| History by Letter - B | 0 | - | 4.45 | 172,763 |
| History by Letter - C | 0 | - | 4.70 | 172,040 |
| History by Letter - E | 0 | - | 4.51 | 141,052 |
| History by Letter - G | 0 | - | 4.46 | 122,505 |
| History by Letter - H | 0 | - | 4.45 | 137,136 |
| History by Letter - J | 0 | - | 4.51 | 154,510 |
| History by Letter - N | 0 | - | 4.45 | 104,386 |
| History by Letter - S | 0 | - | 4.47 | 94,679 |
| History by Letter - W | 0 | - | 4.45 | 109,869 |
| History by Letter - M | 0 | - | 4.54 | 120,189 |
| History by Letter - K | 0 | - | 4.50 | 101,673 |
| History by Letter - L | 0 | - | 4.50 | 112,444 |
| History by Letter - I | 0 | - | 4.46 | 104,719 |
| History by Letter - D | 0 | - | 4.40 | 138,173 |
| History by Letter - F | 0 | - | 4.18 | 114,766 |
| History by Letter - O | 0 | - | 4.32 | 99,782 |
| History by Letter - P | 0 | - | 4.36 | 108,137 |
| History by Letter - Q | 0 | - | 4.34 | 80,542 |
| History by Letter - R | 0 | - | 4.26 | 122,493 |
| History by Letter - U | 0 | - | 4.19 | 101,054 |
| History by Letter - V | 0 | - | 4.27 | 80,987 |
| History by Letter - Y | 0 | - | 4.27 | 87,502 |
| History by Letter - Z | 0 | - | 4.20 | 77,249 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,289 |
| History Containing the Letter X | 0 | - | 4.47 | 27,091 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,481 |
| Empires A-Z | 0 | - | 4.52 | 45,274 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,762 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,717 |
| History Ending in Z | 0 | - | 4.35 | 13,555 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,037 |
| Geography by Letter - T | 0 | - | 4.84 | 154,415 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,188 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,215 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,260 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,545 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,357 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,788 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,068 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,551 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,800 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,331 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,776 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,131 |
| 20th Century A-Z | 0 | - | 4.50 | 53,836 |
| 19th Century A-Z | 0 | - | 4.77 | 47,367 |
| 18th Century A-Z | 0 | - | 4.54 | 43,239 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,517 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,218 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,563 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,007 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,718 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,318 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,717 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,508 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,920 |
| 16th Century A-Z | 0 | - | 4.58 | 24,943 |
| 15th Century A-Z | 0 | - | 4.49 | 23,963 |
| 14th Century A-Z | 0 | - | 4.41 | 24,427 |
| 17th Century A-Z | 0 | - | 4.78 | 34,683 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,674 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,517 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,045 |
| Geography by Letter - A | 0 | - | 4.74 | 212,120 |
| Geography by Letter - B | 0 | - | 4.56 | 185,125 |
| Geography by Letter - H | 0 | - | 4.69 | 150,718 |
| Geography by Letter - C | 0 | - | 4.47 | 159,134 |
| Geography by Letter - D | 0 | - | 4.50 | 151,159 |
| Geography by Letter - E | 0 | - | 4.42 | 148,004 |
| Geography by Letter - I | 0 | - | 4.42 | 122,321 |
| Geography by Letter - K | 0 | - | 4.53 | 118,679 |
| Geography by Letter - L | 0 | - | 4.43 | 148,885 |
| Geography by Letter - M | 0 | - | 4.49 | 118,955 |
| Geography by Letter - N | 0 | - | 4.51 | 127,509 |
| Geography by Letter - P | 0 | - | 4.47 | 176,403 |
| Geography by Letter - R | 0 | - | 4.43 | 132,085 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,942 |
| Geography by Letter - U | 0 | - | 4.53 | 143,470 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,228 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,703 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,036 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,415 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,993 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,420 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,675 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,433 |
| Movies that Start with G | 0 | - | 4.49 | 68,632 |
| Movies that Start with I | 0 | - | 4.41 | 65,241 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,121 |
| Empires by Maps | 0 | - | 4.98 | 120,968 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,884 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,037 |
| Name the War | 0 | - | 4.37 | 202,380 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,574 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,127 |
| Famous Families #1 | 0 | - | 4.20 | 83,658 |
| Names for Warriors | 0 | - | 4.40 | 36,984 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,099 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,474 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,074 |
