| History by Letter - A | 0 | - | 4.51 | 153,852 |
| History by Letter - B | 0 | - | 4.45 | 173,233 |
| History by Letter - C | 0 | - | 4.70 | 172,585 |
| History by Letter - E | 0 | - | 4.51 | 141,450 |
| History by Letter - G | 0 | - | 4.46 | 122,863 |
| History by Letter - H | 0 | - | 4.45 | 137,528 |
| History by Letter - J | 0 | - | 4.51 | 154,955 |
| History by Letter - N | 0 | - | 4.45 | 104,776 |
| History by Letter - S | 0 | - | 4.47 | 94,946 |
| History by Letter - W | 0 | - | 4.45 | 110,186 |
| History by Letter - M | 0 | - | 4.54 | 120,657 |
| History by Letter - K | 0 | - | 4.50 | 101,969 |
| History by Letter - L | 0 | - | 4.50 | 112,784 |
| History by Letter - I | 0 | - | 4.46 | 104,995 |
| History by Letter - D | 0 | - | 4.40 | 138,548 |
| History by Letter - F | 0 | - | 4.19 | 115,063 |
| History by Letter - O | 0 | - | 4.32 | 100,261 |
| History by Letter - P | 0 | - | 4.36 | 108,446 |
| History by Letter - Q | 0 | - | 4.34 | 80,780 |
| History by Letter - R | 0 | - | 4.26 | 122,791 |
| History by Letter - T | 0 | - | 4.39 | 105,786 |
| History by Letter - U | 0 | - | 4.19 | 101,297 |
| History by Letter - V | 0 | - | 4.27 | 81,199 |
| History by Letter - Y | 0 | - | 4.27 | 87,707 |
| History by Letter - Z | 0 | - | 4.20 | 77,435 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,336 |
| History Containing the Letter X | 0 | - | 4.47 | 27,145 |
| Empires A-Z | 0 | - | 4.52 | 45,441 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,800 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,782 |
| History Ending in Z | 0 | - | 4.35 | 13,596 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,249 |
| Geography by Letter - T | 0 | - | 4.84 | 155,060 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,675 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,451 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,429 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,973 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,806 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,086 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,627 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,892 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,891 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,925 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,223 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,468 |
| 20th Century A-Z | 0 | - | 4.50 | 53,966 |
| 19th Century A-Z | 0 | - | 4.77 | 47,455 |
| 18th Century A-Z | 0 | - | 4.54 | 43,313 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,414 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,844 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,119 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,562 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,908 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,658 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,159 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,590 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,811 |
| 16th Century A-Z | 0 | - | 4.58 | 25,011 |
| 15th Century A-Z | 0 | - | 4.49 | 24,007 |
| 14th Century A-Z | 0 | - | 4.41 | 24,497 |
| 17th Century A-Z | 0 | - | 4.78 | 34,749 |
| NATO Military Alphabet | 0 | - | 4.98 | 564,053 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,120 |
| Geography by Letter - A | 0 | - | 4.74 | 212,726 |
| Geography by Letter - B | 0 | - | 4.56 | 185,705 |
| Geography by Letter - H | 0 | - | 4.69 | 151,193 |
| Geography by Letter - C | 0 | - | 4.48 | 159,638 |
| Geography by Letter - D | 0 | - | 4.50 | 151,621 |
| Geography by Letter - E | 0 | - | 4.42 | 148,454 |
| Geography by Letter - I | 0 | - | 4.42 | 122,696 |
| Geography by Letter - K | 0 | - | 4.54 | 119,028 |
| Geography by Letter - L | 0 | - | 4.44 | 149,531 |
| Geography by Letter - M | 0 | - | 4.49 | 119,530 |
| Geography by Letter - N | 0 | - | 4.51 | 127,894 |
| Geography by Letter - P | 0 | - | 4.47 | 176,837 |
| Geography by Letter - R | 0 | - | 4.43 | 132,571 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,395 |
| Geography by Letter - U | 0 | - | 4.52 | 143,884 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,341 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,762 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,556 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,134 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,504 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,811 |
| Movies that Start with G | 0 | - | 4.49 | 68,803 |
| Movies that Start with I | 0 | - | 4.41 | 65,401 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,121 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,341 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,875 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,127 |
| Name the War | 0 | - | 4.37 | 202,789 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,631 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,430 |
| Famous Families #1 | 0 | - | 4.20 | 83,727 |
| Names for Warriors | 0 | - | 4.40 | 37,052 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,410 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,178 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,807 |
