| History by Letter - B | 0 | - | 4.45 | 173,150 |
| History by Letter - C | 0 | - | 4.70 | 172,480 |
| History by Letter - E | 0 | - | 4.51 | 141,373 |
| History by Letter - G | 0 | - | 4.46 | 122,790 |
| History by Letter - H | 0 | - | 4.45 | 137,458 |
| History by Letter - J | 0 | - | 4.51 | 154,869 |
| History by Letter - N | 0 | - | 4.45 | 104,712 |
| History by Letter - S | 0 | - | 4.47 | 94,885 |
| History by Letter - W | 0 | - | 4.45 | 110,120 |
| History by Letter - M | 0 | - | 4.54 | 120,594 |
| History by Letter - K | 0 | - | 4.50 | 101,908 |
| History by Letter - L | 0 | - | 4.50 | 112,710 |
| History by Letter - I | 0 | - | 4.46 | 104,933 |
| History by Letter - D | 0 | - | 4.40 | 138,477 |
| History by Letter - F | 0 | - | 4.18 | 115,003 |
| History by Letter - O | 0 | - | 4.32 | 100,098 |
| History by Letter - P | 0 | - | 4.36 | 108,371 |
| History by Letter - Q | 0 | - | 4.34 | 80,731 |
| History by Letter - R | 0 | - | 4.26 | 122,732 |
| History by Letter - T | 0 | - | 4.39 | 105,732 |
| History by Letter - U | 0 | - | 4.19 | 101,246 |
| History by Letter - V | 0 | - | 4.27 | 81,151 |
| History by Letter - Y | 0 | - | 4.27 | 87,662 |
| History by Letter - Z | 0 | - | 4.20 | 77,400 |
| History Containing the Letter X | 0 | - | 4.47 | 27,137 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,521 |
| Empires A-Z | 0 | - | 4.52 | 45,409 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,794 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,772 |
| History Ending in Z | 0 | - | 4.35 | 13,589 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,086 |
| Geography by Letter - T | 0 | - | 4.84 | 154,967 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,636 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,421 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,413 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,901 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,741 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,015 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,518 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,812 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,751 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,788 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,149 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,376 |
| 20th Century A-Z | 0 | - | 4.50 | 53,949 |
| 19th Century A-Z | 0 | - | 4.77 | 47,439 |
| 18th Century A-Z | 0 | - | 4.54 | 43,291 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,894 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,382 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,798 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,106 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,389 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,795 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,799 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,634 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,109 |
| 16th Century A-Z | 0 | - | 4.58 | 25,001 |
| 15th Century A-Z | 0 | - | 4.49 | 23,999 |
| 14th Century A-Z | 0 | - | 4.41 | 24,483 |
| 17th Century A-Z | 0 | - | 4.78 | 34,736 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,028 |
| NATO Military Alphabet | 0 | - | 4.98 | 563,647 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,109 |
| Geography by Letter - A | 0 | - | 4.74 | 212,637 |
| Geography by Letter - B | 0 | - | 4.56 | 185,623 |
| Geography by Letter - H | 0 | - | 4.69 | 151,127 |
| Geography by Letter - C | 0 | - | 4.48 | 159,575 |
| Geography by Letter - D | 0 | - | 4.50 | 151,556 |
| Geography by Letter - E | 0 | - | 4.42 | 148,382 |
| Geography by Letter - I | 0 | - | 4.42 | 122,638 |
| Geography by Letter - K | 0 | - | 4.54 | 118,982 |
| Geography by Letter - L | 0 | - | 4.44 | 149,467 |
| Geography by Letter - M | 0 | - | 4.49 | 119,475 |
| Geography by Letter - N | 0 | - | 4.51 | 127,844 |
| Geography by Letter - P | 0 | - | 4.47 | 176,782 |
| Geography by Letter - R | 0 | - | 4.43 | 132,508 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,330 |
| Geography by Letter - U | 0 | - | 4.52 | 143,814 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,321 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,757 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,137 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,533 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,111 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,493 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,781 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,562 |
| Movies that Start with G | 0 | - | 4.49 | 68,780 |
| Movies that Start with I | 0 | - | 4.41 | 65,386 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,574 |
| Empires by Maps | 0 | - | 4.98 | 121,629 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,062 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,110 |
| Name the War | 0 | - | 4.37 | 202,738 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,626 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,413 |
| Famous Families #1 | 0 | - | 4.20 | 83,715 |
| Names for Warriors | 0 | - | 4.40 | 37,043 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,400 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,556 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,170 |
