 | 171,642 |
| History by Letter - C | 0 | - | 4.70 | 170,773 |
| History by Letter - E | 0 | - | 4.51 | 140,160 |
| History by Letter - G | 0 | - | 4.46 | 121,712 |
| History by Letter - H | 0 | - | 4.45 | 136,164 |
| History by Letter - J | 0 | - | 4.51 | 153,574 |
| History by Letter - N | 0 | - | 4.45 | 103,606 |
| History by Letter - S | 0 | - | 4.47 | 93,861 |
| History by Letter - W | 0 | - | 4.45 | 108,983 |
| History by Letter - M | 0 | - | 4.54 | 119,346 |
| History by Letter - K | 0 | - | 4.50 | 101,034 |
| History by Letter - L | 0 | - | 4.50 | 111,743 |
| History by Letter - I | 0 | - | 4.46 | 103,897 |
| History by Letter - D | 0 | - | 4.39 | 137,162 |
| History by Letter - F | 0 | - | 4.18 | 113,907 |
| History by Letter - O | 0 | - | 4.32 | 99,235 |
| History by Letter - P | 0 | - | 4.39 | 107,536 |
| History by Letter - Q | 0 | - | 4.34 | 80,124 |
| History by Letter - R | 0 | - | 4.26 | 121,870 |
| History by Letter - T | 0 | - | 4.39 | 105,028 |
| History by Letter - U | 0 | - | 4.19 | 100,547 |
| History by Letter - V | 0 | - | 4.27 | 80,538 |
| History by Letter - Y | 0 | - | 4.27 | 87,075 |
| History by Letter - Z | 0 | - | 4.18 | 76,862 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,173 |
| History Containing the Letter X | 0 | - | 4.47 | 26,978 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,384 |
| Empires A-Z | 0 | - | 4.51 | 44,979 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,699 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,599 |
| History Ending in Z | 0 | - | 4.35 | 13,489 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,315 |
| Geography by Letter - T | 0 | - | 4.84 | 152,992 |
| People in History A-Z #1 | 0 | - | 4.61 | 98,802 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,937 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,053 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,609 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,297 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,984 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,411 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,673 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,289 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,857 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,684 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,399 |
| 20th Century A-Z | 0 | - | 4.50 | 53,279 |
| 19th Century A-Z | 0 | - | 4.77 | 46,828 |
| 18th Century A-Z | 0 | - | 4.54 | 42,713 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,341 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,786 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,140 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,862 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,655 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,267 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,486 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,246 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,431 |
| 16th Century A-Z | 0 | - | 4.58 | 24,440 |
| 15th Century A-Z | 0 | - | 4.49 | 23,434 |
| 14th Century A-Z | 0 | - | 4.41 | 23,864 |
| 17th Century A-Z | 0 | - | 4.78 | 34,231 |
| NATO Military Alphabet | 0 | - | 4.98 | 556,469 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 799,484 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,909 |
| Geography by Letter - A | 0 | - | 4.74 | 210,852 |
| Geography by Letter - B | 0 | - | 4.56 | 183,808 |
| Geography by Letter - H | 0 | - | 4.69 | 149,667 |
| Geography by Letter - C | 0 | - | 4.47 | 158,021 |
| Geography by Letter - D | 0 | - | 4.50 | 149,915 |
| Geography by Letter - E | 0 | - | 4.42 | 147,034 |
| Geography by Letter - I | 0 | - | 4.42 | 121,523 |
| Geography by Letter - K | 0 | - | 4.53 | 117,648 |
| Geography by Letter - L | 0 | - | 4.43 | 147,997 |
| Geography by Letter - M | 0 | - | 4.49 | 118,170 |
| Geography by Letter - N | 0 | - | 4.51 | 126,597 |
| Geography by Letter - P | 0 | - | 4.47 | 175,518 |
| Geography by Letter - R | 0 | - | 4.44 | 130,784 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,007 |
| Geography by Letter - U | 0 | - | 4.53 | 142,487 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,041 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,518 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 32,881 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,191 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,774 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,251 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,439 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,034 |
| Movies that Start with G | 0 | - | 4.49 | 68,382 |
| Movies that Start with I | 0 | - | 4.41 | 65,034 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,717 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,179 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,090 |
| Empires by Maps | 0 | - | 4.98 | 119,242 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,432 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,910 |
| Name the War | 0 | - | 4.37 | 201,178 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,466 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,943 |
| Famous Families #1 | 0 | - | 4.20 | 83,488 |
| Names for Warriors | 0 | - | 4.40 | 36,855 |
