| History by Letter - B | 0 | - | 4.45 | 171,750 |
| History by Letter - C | 0 | - | 4.70 | 170,879 |
| History by Letter - G | 0 | - | 4.46 | 121,790 |
| History by Letter - H | 0 | - | 4.45 | 136,255 |
| History by Letter - J | 0 | - | 4.51 | 153,691 |
| History by Letter - N | 0 | - | 4.45 | 103,684 |
| History by Letter - S | 0 | - | 4.47 | 93,937 |
| History by Letter - W | 0 | - | 4.45 | 109,061 |
| History by Letter - M | 0 | - | 4.54 | 119,560 |
| History by Letter - K | 0 | - | 4.50 | 101,106 |
| History by Letter - L | 0 | - | 4.50 | 111,825 |
| History by Letter - I | 0 | - | 4.46 | 103,978 |
| History by Letter - D | 0 | - | 4.39 | 137,247 |
| History by Letter - F | 0 | - | 4.18 | 113,978 |
| History by Letter - O | 0 | - | 4.32 | 99,299 |
| History by Letter - P | 0 | - | 4.39 | 107,611 |
| History by Letter - Q | 0 | - | 4.34 | 80,168 |
| History by Letter - R | 0 | - | 4.26 | 121,953 |
| History by Letter - T | 0 | - | 4.39 | 105,088 |
| History by Letter - U | 0 | - | 4.19 | 100,609 |
| History by Letter - V | 0 | - | 4.27 | 80,603 |
| History by Letter - Y | 0 | - | 4.27 | 87,120 |
| History by Letter - Z | 0 | - | 4.18 | 76,899 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,189 |
| History Containing the Letter X | 0 | - | 4.47 | 26,989 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,395 |
| Empires A-Z | 0 | - | 4.51 | 45,009 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,707 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,613 |
| History Ending in Z | 0 | - | 4.35 | 13,497 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,600 |
| Geography by Letter - T | 0 | - | 4.84 | 153,259 |
| People in History A-Z #1 | 0 | - | 4.61 | 98,835 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,967 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,071 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,799 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,494 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,056 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,550 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,730 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,421 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,986 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,778 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,483 |
| 20th Century A-Z | 0 | - | 4.50 | 53,305 |
| 19th Century A-Z | 0 | - | 4.77 | 46,846 |
| 18th Century A-Z | 0 | - | 4.54 | 42,729 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,480 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,840 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,202 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,879 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,868 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,402 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,517 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,286 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,517 |
| 16th Century A-Z | 0 | - | 4.58 | 24,451 |
| 15th Century A-Z | 0 | - | 4.49 | 23,447 |
| 14th Century A-Z | 0 | - | 4.41 | 23,887 |
| 17th Century A-Z | 0 | - | 4.78 | 34,242 |
| NATO Military Alphabet | 0 | - | 4.98 | 557,034 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 799,847 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,929 |
| Geography by Letter - A | 0 | - | 4.74 | 211,079 |
| Geography by Letter - B | 0 | - | 4.56 | 184,137 |
| Geography by Letter - H | 0 | - | 4.69 | 149,908 |
| Geography by Letter - C | 0 | - | 4.47 | 158,274 |
| Geography by Letter - D | 0 | - | 4.50 | 150,121 |
| Geography by Letter - E | 0 | - | 4.42 | 147,222 |
| Geography by Letter - I | 0 | - | 4.42 | 121,693 |
| Geography by Letter - K | 0 | - | 4.53 | 117,805 |
| Geography by Letter - L | 0 | - | 4.43 | 148,159 |
| Geography by Letter - M | 0 | - | 4.49 | 118,301 |
| Geography by Letter - N | 0 | - | 4.51 | 126,726 |
| Geography by Letter - P | 0 | - | 4.47 | 175,659 |
| Geography by Letter - R | 0 | - | 4.43 | 130,948 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,162 |
| Geography by Letter - U | 0 | - | 4.53 | 142,651 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,070 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,561 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 41,259 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,225 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,801 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,274 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,462 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,070 |
| Movies that Start with G | 0 | - | 4.49 | 68,408 |
| Movies that Start with I | 0 | - | 4.41 | 65,060 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,828 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,280 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,262 |
| Empires by Maps | 0 | - | 4.98 | 119,508 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,482 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,927 |
| Name the War | 0 | - | 4.37 | 201,247 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,477 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,966 |
| Famous Families #1 | 0 | - | 4.20 | 83,514 |
| Names for Warriors | 0 | - | 4.40 | 36,870 |
