| History by Letter - B | 0 | - | 4.45 | 171,819 |
| History by Letter - C | 0 | - | 4.70 | 170,954 |
| History by Letter - E | 0 | - | 4.51 | 140,313 |
| History by Letter - G | 0 | - | 4.46 | 121,836 |
| History by Letter - H | 0 | - | 4.45 | 136,298 |
| History by Letter - J | 0 | - | 4.51 | 153,744 |
| History by Letter - N | 0 | - | 4.45 | 103,730 |
| History by Letter - S | 0 | - | 4.47 | 94,087 |
| History by Letter - W | 0 | - | 4.45 | 109,111 |
| History by Letter - M | 0 | - | 4.54 | 119,615 |
| History by Letter - K | 0 | - | 4.50 | 101,158 |
| History by Letter - L | 0 | - | 4.50 | 111,873 |
| History by Letter - I | 0 | - | 4.46 | 104,020 |
| History by Letter - D | 0 | - | 4.39 | 137,297 |
| History by Letter - F | 0 | - | 4.18 | 114,020 |
| History by Letter - O | 0 | - | 4.32 | 99,334 |
| History by Letter - P | 0 | - | 4.39 | 107,665 |
| History by Letter - Q | 0 | - | 4.34 | 80,206 |
| History by Letter - R | 0 | - | 4.26 | 122,000 |
| History by Letter - T | 0 | - | 4.39 | 105,134 |
| History by Letter - U | 0 | - | 4.19 | 100,651 |
| History by Letter - V | 0 | - | 4.27 | 80,633 |
| History by Letter - Y | 0 | - | 4.27 | 87,145 |
| History by Letter - Z | 0 | - | 4.19 | 76,927 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,197 |
| History Containing the Letter X | 0 | - | 4.47 | 26,997 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,405 |
| Empires A-Z | 0 | - | 4.51 | 45,032 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,714 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,619 |
| History Ending in Z | 0 | - | 4.35 | 13,503 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,725 |
| Geography by Letter - T | 0 | - | 4.84 | 153,392 |
| People in History A-Z #1 | 0 | - | 4.61 | 98,868 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,986 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,092 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,896 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,574 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,095 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,618 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,765 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,513 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,055 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,843 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,522 |
| 20th Century A-Z | 0 | - | 4.50 | 53,408 |
| 19th Century A-Z | 0 | - | 4.77 | 46,970 |
| 18th Century A-Z | 0 | - | 4.54 | 42,848 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,589 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,873 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,236 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,884 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,002 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,498 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,535 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,319 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,573 |
| 16th Century A-Z | 0 | - | 4.58 | 24,596 |
| 15th Century A-Z | 0 | - | 4.49 | 23,617 |
| 14th Century A-Z | 0 | - | 4.41 | 24,036 |
| 17th Century A-Z | 0 | - | 4.78 | 34,358 |
| NATO Military Alphabet | 0 | - | 4.98 | 557,389 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 800,357 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,936 |
| Geography by Letter - A | 0 | - | 4.74 | 211,191 |
| Geography by Letter - B | 0 | - | 4.56 | 184,247 |
| Geography by Letter - H | 0 | - | 4.69 | 150,014 |
| Geography by Letter - C | 0 | - | 4.47 | 158,364 |
| Geography by Letter - D | 0 | - | 4.50 | 150,210 |
| Geography by Letter - E | 0 | - | 4.42 | 147,313 |
| Geography by Letter - I | 0 | - | 4.42 | 121,763 |
| Geography by Letter - K | 0 | - | 4.53 | 117,878 |
| Geography by Letter - L | 0 | - | 4.43 | 148,227 |
| Geography by Letter - M | 0 | - | 4.49 | 118,385 |
| Geography by Letter - N | 0 | - | 4.51 | 126,796 |
| Geography by Letter - P | 0 | - | 4.47 | 175,747 |
| Geography by Letter - R | 0 | - | 4.43 | 131,183 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,257 |
| Geography by Letter - U | 0 | - | 4.53 | 142,754 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,077 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,583 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 42,422 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,247 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,821 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,295 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,483 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,096 |
| Movies that Start with G | 0 | - | 4.49 | 68,429 |
| Movies that Start with I | 0 | - | 4.41 | 65,076 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,902 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,357 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,346 |
| Empires by Maps | 0 | - | 4.98 | 119,680 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,521 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,935 |
| Name the War | 0 | - | 4.37 | 201,308 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,492 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,976 |
| Famous Families #1 | 0 | - | 4.20 | 83,527 |
| Names for Warriors | 0 | - | 4.40 | 36,884 |