| Countries by Military Spending | 0 | - | 4.93 | 178,871 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,522 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,606 |
| Name a Minecraft Mob A-Z | 0 | - | 4.88 | 43,408 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,735 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,792 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,934 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,290 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,846 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,460 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,556 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,757 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,324,116 |
| Animals that Start with L | 0 | - | 4.47 | 102,382 |
| Animals that Start with P | 0 | - | 4.45 | 86,429 |
| Animals that Start with S | 0 | - | 4.49 | 87,633 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,003 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,432 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 72,517 |
| Islands A-Z | 0 | - | 4.46 | 127,093 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,755 |
| Human Body A-Z | 0 | - | 4.51 | 129,578 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,917 |
| Africa A-Z | 0 | - | 4.57 | 46,751 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,179 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,475 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,464 |
| Military History A-Z | 0 | - | 4.20 | 21,232 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,222 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,523 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,095 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,047 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,790 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,417 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,160 |
| Disney A-Z | 0 | - | 4.37 | 87,437 |
| Literature by Letter - A | 0 | - | 4.24 | 32,324 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,392 |
| Companies A-Z | 0 | - | 4.30 | 42,762 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,725 |
| Geography by Letter - G | 0 | - | 4.33 | 126,956 |
| Geography by Letter - F | 0 | - | 4.28 | 138,671 |
| Geography by Letter - J | 0 | - | 4.35 | 123,552 |
| Geography by Letter - O | 0 | - | 4.37 | 130,369 |
| Geography by Letter - V | 0 | - | 4.39 | 122,458 |
| Geography by Letter - W | 0 | - | 4.39 | 115,384 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,071 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,092 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,984 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,366 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,966 |
| Video Games A-Z | 0 | - | 4.05 | 39,206 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,384 |
| Movies that Start with A | 0 | - | 4.13 | 62,107 |
| Movies that Start with C | 0 | - | 4.30 | 62,096 |
| Movies that Start with B | 0 | - | 4.36 | 85,667 |
| Movies that Start with D | 0 | - | 4.34 | 68,631 |
| Movies that Start with E | 0 | - | 4.13 | 68,571 |
| Movies that Start with J | 0 | - | 4.18 | 76,389 |
| Movies that Start with L | 0 | - | 4.16 | 60,574 |
| Movies that Start with M | 0 | - | 4.28 | 48,375 |
| Movies that Start with N | 0 | - | 4.02 | 41,371 |
| Movies that Start with P | 0 | - | 4.25 | 54,269 |
| Movies that Start with R | 0 | - | 4.17 | 46,790 |
| Movies that Start with W | 0 | - | 4.07 | 44,361 |
| Movies that Start with T | 0 | - | 4.34 | 49,437 |
| Movies that Start with S | 0 | - | 4.35 | 56,615 |
| Movies that Start with F | 0 | - | 4.13 | 69,054 |
| Music by Letter - F | 0 | - | 4.47 | 27,119 |
| Music by Letter - A | 0 | - | 4.61 | 31,509 |
| Influential Women in History | 0 | - | 4.42 | 36,259 |
| Metals of Antiquity | 0 | - | 4.95 | 93,833 |
| Cradles of Civilization | 0 | - | 4.46 | 40,195 |
| Materials From History #1 | 0 | - | 4.56 | 51,983 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,073 |
| Historical Countries by Ruler | 0 | - | 4.48 | 49,128 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,833 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,786 |
| WWI... or WWII? | 0 | - | 4.85 | 143,187 |
| Oldest Things | 0 | - | 3.92 | 65,704 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,858 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,489 |
| Famous Explorers | 0 | - | 4.58 | 36,311 |
| Famous Empires by Description | 0 | - | 4.73 | 118,890 |
| Answers by Time Period | 0 | - | 4.64 | 55,819 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,937 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,567 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,353 |
| Top Five Exporting Partners by Country | 0 | - | 4.86 | 67,399 |
| Middle East A-Z | 0 | - | 4.47 | 46,220 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,519 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,179 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,355 |
| Notable People of WWII | 0 | - | 4.53 | 86,162 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,488 |
| World War I Quiz | 0 | - | 4.78 | 101,989 |
| WWI A-Z | 0 | - | 4.51 | 38,570 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,225 |
| Most Important People in History | 0 | - | 3.98 | 50,922 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,787 |
