| History by Letter - B | 0 | - | 4.45 | 172,843 |
| History by Letter - C | 0 | - | 4.70 | 172,156 |
| History by Letter - E | 0 | - | 4.51 | 141,133 |
| History by Letter - G | 0 | - | 4.46 | 122,580 |
| History by Letter - H | 0 | - | 4.45 | 137,225 |
| History by Letter - J | 0 | - | 4.51 | 154,591 |
| History by Letter - N | 0 | - | 4.45 | 104,432 |
| History by Letter - S | 0 | - | 4.47 | 94,732 |
| History by Letter - W | 0 | - | 4.45 | 109,949 |
| History by Letter - M | 0 | - | 4.54 | 120,253 |
| History by Letter - K | 0 | - | 4.50 | 101,726 |
| History by Letter - L | 0 | - | 4.50 | 112,502 |
| History by Letter - I | 0 | - | 4.46 | 104,764 |
| History by Letter - F | 0 | - | 4.18 | 114,827 |
| History by Letter - O | 0 | - | 4.32 | 99,829 |
| History by Letter - P | 0 | - | 4.36 | 108,193 |
| History by Letter - Q | 0 | - | 4.34 | 80,586 |
| History by Letter - R | 0 | - | 4.26 | 122,550 |
| History by Letter - T | 0 | - | 4.39 | 105,591 |
| History by Letter - U | 0 | - | 4.19 | 101,104 |
| History by Letter - V | 0 | - | 4.27 | 81,030 |
| History by Letter - Y | 0 | - | 4.27 | 87,546 |
| History by Letter - Z | 0 | - | 4.20 | 77,287 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,299 |
| History Containing the Letter X | 0 | - | 4.47 | 27,106 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,496 |
| Empires A-Z | 0 | - | 4.52 | 45,322 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,774 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,737 |
| History Ending in Z | 0 | - | 4.35 | 13,566 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,483 |
| Geography by Letter - T | 0 | - | 4.84 | 154,614 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,253 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,256 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,285 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,660 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,484 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,864 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,217 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,626 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,965 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,461 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,875 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,208 |
| 20th Century A-Z | 0 | - | 4.50 | 53,870 |
| 19th Century A-Z | 0 | - | 4.77 | 47,390 |
| 18th Century A-Z | 0 | - | 4.54 | 43,252 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,670 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,267 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,643 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,024 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,946 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,459 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,749 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,545 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,976 |
| 16th Century A-Z | 0 | - | 4.58 | 24,961 |
| 15th Century A-Z | 0 | - | 4.49 | 23,975 |
| 14th Century A-Z | 0 | - | 4.41 | 24,447 |
| 17th Century A-Z | 0 | - | 4.78 | 34,701 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,783 |
| NATO Military Alphabet | 0 | - | 4.98 | 562,282 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,062 |
| Geography by Letter - A | 0 | - | 4.74 | 212,298 |
| Geography by Letter - B | 0 | - | 4.56 | 185,314 |
| Geography by Letter - H | 0 | - | 4.69 | 150,889 |
| Geography by Letter - C | 0 | - | 4.48 | 159,311 |
| Geography by Letter - D | 0 | - | 4.50 | 151,314 |
| Geography by Letter - E | 0 | - | 4.42 | 148,152 |
| Geography by Letter - I | 0 | - | 4.42 | 122,437 |
| Geography by Letter - K | 0 | - | 4.54 | 118,799 |
| Geography by Letter - L | 0 | - | 4.44 | 149,235 |
| Geography by Letter - M | 0 | - | 4.49 | 119,089 |
| Geography by Letter - N | 0 | - | 4.51 | 127,641 |
| Geography by Letter - P | 0 | - | 4.47 | 176,540 |
| Geography by Letter - R | 0 | - | 4.43 | 132,226 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,074 |
| Geography by Letter - U | 0 | - | 4.53 | 143,587 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,260 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,725 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,081 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,453 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,034 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,442 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,706 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,481 |
| Movies that Start with G | 0 | - | 4.49 | 68,711 |
| Movies that Start with I | 0 | - | 4.41 | 65,307 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,295 |
| Empires by Maps | 0 | - | 4.98 | 121,195 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,946 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,059 |
| Name the War | 0 | - | 4.37 | 202,493 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,595 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,358 |
| Famous Families #1 | 0 | - | 4.20 | 83,673 |
| Names for Warriors | 0 | - | 4.40 | 37,006 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,349 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,501 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,097 |
