| History by Letter - B | 0 | - | 4.45 | 172,895 |
| History by Letter - C | 0 | - | 4.70 | 172,208 |
| History by Letter - E | 0 | - | 4.51 | 141,171 |
| History by Letter - G | 0 | - | 4.46 | 122,609 |
| History by Letter - H | 0 | - | 4.45 | 137,260 |
| History by Letter - J | 0 | - | 4.51 | 154,625 |
| History by Letter - N | 0 | - | 4.45 | 104,455 |
| History by Letter - S | 0 | - | 4.47 | 94,751 |
| History by Letter - W | 0 | - | 4.45 | 109,969 |
| History by Letter - M | 0 | - | 4.54 | 120,272 |
| History by Letter - K | 0 | - | 4.50 | 101,747 |
| History by Letter - L | 0 | - | 4.50 | 112,525 |
| History by Letter - I | 0 | - | 4.46 | 104,780 |
| History by Letter - D | 0 | - | 4.40 | 138,290 |
| History by Letter - F | 0 | - | 4.18 | 114,847 |
| History by Letter - O | 0 | - | 4.32 | 99,849 |
| History by Letter - P | 0 | - | 4.36 | 108,213 |
| History by Letter - Q | 0 | - | 4.34 | 80,602 |
| History by Letter - R | 0 | - | 4.26 | 122,571 |
| History by Letter - T | 0 | - | 4.39 | 105,604 |
| History by Letter - U | 0 | - | 4.19 | 101,123 |
| History by Letter - V | 0 | - | 4.27 | 81,046 |
| History by Letter - Y | 0 | - | 4.27 | 87,561 |
| History by Letter - Z | 0 | - | 4.20 | 77,298 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,302 |
| History Containing the Letter X | 0 | - | 4.47 | 27,109 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,498 |
| Empires A-Z | 0 | - | 4.52 | 45,337 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,777 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,743 |
| History Ending in Z | 0 | - | 4.35 | 13,568 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,592 |
| Geography by Letter - T | 0 | - | 4.84 | 154,669 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,494 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,345 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,348 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,703 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,522 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,882 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,264 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,647 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,027 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,500 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,924 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,232 |
| 20th Century A-Z | 0 | - | 4.50 | 53,884 |
| 19th Century A-Z | 0 | - | 4.77 | 47,401 |
| 18th Century A-Z | 0 | - | 4.54 | 43,256 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,712 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,288 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,671 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,064 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,018 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,509 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,756 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,555 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,998 |
| 16th Century A-Z | 0 | - | 4.58 | 24,966 |
| 15th Century A-Z | 0 | - | 4.49 | 23,979 |
| 14th Century A-Z | 0 | - | 4.41 | 24,452 |
| 17th Century A-Z | 0 | - | 4.78 | 34,706 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,819 |
| NATO Military Alphabet | 0 | - | 4.98 | 562,522 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,070 |
| Geography by Letter - A | 0 | - | 4.74 | 212,358 |
| Geography by Letter - B | 0 | - | 4.56 | 185,366 |
| Geography by Letter - H | 0 | - | 4.69 | 150,932 |
| Geography by Letter - C | 0 | - | 4.48 | 159,351 |
| Geography by Letter - D | 0 | - | 4.50 | 151,348 |
| Geography by Letter - E | 0 | - | 4.42 | 148,183 |
| Geography by Letter - I | 0 | - | 4.42 | 122,473 |
| Geography by Letter - K | 0 | - | 4.54 | 118,833 |
| Geography by Letter - L | 0 | - | 4.44 | 149,276 |
| Geography by Letter - M | 0 | - | 4.49 | 119,116 |
| Geography by Letter - N | 0 | - | 4.51 | 127,680 |
| Geography by Letter - P | 0 | - | 4.47 | 176,587 |
| Geography by Letter - R | 0 | - | 4.43 | 132,277 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,115 |
| Geography by Letter - U | 0 | - | 4.53 | 143,620 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,263 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,731 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,097 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,464 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,046 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,453 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,714 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,497 |
| Movies that Start with G | 0 | - | 4.49 | 68,726 |
| Movies that Start with I | 0 | - | 4.41 | 65,323 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,339 |
| Empires by Maps | 0 | - | 4.98 | 121,259 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,959 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,067 |
| Name the War | 0 | - | 4.37 | 202,532 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,602 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,372 |
| Famous Families #1 | 0 | - | 4.20 | 83,683 |
| Names for Warriors | 0 | - | 4.40 | 37,013 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,361 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,507 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,139 |