| Famous Firsts #2 | 0 | - | 4.01 | 80,929 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,219 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,969 |
| Countries by Military Spending | 0 | - | 4.93 | 176,920 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,711 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,069 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,719 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,963 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,619 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,653 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,476 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,286 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,402 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,634 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,309,717 |
| Animals that Start with L | 0 | - | 4.47 | 101,672 |
| Animals that Start with P | 0 | - | 4.45 | 85,924 |
| Animals that Start with S | 0 | - | 4.49 | 87,109 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,922 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,960 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,237 |
| Islands A-Z | 0 | - | 4.46 | 117,100 |
| Human Body A-Z | 0 | - | 4.51 | 128,848 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,110 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,008 |
| Africa A-Z | 0 | - | 4.57 | 46,486 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,150 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,140 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,253 |
| Military History A-Z | 0 | - | 4.20 | 21,091 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,065 |
| Disney A-Z | 0 | - | 4.37 | 86,792 |
| Literature by Letter - A | 0 | - | 4.23 | 31,823 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,098 |
| Companies A-Z | 0 | - | 4.30 | 42,647 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,545 |
| Geography by Letter - G | 0 | - | 4.35 | 125,796 |
| Geography by Letter - F | 0 | - | 4.27 | 137,379 |
| Geography by Letter - J | 0 | - | 4.34 | 122,461 |
| Geography by Letter - O | 0 | - | 4.37 | 129,308 |
| Geography by Letter - V | 0 | - | 4.39 | 121,271 |
| Geography by Letter - W | 0 | - | 4.39 | 114,476 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,954 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,290 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,126 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,166 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,719 |
| Video Games A-Z | 0 | - | 4.08 | 38,819 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,143 |
| Movies that Start with A | 0 | - | 4.13 | 61,752 |
| Movies that Start with C | 0 | - | 4.30 | 61,696 |
| Movies that Start with B | 0 | - | 4.36 | 85,053 |
| Movies that Start with D | 0 | - | 4.34 | 68,326 |
| Movies that Start with E | 0 | - | 4.13 | 68,258 |
| Movies that Start with J | 0 | - | 4.18 | 76,026 |
| Movies that Start with L | 0 | - | 4.16 | 60,305 |
| Movies that Start with M | 0 | - | 4.28 | 48,143 |
| Movies that Start with N | 0 | - | 4.02 | 41,181 |
| Movies that Start with P | 0 | - | 4.25 | 54,075 |
| Movies that Start with R | 0 | - | 4.17 | 46,543 |
| Movies that Start with W | 0 | - | 4.07 | 44,194 |
| Movies that Start with T | 0 | - | 4.34 | 49,204 |
| Movies that Start with S | 0 | - | 4.35 | 56,365 |
| Movies that Start with F | 0 | - | 4.13 | 68,744 |
| Music by Letter - F | 0 | - | 4.48 | 26,913 |
| Music by Letter - A | 0 | - | 4.61 | 31,278 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,565 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,070 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,283 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,603 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,103 |
| Influential Women in History | 0 | - | 4.42 | 35,279 |
| Metals of Antiquity | 0 | - | 4.94 | 93,108 |
| Cradles of Civilization | 0 | - | 4.46 | 39,351 |
| Materials From History #1 | 0 | - | 4.56 | 51,318 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,400 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,718 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,600 |
| WWI... or WWII? | 0 | - | 4.85 | 141,325 |
| Oldest Things | 0 | - | 3.92 | 65,627 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,788 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,495 |
| Famous Explorers | 0 | - | 4.58 | 36,044 |
| Famous Empires by Description | 0 | - | 4.73 | 118,145 |
| Answers by Time Period | 0 | - | 4.64 | 55,407 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,581 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,988 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,349 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,970 |
| Middle East A-Z | 0 | - | 4.47 | 45,907 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,230 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,117 |
| Notable People of WWII | 0 | - | 4.53 | 85,461 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,686 |
| World War I Quiz | 0 | - | 4.78 | 100,526 |
| WWI A-Z | 0 | - | 4.50 | 38,138 |
| Most Important People in History | 0 | - | 3.98 | 50,527 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 88,480 |
| Star Wars A-Z | 0 | - | 4.46 | 87,604 |
| Monarchies of the World | 0 | - | 4.94 | 167,330 |