| Famous Firsts #2 | 0 | - | 4.01 | 80,967 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,280 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,986 |
| Countries by Military Spending | 0 | - | 4.93 | 177,129 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,796 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,233 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,825 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,051 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,650 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,756 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,526 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,310 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,425 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,648 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,311,808 |
| Animals that Start with L | 0 | - | 4.47 | 101,730 |
| Animals that Start with P | 0 | - | 4.45 | 85,977 |
| Animals that Start with S | 0 | - | 4.49 | 87,175 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,119 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 117,176 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,640 |
| Islands A-Z | 0 | - | 4.46 | 117,262 |
| Human Body A-Z | 0 | - | 4.51 | 128,941 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,280 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,096 |
| Africa A-Z | 0 | - | 4.57 | 46,531 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,425 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,186 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,291 |
| Military History A-Z | 0 | - | 4.20 | 21,112 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,096 |
| Disney A-Z | 0 | - | 4.37 | 86,876 |
| Literature by Letter - A | 0 | - | 4.23 | 31,856 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,116 |
| Companies A-Z | 0 | - | 4.30 | 42,666 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,574 |
| Geography by Letter - G | 0 | - | 4.35 | 126,025 |
| Geography by Letter - F | 0 | - | 4.27 | 137,601 |
| Geography by Letter - J | 0 | - | 4.34 | 122,679 |
| Geography by Letter - O | 0 | - | 4.37 | 129,504 |
| Geography by Letter - V | 0 | - | 4.39 | 121,476 |
| Geography by Letter - W | 0 | - | 4.39 | 114,643 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,121 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,452 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,287 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,206 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,793 |
| Video Games A-Z | 0 | - | 4.08 | 38,862 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,187 |
| Movies that Start with A | 0 | - | 4.13 | 61,797 |
| Movies that Start with C | 0 | - | 4.30 | 61,754 |
| Movies that Start with B | 0 | - | 4.36 | 85,107 |
| Movies that Start with D | 0 | - | 4.34 | 68,362 |
| Movies that Start with E | 0 | - | 4.13 | 68,295 |
| Movies that Start with J | 0 | - | 4.18 | 76,080 |
| Movies that Start with L | 0 | - | 4.16 | 60,352 |
| Movies that Start with M | 0 | - | 4.28 | 48,168 |
| Movies that Start with N | 0 | - | 4.02 | 41,209 |
| Movies that Start with P | 0 | - | 4.25 | 54,100 |
| Movies that Start with R | 0 | - | 4.17 | 46,574 |
| Movies that Start with W | 0 | - | 4.07 | 44,218 |
| Movies that Start with T | 0 | - | 4.34 | 49,234 |
| Movies that Start with S | 0 | - | 4.35 | 56,394 |
| Movies that Start with F | 0 | - | 4.13 | 68,774 |
| Music by Letter - F | 0 | - | 4.48 | 26,943 |
| Music by Letter - A | 0 | - | 4.61 | 31,309 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,698 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,209 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,418 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,776 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,255 |
| Influential Women in History | 0 | - | 4.42 | 35,402 |
| Metals of Antiquity | 0 | - | 4.94 | 93,207 |
| Cradles of Civilization | 0 | - | 4.46 | 39,471 |
| Materials From History #1 | 0 | - | 4.56 | 51,401 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,510 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,941 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,127 |
| WWI... or WWII? | 0 | - | 4.85 | 141,630 |
| Oldest Things | 0 | - | 3.92 | 65,637 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,805 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,620 |
| Famous Explorers | 0 | - | 4.58 | 36,090 |
| Famous Empires by Description | 0 | - | 4.73 | 118,248 |
| Answers by Time Period | 0 | - | 4.64 | 55,461 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,614 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,101 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,576 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,025 |
| Middle East A-Z | 0 | - | 4.47 | 45,941 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,267 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,161 |
| Notable People of WWII | 0 | - | 4.53 | 85,531 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,789 |
| World War I Quiz | 0 | - | 4.78 | 101,059 |
| WWI A-Z | 0 | - | 4.50 | 38,218 |
| Most Important People in History | 0 | - | 3.98 | 50,578 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 90,078 |
| Star Wars A-Z | 0 | - | 4.46 | 87,865 |
| Monarchies of the World | 0 | - | 4.94 | 167,638 |