| Countries by Military Spending | 0 | - | 4.93 | 178,382 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,253 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,172 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,486 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,548 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,837 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,126 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,751 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,409 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,506 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,717 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,319,886 |
| Animals that Start with L | 0 | - | 4.47 | 102,258 |
| Animals that Start with P | 0 | - | 4.45 | 86,305 |
| Animals that Start with S | 0 | - | 4.49 | 87,511 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,717 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,092 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,442 |
| Islands A-Z | 0 | - | 4.46 | 125,769 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,292 |
| Human Body A-Z | 0 | - | 4.51 | 129,382 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,338 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,746 |
| Africa A-Z | 0 | - | 4.57 | 46,682 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 57,965 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,366 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,407 |
| Military History A-Z | 0 | - | 4.20 | 21,194 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,174 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,258 |
| Brand Logos That Start With D | 0 | - | 4.35 | 61,807 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,860 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,443 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,109 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,892 |
| Disney A-Z | 0 | - | 4.37 | 87,276 |
| Literature by Letter - A | 0 | - | 4.24 | 32,225 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,334 |
| Companies A-Z | 0 | - | 4.30 | 42,724 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,674 |
| Geography by Letter - G | 0 | - | 4.33 | 126,624 |
| Geography by Letter - F | 0 | - | 4.27 | 138,185 |
| Geography by Letter - J | 0 | - | 4.34 | 123,241 |
| Geography by Letter - O | 0 | - | 4.37 | 130,062 |
| Geography by Letter - V | 0 | - | 4.39 | 122,112 |
| Geography by Letter - W | 0 | - | 4.39 | 115,114 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,823 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,877 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,735 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,310 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,905 |
| Video Games A-Z | 0 | - | 4.05 | 39,092 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,318 |
| Movies that Start with A | 0 | - | 4.13 | 61,946 |
| Movies that Start with C | 0 | - | 4.30 | 61,939 |
| Movies that Start with B | 0 | - | 4.36 | 85,321 |
| Movies that Start with D | 0 | - | 4.34 | 68,509 |
| Movies that Start with E | 0 | - | 4.13 | 68,439 |
| Movies that Start with J | 0 | - | 4.18 | 76,254 |
| Movies that Start with L | 0 | - | 4.16 | 60,484 |
| Movies that Start with M | 0 | - | 4.28 | 48,290 |
| Movies that Start with N | 0 | - | 4.02 | 41,302 |
| Movies that Start with P | 0 | - | 4.25 | 54,196 |
| Movies that Start with R | 0 | - | 4.17 | 46,699 |
| Movies that Start with W | 0 | - | 4.07 | 44,295 |
| Movies that Start with T | 0 | - | 4.34 | 49,362 |
| Movies that Start with S | 0 | - | 4.35 | 56,538 |
| Movies that Start with F | 0 | - | 4.13 | 68,931 |
| Music by Letter - F | 0 | - | 4.48 | 27,052 |
| Music by Letter - A | 0 | - | 4.61 | 31,439 |
| Influential Women in History | 0 | - | 4.42 | 36,067 |
| Metals of Antiquity | 0 | - | 4.95 | 93,615 |
| Cradles of Civilization | 0 | - | 4.46 | 40,039 |
| Materials From History #1 | 0 | - | 4.56 | 51,841 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,873 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,592 |
| WWI... or WWII? | 0 | - | 4.85 | 142,641 |
| Oldest Things | 0 | - | 3.92 | 65,672 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,835 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,209 |
| Famous Explorers | 0 | - | 4.58 | 36,251 |
| Famous Empires by Description | 0 | - | 4.73 | 118,672 |
| Answers by Time Period | 0 | - | 4.64 | 55,705 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,682 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,407 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,648 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,247 |
| Middle East A-Z | 0 | - | 4.47 | 46,150 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,426 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,294 |
| Notable People of WWII | 0 | - | 4.53 | 86,031 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,310 |
| World War I Quiz | 0 | - | 4.78 | 101,451 |
| WWI A-Z | 0 | - | 4.51 | 38,439 |
| Most Important People in History | 0 | - | 3.98 | 50,807 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,756 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,097 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 181,852 |
| Star Wars A-Z | 0 | - | 4.46 | 88,452 |
| Monarchies of the World | 0 | - | 4.94 | 169,263 |
