| History by Letter - B | 0 | - | 4.45 | 172,737 |
| History by Letter - C | 0 | - | 4.70 | 172,023 |
| History by Letter - E | 0 | - | 4.51 | 141,033 |
| History by Letter - G | 0 | - | 4.46 | 122,490 |
| History by Letter - H | 0 | - | 4.45 | 137,118 |
| History by Letter - J | 0 | - | 4.51 | 154,491 |
| History by Letter - N | 0 | - | 4.45 | 104,369 |
| History by Letter - S | 0 | - | 4.47 | 94,662 |
| History by Letter - W | 0 | - | 4.45 | 109,850 |
| History by Letter - M | 0 | - | 4.54 | 120,176 |
| History by Letter - K | 0 | - | 4.50 | 101,661 |
| History by Letter - L | 0 | - | 4.50 | 112,424 |
| History by Letter - I | 0 | - | 4.46 | 104,703 |
| History by Letter - D | 0 | - | 4.40 | 138,154 |
| History by Letter - F | 0 | - | 4.18 | 114,752 |
| History by Letter - O | 0 | - | 4.32 | 99,767 |
| History by Letter - P | 0 | - | 4.36 | 108,116 |
| History by Letter - Q | 0 | - | 4.34 | 80,533 |
| History by Letter - R | 0 | - | 4.26 | 122,475 |
| History by Letter - T | 0 | - | 4.39 | 105,527 |
| History by Letter - U | 0 | - | 4.19 | 101,039 |
| History by Letter - V | 0 | - | 4.27 | 80,975 |
| History by Letter - Y | 0 | - | 4.27 | 87,489 |
| History by Letter - Z | 0 | - | 4.20 | 77,239 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,285 |
| History Containing the Letter X | 0 | - | 4.47 | 27,082 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,477 |
| Empires A-Z | 0 | - | 4.52 | 45,271 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,759 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,716 |
| History Ending in Z | 0 | - | 4.35 | 13,552 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 153,918 |
| Geography by Letter - T | 0 | - | 4.84 | 154,375 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,173 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,211 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,257 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,496 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,290 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,763 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,034 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,523 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,755 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,289 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,749 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,112 |
| 20th Century A-Z | 0 | - | 4.50 | 53,828 |
| 19th Century A-Z | 0 | - | 4.77 | 47,363 |
| 18th Century A-Z | 0 | - | 4.54 | 43,233 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,475 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,202 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,549 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,003 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,669 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,286 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,706 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,499 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,903 |
| 16th Century A-Z | 0 | - | 4.58 | 24,941 |
| 15th Century A-Z | 0 | - | 4.49 | 23,959 |
| 14th Century A-Z | 0 | - | 4.41 | 24,422 |
| 17th Century A-Z | 0 | - | 4.78 | 34,681 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,394 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,040 |
| Geography by Letter - A | 0 | - | 4.74 | 212,067 |
| Geography by Letter - B | 0 | - | 4.56 | 185,064 |
| Geography by Letter - H | 0 | - | 4.69 | 150,690 |
| Geography by Letter - C | 0 | - | 4.47 | 159,099 |
| Geography by Letter - D | 0 | - | 4.50 | 150,985 |
| Geography by Letter - E | 0 | - | 4.42 | 147,959 |
| Geography by Letter - I | 0 | - | 4.42 | 122,295 |
| Geography by Letter - K | 0 | - | 4.53 | 118,659 |
| Geography by Letter - L | 0 | - | 4.43 | 148,851 |
| Geography by Letter - M | 0 | - | 4.49 | 118,929 |
| Geography by Letter - N | 0 | - | 4.51 | 127,482 |
| Geography by Letter - P | 0 | - | 4.47 | 176,381 |
| Geography by Letter - R | 0 | - | 4.43 | 132,063 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,922 |
| Geography by Letter - U | 0 | - | 4.53 | 143,449 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,221 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,694 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,030 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,408 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,988 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,413 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,670 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,424 |
| Movies that Start with G | 0 | - | 4.49 | 68,623 |
| Movies that Start with I | 0 | - | 4.41 | 65,235 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,639 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,106 |
| Empires by Maps | 0 | - | 4.98 | 120,943 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,868 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,034 |
| Name the War | 0 | - | 4.37 | 202,077 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,570 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,117 |
| Famous Families #1 | 0 | - | 4.20 | 83,652 |
| Names for Warriors | 0 | - | 4.40 | 36,975 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,086 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,468 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,071 |