| Countries by Military Spending | 0 | - | 4.93 | 178,644 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,415 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,353 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,599 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,659 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,882 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,195 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,794 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,430 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,522 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,734 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,321,832 |
| Animals that Start with L | 0 | - | 4.47 | 102,312 |
| Animals that Start with P | 0 | - | 4.45 | 86,362 |
| Animals that Start with S | 0 | - | 4.49 | 87,560 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,838 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,237 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,535 |
| Islands A-Z | 0 | - | 4.46 | 126,404 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,385 |
| Human Body A-Z | 0 | - | 4.51 | 129,476 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,759 |
| Africa A-Z | 0 | - | 4.57 | 46,723 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,073 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,421 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,430 |
| Military History A-Z | 0 | - | 4.20 | 21,212 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,197 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,383 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,919 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,938 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,606 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,229 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,012 |
| Disney A-Z | 0 | - | 4.37 | 87,354 |
| Literature by Letter - A | 0 | - | 4.24 | 32,275 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,365 |
| Companies A-Z | 0 | - | 4.30 | 42,742 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,696 |
| Geography by Letter - G | 0 | - | 4.33 | 126,791 |
| Geography by Letter - F | 0 | - | 4.28 | 138,510 |
| Geography by Letter - J | 0 | - | 4.35 | 123,386 |
| Geography by Letter - O | 0 | - | 4.37 | 130,218 |
| Geography by Letter - V | 0 | - | 4.39 | 122,266 |
| Geography by Letter - W | 0 | - | 4.39 | 115,241 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,937 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,974 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,858 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,335 |
| Video Games A-Z | 0 | - | 4.05 | 39,147 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,344 |
| Movies that Start with A | 0 | - | 4.13 | 62,055 |
| Movies that Start with C | 0 | - | 4.30 | 62,046 |
| Movies that Start with B | 0 | - | 4.36 | 85,605 |
| Movies that Start with D | 0 | - | 4.34 | 68,593 |
| Movies that Start with E | 0 | - | 4.13 | 68,529 |
| Movies that Start with J | 0 | - | 4.18 | 76,338 |
| Movies that Start with L | 0 | - | 4.16 | 60,541 |
| Movies that Start with M | 0 | - | 4.28 | 48,345 |
| Movies that Start with N | 0 | - | 4.02 | 41,343 |
| Movies that Start with P | 0 | - | 4.25 | 54,243 |
| Movies that Start with R | 0 | - | 4.17 | 46,753 |
| Movies that Start with W | 0 | - | 4.07 | 44,337 |
| Movies that Start with T | 0 | - | 4.34 | 49,409 |
| Movies that Start with S | 0 | - | 4.35 | 56,583 |
| Movies that Start with F | 0 | - | 4.13 | 69,013 |
| Music by Letter - F | 0 | - | 4.48 | 27,080 |
| Music by Letter - A | 0 | - | 4.61 | 31,475 |
| Influential Women in History | 0 | - | 4.42 | 36,180 |
| Metals of Antiquity | 0 | - | 4.95 | 93,705 |
| Cradles of Civilization | 0 | - | 4.46 | 40,135 |
| Materials From History #1 | 0 | - | 4.56 | 51,914 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,950 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,172 |
| WWI... or WWII? | 0 | - | 4.85 | 142,874 |
| Oldest Things | 0 | - | 3.92 | 65,688 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,841 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,327 |
| Famous Explorers | 0 | - | 4.58 | 36,278 |
| Famous Empires by Description | 0 | - | 4.73 | 118,789 |
| Answers by Time Period | 0 | - | 4.64 | 55,759 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,908 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,482 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,978 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,320 |
| Middle East A-Z | 0 | - | 4.47 | 46,191 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,468 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,321 |
| Notable People of WWII | 0 | - | 4.53 | 86,073 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,382 |
| World War I Quiz | 0 | - | 4.78 | 101,545 |
| WWI A-Z | 0 | - | 4.51 | 38,493 |
| Most Important People in History | 0 | - | 3.98 | 50,862 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,768 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,480 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,574 |
| Star Wars A-Z | 0 | - | 4.46 | 88,567 |
| Monarchies of the World | 0 | - | 4.94 | 169,594 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,513 |