| Countries by Military Spending | 0 | - | 4.93 | 178,589 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,394 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,328 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,575 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,635 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,874 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,177 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,786 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,426 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,518 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,730 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,321,389 |
| Animals that Start with L | 0 | - | 4.47 | 102,305 |
| Animals that Start with P | 0 | - | 4.45 | 86,348 |
| Animals that Start with S | 0 | - | 4.49 | 87,553 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,804 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,203 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,514 |
| Islands A-Z | 0 | - | 4.46 | 126,243 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,370 |
| Human Body A-Z | 0 | - | 4.51 | 129,456 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,697 |
| Africa A-Z | 0 | - | 4.57 | 46,715 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,055 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,413 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,424 |
| Military History A-Z | 0 | - | 4.20 | 21,203 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,192 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,345 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,889 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,909 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,562 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,195 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,987 |
| Disney A-Z | 0 | - | 4.37 | 87,329 |
| Literature by Letter - A | 0 | - | 4.24 | 32,262 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,360 |
| Companies A-Z | 0 | - | 4.30 | 42,738 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,693 |
| Geography by Letter - G | 0 | - | 4.33 | 126,758 |
| Geography by Letter - F | 0 | - | 4.28 | 138,473 |
| Geography by Letter - J | 0 | - | 4.35 | 123,349 |
| Geography by Letter - O | 0 | - | 4.37 | 130,185 |
| Geography by Letter - V | 0 | - | 4.39 | 122,218 |
| Geography by Letter - W | 0 | - | 4.39 | 115,208 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,909 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,952 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,826 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,328 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,922 |
| Video Games A-Z | 0 | - | 4.05 | 39,136 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,338 |
| Movies that Start with A | 0 | - | 4.13 | 62,043 |
| Movies that Start with C | 0 | - | 4.30 | 62,032 |
| Movies that Start with B | 0 | - | 4.36 | 85,593 |
| Movies that Start with D | 0 | - | 4.34 | 68,584 |
| Movies that Start with E | 0 | - | 4.13 | 68,518 |
| Movies that Start with J | 0 | - | 4.18 | 76,318 |
| Movies that Start with L | 0 | - | 4.16 | 60,530 |
| Movies that Start with M | 0 | - | 4.28 | 48,338 |
| Movies that Start with N | 0 | - | 4.02 | 41,336 |
| Movies that Start with P | 0 | - | 4.25 | 54,235 |
| Movies that Start with R | 0 | - | 4.17 | 46,744 |
| Movies that Start with W | 0 | - | 4.07 | 44,329 |
| Movies that Start with T | 0 | - | 4.34 | 49,402 |
| Movies that Start with S | 0 | - | 4.35 | 56,576 |
| Movies that Start with F | 0 | - | 4.13 | 69,003 |
| Music by Letter - F | 0 | - | 4.48 | 27,072 |
| Music by Letter - A | 0 | - | 4.61 | 31,466 |
| Influential Women in History | 0 | - | 4.42 | 36,170 |
| Metals of Antiquity | 0 | - | 4.95 | 93,683 |
| Cradles of Civilization | 0 | - | 4.46 | 40,122 |
| Materials From History #1 | 0 | - | 4.56 | 51,904 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,928 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,024 |
| WWI... or WWII? | 0 | - | 4.85 | 142,803 |
| Oldest Things | 0 | - | 3.92 | 65,685 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,840 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,300 |
| Famous Explorers | 0 | - | 4.58 | 36,274 |
| Famous Empires by Description | 0 | - | 4.73 | 118,760 |
| Answers by Time Period | 0 | - | 4.64 | 55,750 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,896 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,465 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,901 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,303 |
| Middle East A-Z | 0 | - | 4.47 | 46,183 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,459 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,315 |
| Notable People of WWII | 0 | - | 4.53 | 86,063 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,366 |
| World War I Quiz | 0 | - | 4.78 | 101,524 |
| WWI A-Z | 0 | - | 4.51 | 38,477 |
| Most Important People in History | 0 | - | 3.98 | 50,854 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,766 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,399 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,367 |
| Star Wars A-Z | 0 | - | 4.46 | 88,540 |
| Monarchies of the World | 0 | - | 4.94 | 169,519 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,475 |