| Countries by Military Spending | 0 | - | 4.93 | 178,355 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,240 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,151 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,469 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,533 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,832 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,121 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,744 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,407 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,504 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,714 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,319,589 |
| Animals that Start with L | 0 | - | 4.47 | 102,248 |
| Animals that Start with P | 0 | - | 4.45 | 86,300 |
| Animals that Start with S | 0 | - | 4.49 | 87,504 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,664 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 117,899 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,422 |
| Islands A-Z | 0 | - | 4.46 | 125,678 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,286 |
| Human Body A-Z | 0 | - | 4.51 | 129,367 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,172 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,738 |
| Africa A-Z | 0 | - | 4.57 | 46,676 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 57,947 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,359 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,399 |
| Military History A-Z | 0 | - | 4.20 | 21,191 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,171 |
| Disney A-Z | 0 | - | 4.37 | 87,256 |
| Literature by Letter - A | 0 | - | 4.24 | 32,218 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,330 |
| Companies A-Z | 0 | - | 4.30 | 42,723 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,668 |
| Geography by Letter - G | 0 | - | 4.33 | 126,595 |
| Geography by Letter - F | 0 | - | 4.27 | 138,154 |
| Geography by Letter - J | 0 | - | 4.34 | 123,215 |
| Geography by Letter - O | 0 | - | 4.37 | 130,037 |
| Geography by Letter - V | 0 | - | 4.39 | 122,077 |
| Geography by Letter - W | 0 | - | 4.39 | 115,097 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,801 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,848 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,713 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,306 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,902 |
| Video Games A-Z | 0 | - | 4.08 | 39,083 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,315 |
| Movies that Start with A | 0 | - | 4.13 | 61,944 |
| Movies that Start with C | 0 | - | 4.30 | 61,934 |
| Movies that Start with B | 0 | - | 4.36 | 85,314 |
| Movies that Start with D | 0 | - | 4.34 | 68,506 |
| Movies that Start with E | 0 | - | 4.13 | 68,437 |
| Movies that Start with J | 0 | - | 4.18 | 76,248 |
| Movies that Start with L | 0 | - | 4.16 | 60,480 |
| Movies that Start with M | 0 | - | 4.28 | 48,287 |
| Movies that Start with N | 0 | - | 4.02 | 41,300 |
| Movies that Start with P | 0 | - | 4.25 | 54,195 |
| Movies that Start with R | 0 | - | 4.17 | 46,694 |
| Movies that Start with W | 0 | - | 4.07 | 44,291 |
| Movies that Start with T | 0 | - | 4.34 | 49,358 |
| Movies that Start with S | 0 | - | 4.35 | 56,530 |
| Movies that Start with F | 0 | - | 4.13 | 68,928 |
| Music by Letter - F | 0 | - | 4.48 | 27,049 |
| Music by Letter - A | 0 | - | 4.61 | 31,434 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,217 |
| Brand Logos That Start With D | 0 | - | 4.35 | 61,787 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,842 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,420 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,084 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,869 |
| Influential Women in History | 0 | - | 4.42 | 36,032 |
| Metals of Antiquity | 0 | - | 4.95 | 93,603 |
| Cradles of Civilization | 0 | - | 4.46 | 40,014 |
| Materials From History #1 | 0 | - | 4.56 | 51,826 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,861 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,492 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,508 |
| WWI... or WWII? | 0 | - | 4.85 | 142,595 |
| Oldest Things | 0 | - | 3.92 | 65,672 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,833 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,188 |
| Famous Explorers | 0 | - | 4.58 | 36,245 |
| Famous Empires by Description | 0 | - | 4.73 | 118,659 |
| Answers by Time Period | 0 | - | 4.64 | 55,692 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,670 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,396 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,613 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,241 |
| Middle East A-Z | 0 | - | 4.47 | 46,141 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,423 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,290 |
| Notable People of WWII | 0 | - | 4.53 | 86,018 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,301 |
| World War I Quiz | 0 | - | 4.78 | 101,441 |
| WWI A-Z | 0 | - | 4.51 | 38,428 |
| Most Important People in History | 0 | - | 3.98 | 50,794 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,755 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,044 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 181,756 |
