| History by Letter - B | 0 | - | 4.45 | 172,795 |
| History by Letter - C | 0 | - | 4.70 | 172,087 |
| History by Letter - E | 0 | - | 4.51 | 141,086 |
| History by Letter - G | 0 | - | 4.46 | 122,534 |
| History by Letter - H | 0 | - | 4.45 | 137,176 |
| History by Letter - J | 0 | - | 4.51 | 154,551 |
| History by Letter - N | 0 | - | 4.45 | 104,407 |
| History by Letter - S | 0 | - | 4.47 | 94,708 |
| History by Letter - W | 0 | - | 4.45 | 109,912 |
| History by Letter - M | 0 | - | 4.54 | 120,218 |
| History by Letter - K | 0 | - | 4.50 | 101,697 |
| History by Letter - L | 0 | - | 4.50 | 112,472 |
| History by Letter - I | 0 | - | 4.46 | 104,739 |
| History by Letter - D | 0 | - | 4.40 | 138,211 |
| History by Letter - F | 0 | - | 4.18 | 114,796 |
| History by Letter - O | 0 | - | 4.32 | 99,804 |
| History by Letter - P | 0 | - | 4.36 | 108,168 |
| History by Letter - Q | 0 | - | 4.34 | 80,568 |
| History by Letter - R | 0 | - | 4.26 | 122,518 |
| History by Letter - T | 0 | - | 4.39 | 105,562 |
| History by Letter - U | 0 | - | 4.19 | 101,079 |
| History by Letter - V | 0 | - | 4.27 | 81,013 |
| History by Letter - Y | 0 | - | 4.27 | 87,530 |
| History by Letter - Z | 0 | - | 4.20 | 77,270 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,295 |
| History Containing the Letter X | 0 | - | 4.47 | 27,101 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,493 |
| Empires A-Z | 0 | - | 4.52 | 45,301 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,770 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,727 |
| History Ending in Z | 0 | - | 4.35 | 13,559 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,287 |
| Geography by Letter - T | 0 | - | 4.84 | 154,504 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,221 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,237 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,276 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,610 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,418 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,828 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,144 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,593 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,877 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,402 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,816 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,167 |
| 20th Century A-Z | 0 | - | 4.50 | 53,851 |
| 19th Century A-Z | 0 | - | 4.77 | 47,377 |
| 18th Century A-Z | 0 | - | 4.54 | 43,245 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,605 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,242 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,605 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,016 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,832 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,388 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,733 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,524 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,946 |
| 16th Century A-Z | 0 | - | 4.58 | 24,954 |
| 15th Century A-Z | 0 | - | 4.49 | 23,968 |
| 14th Century A-Z | 0 | - | 4.41 | 24,441 |
| 17th Century A-Z | 0 | - | 4.78 | 34,692 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,715 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,927 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,055 |
| Geography by Letter - A | 0 | - | 4.74 | 212,207 |
| Geography by Letter - B | 0 | - | 4.56 | 185,214 |
| Geography by Letter - H | 0 | - | 4.69 | 150,790 |
| Geography by Letter - C | 0 | - | 4.47 | 159,214 |
| Geography by Letter - D | 0 | - | 4.50 | 151,233 |
| Geography by Letter - E | 0 | - | 4.42 | 148,071 |
| Geography by Letter - I | 0 | - | 4.42 | 122,371 |
| Geography by Letter - K | 0 | - | 4.53 | 118,735 |
| Geography by Letter - L | 0 | - | 4.43 | 148,999 |
| Geography by Letter - M | 0 | - | 4.49 | 119,026 |
| Geography by Letter - N | 0 | - | 4.51 | 127,565 |
| Geography by Letter - P | 0 | - | 4.47 | 176,470 |
| Geography by Letter - R | 0 | - | 4.43 | 132,155 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,003 |
| Geography by Letter - U | 0 | - | 4.53 | 143,530 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,246 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,714 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,058 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,432 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,010 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,429 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,688 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,466 |
| Movies that Start with G | 0 | - | 4.49 | 68,662 |
| Movies that Start with I | 0 | - | 4.41 | 65,267 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,202 |
| Empires by Maps | 0 | - | 4.98 | 121,073 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,915 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,050 |
| Name the War | 0 | - | 4.37 | 202,438 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,583 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,318 |
| Famous Families #1 | 0 | - | 4.20 | 83,667 |
| Names for Warriors | 0 | - | 4.40 | 36,991 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,302 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,484 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,089 |