| Empires by Maps | 0 | - | 4.98 | 121,961 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,786 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,840 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,943 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,113 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,603 |
| The 15th Century | 0 | - | 4.43 | 51,320 |
| The 14th Century | 0 | - | 4.55 | 49,403 |
| The 13th Century | 0 | - | 4.48 | 43,369 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,258 |
| Military History A-Z | 0 | - | 4.20 | 21,239 |
| Ye Olde Professions | 0 | - | 4.63 | 157,442 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,468 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,566 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,762 |
| Countries by Military Spending | 0 | - | 4.93 | 178,956 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,325,013 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,553 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,676 |
| Animals that Start with L | 0 | - | 4.47 | 102,417 |
| Animals that Start with P | 0 | - | 4.45 | 86,454 |
| Animals that Start with S | 0 | - | 4.49 | 87,654 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,062 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,496 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 76,736 |
| Islands A-Z | 0 | - | 4.46 | 127,391 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,223 |
| Human Body A-Z | 0 | - | 4.51 | 129,624 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,968 |
| Africa A-Z | 0 | - | 4.57 | 46,761 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,206 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,496 |
| Metals of Antiquity | 0 | - | 4.95 | 93,892 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,118 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,474 |
| WWI... or WWII? | 0 | - | 4.85 | 143,302 |
| Oldest Things | 0 | - | 3.92 | 65,709 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,858 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,941 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,232 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,606 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,450 |
| Disney A-Z | 0 | - | 4.37 | 87,474 |
| Literature by Letter - A | 0 | - | 4.24 | 32,342 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,400 |
| Companies A-Z | 0 | - | 4.30 | 42,769 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,438 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,739 |
| Geography by Letter - G | 0 | - | 4.33 | 127,010 |
| Geography by Letter - F | 0 | - | 4.28 | 138,723 |
| Geography by Letter - J | 0 | - | 4.35 | 123,607 |
| Geography by Letter - O | 0 | - | 4.37 | 130,415 |
| Geography by Letter - V | 0 | - | 4.39 | 122,518 |
| Geography by Letter - W | 0 | - | 4.39 | 115,425 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,121 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,133 |
| Geography by Letter - Q | 0 | - | 4.38 | 70,013 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,371 |
| Video Games A-Z | 0 | - | 4.05 | 39,237 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,396 |
| Middle East A-Z | 0 | - | 4.47 | 46,233 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,546 |
| Movies that Start with A | 0 | - | 4.13 | 62,125 |
| Movies that Start with C | 0 | - | 4.30 | 62,114 |
| Movies that Start with B | 0 | - | 4.36 | 85,686 |
| Movies that Start with D | 0 | - | 4.34 | 68,651 |
| Movies that Start with E | 0 | - | 4.13 | 68,585 |
| Movies that Start with J | 0 | - | 4.18 | 76,404 |
| Movies that Start with L | 0 | - | 4.16 | 60,588 |
| Movies that Start with M | 0 | - | 4.28 | 48,388 |
| Movies that Start with N | 0 | - | 4.02 | 41,385 |
| Movies that Start with P | 0 | - | 4.25 | 54,284 |
| Movies that Start with R | 0 | - | 4.17 | 46,807 |
| Movies that Start with W | 0 | - | 4.07 | 44,369 |
| Movies that Start with T | 0 | - | 4.34 | 49,452 |
| Movies that Start with S | 0 | - | 4.35 | 56,630 |
| Movies that Start with F | 0 | - | 4.13 | 69,071 |
| Music by Letter - F | 0 | - | 4.47 | 27,127 |
| Music by Letter - A | 0 | - | 4.61 | 31,524 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,614 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,158 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,097 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,870 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,483 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,254 |
| Influential Women in History | 0 | - | 4.43 | 36,444 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,364 |
| Cradles of Civilization | 0 | - | 4.46 | 40,422 |
| Materials From History #1 | 0 | - | 4.56 | 52,039 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,993 |
| Notable People of WWII | 0 | - | 4.53 | 86,307 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,548 |
| World War I Quiz | 0 | - | 4.78 | 102,031 |
| WWI A-Z | 0 | - | 4.51 | 38,591 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,593 |
| Famous Explorers | 0 | - | 4.58 | 36,364 |
| Famous Empires by Description | 0 | - | 4.73 | 118,962 |
| Answers by Time Period | 0 | - | 4.64 | 55,858 |
| History of France | 0 | - | 4.61 | 57,574 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,795 |
| Star Wars A-Z | 0 | - | 4.46 | 88,819 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,733 |