| Famous Firsts #2 | 0 | - | 4.01 | 80,956 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,256 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,979 |
| Countries by Military Spending | 0 | - | 4.93 | 177,032 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,766 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,160 |
| Name a Minecraft Mob A-Z | 0 | - | 4.87 | 42,202 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,781 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,016 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,638 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,714 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,508 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,303 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,416 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,644 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,311,051 |
| Animals that Start with L | 0 | - | 4.47 | 101,710 |
| Animals that Start with P | 0 | - | 4.45 | 85,957 |
| Animals that Start with S | 0 | - | 4.49 | 87,153 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,059 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 117,099 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,489 |
| Islands A-Z | 0 | - | 4.46 | 117,180 |
| Human Body A-Z | 0 | - | 4.51 | 128,906 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,229 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,052 |
| Africa A-Z | 0 | - | 4.57 | 46,512 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,356 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,172 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,277 |
| Military History A-Z | 0 | - | 4.20 | 21,100 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,084 |
| Disney A-Z | 0 | - | 4.37 | 86,841 |
| Literature by Letter - A | 0 | - | 4.23 | 31,845 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,108 |
| Companies A-Z | 0 | - | 4.30 | 42,659 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,567 |
| Geography by Letter - G | 0 | - | 4.35 | 125,952 |
| Geography by Letter - F | 0 | - | 4.27 | 137,537 |
| Geography by Letter - J | 0 | - | 4.34 | 122,610 |
| Geography by Letter - O | 0 | - | 4.37 | 129,437 |
| Geography by Letter - V | 0 | - | 4.39 | 121,408 |
| Geography by Letter - W | 0 | - | 4.39 | 114,582 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,049 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,403 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,228 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,195 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,771 |
| Video Games A-Z | 0 | - | 4.08 | 38,848 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,169 |
| Movies that Start with A | 0 | - | 4.13 | 61,781 |
| Movies that Start with C | 0 | - | 4.30 | 61,733 |
| Movies that Start with B | 0 | - | 4.36 | 85,089 |
| Movies that Start with D | 0 | - | 4.34 | 68,348 |
| Movies that Start with E | 0 | - | 4.13 | 68,283 |
| Movies that Start with J | 0 | - | 4.18 | 76,063 |
| Movies that Start with L | 0 | - | 4.16 | 60,334 |
| Movies that Start with M | 0 | - | 4.28 | 48,156 |
| Movies that Start with N | 0 | - | 4.02 | 41,196 |
| Movies that Start with P | 0 | - | 4.25 | 54,089 |
| Movies that Start with R | 0 | - | 4.17 | 46,566 |
| Movies that Start with W | 0 | - | 4.07 | 44,212 |
| Movies that Start with T | 0 | - | 4.34 | 49,226 |
| Movies that Start with S | 0 | - | 4.35 | 56,384 |
| Movies that Start with F | 0 | - | 4.13 | 68,761 |
| Music by Letter - F | 0 | - | 4.48 | 26,929 |
| Music by Letter - A | 0 | - | 4.61 | 31,294 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,652 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,156 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,368 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,700 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,198 |
| Influential Women in History | 0 | - | 4.42 | 35,332 |
| Metals of Antiquity | 0 | - | 4.94 | 93,175 |
| Cradles of Civilization | 0 | - | 4.46 | 39,414 |
| Materials From History #1 | 0 | - | 4.56 | 51,365 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,463 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,854 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,945 |
| WWI... or WWII? | 0 | - | 4.85 | 141,494 |
| Oldest Things | 0 | - | 3.92 | 65,632 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,802 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,568 |
| Famous Explorers | 0 | - | 4.58 | 36,064 |
| Famous Empires by Description | 0 | - | 4.73 | 118,201 |
| Answers by Time Period | 0 | - | 4.64 | 55,437 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,604 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,075 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,503 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,996 |
| Middle East A-Z | 0 | - | 4.47 | 45,928 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,252 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,136 |
| Notable People of WWII | 0 | - | 4.53 | 85,503 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,747 |
| World War I Quiz | 0 | - | 4.78 | 100,697 |
| WWI A-Z | 0 | - | 4.50 | 38,183 |
| Most Important People in History | 0 | - | 3.98 | 50,560 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 89,668 |
| Star Wars A-Z | 0 | - | 4.46 | 87,770 |
| Monarchies of the World | 0 | - | 4.94 | 167,520 |