| Countries by Military Spending | 0 | - | 4.93 | 178,493 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,338 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,251 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,529 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,597 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,860 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,151 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,769 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,414 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,512 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,723 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,320,633 |
| Animals that Start with L | 0 | - | 4.47 | 102,282 |
| Animals that Start with P | 0 | - | 4.45 | 86,332 |
| Animals that Start with S | 0 | - | 4.49 | 87,534 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,755 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,148 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,472 |
| Islands A-Z | 0 | - | 4.46 | 126,002 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,335 |
| Human Body A-Z | 0 | - | 4.51 | 129,415 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,568 |
| Africa A-Z | 0 | - | 4.57 | 46,697 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,014 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,389 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,419 |
| Military History A-Z | 0 | - | 4.20 | 21,199 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,178 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,294 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,839 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,883 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,492 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,158 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,937 |
| Disney A-Z | 0 | - | 4.37 | 87,306 |
| Literature by Letter - A | 0 | - | 4.24 | 32,247 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,351 |
| Companies A-Z | 0 | - | 4.30 | 42,730 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,685 |
| Geography by Letter - G | 0 | - | 4.33 | 126,682 |
| Geography by Letter - F | 0 | - | 4.27 | 138,292 |
| Geography by Letter - J | 0 | - | 4.34 | 123,290 |
| Geography by Letter - O | 0 | - | 4.37 | 130,115 |
| Geography by Letter - V | 0 | - | 4.39 | 122,167 |
| Geography by Letter - W | 0 | - | 4.39 | 115,160 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,865 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,912 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,776 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,318 |
| Video Games A-Z | 0 | - | 4.05 | 39,117 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,324 |
| Movies that Start with A | 0 | - | 4.13 | 61,977 |
| Movies that Start with C | 0 | - | 4.30 | 61,971 |
| Movies that Start with B | 0 | - | 4.36 | 85,406 |
| Movies that Start with D | 0 | - | 4.34 | 68,532 |
| Movies that Start with E | 0 | - | 4.13 | 68,468 |
| Movies that Start with J | 0 | - | 4.18 | 76,275 |
| Movies that Start with L | 0 | - | 4.16 | 60,500 |
| Movies that Start with M | 0 | - | 4.28 | 48,308 |
| Movies that Start with N | 0 | - | 4.02 | 41,316 |
| Movies that Start with P | 0 | - | 4.25 | 54,211 |
| Movies that Start with R | 0 | - | 4.17 | 46,719 |
| Movies that Start with W | 0 | - | 4.07 | 44,311 |
| Movies that Start with T | 0 | - | 4.34 | 49,381 |
| Movies that Start with S | 0 | - | 4.35 | 56,552 |
| Movies that Start with F | 0 | - | 4.13 | 68,959 |
| Music by Letter - F | 0 | - | 4.48 | 27,059 |
| Music by Letter - A | 0 | - | 4.61 | 31,451 |
| Influential Women in History | 0 | - | 4.42 | 36,134 |
| Metals of Antiquity | 0 | - | 4.95 | 93,653 |
| Cradles of Civilization | 0 | - | 4.46 | 40,102 |
| Materials From History #1 | 0 | - | 4.56 | 51,878 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,897 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,801 |
| WWI... or WWII? | 0 | - | 4.85 | 142,716 |
| Oldest Things | 0 | - | 3.92 | 65,680 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,837 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,263 |
| Famous Explorers | 0 | - | 4.58 | 36,268 |
| Famous Empires by Description | 0 | - | 4.73 | 118,718 |
| Answers by Time Period | 0 | - | 4.64 | 55,726 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,859 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,433 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,775 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,270 |
| Middle East A-Z | 0 | - | 4.47 | 46,164 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,444 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,305 |
| Notable People of WWII | 0 | - | 4.53 | 86,051 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,336 |
| World War I Quiz | 0 | - | 4.78 | 101,487 |
| WWI A-Z | 0 | - | 4.51 | 38,460 |
| Most Important People in History | 0 | - | 3.98 | 50,826 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,759 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,247 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,105 |
| Star Wars A-Z | 0 | - | 4.46 | 88,486 |
| Monarchies of the World | 0 | - | 4.94 | 169,399 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,382 |
