| History by Letter - B | 0 | - | 4.45 | 172,933 |
| History by Letter - C | 0 | - | 4.70 | 172,259 |
| History by Letter - E | 0 | - | 4.51 | 141,208 |
| History by Letter - G | 0 | - | 4.46 | 122,645 |
| History by Letter - H | 0 | - | 4.45 | 137,291 |
| History by Letter - J | 0 | - | 4.51 | 154,658 |
| History by Letter - N | 0 | - | 4.45 | 104,479 |
| History by Letter - S | 0 | - | 4.47 | 94,771 |
| History by Letter - W | 0 | - | 4.45 | 109,994 |
| History by Letter - M | 0 | - | 4.54 | 120,292 |
| History by Letter - K | 0 | - | 4.50 | 101,775 |
| History by Letter - L | 0 | - | 4.50 | 112,549 |
| History by Letter - I | 0 | - | 4.46 | 104,807 |
| History by Letter - D | 0 | - | 4.40 | 138,322 |
| History by Letter - F | 0 | - | 4.18 | 114,877 |
| History by Letter - O | 0 | - | 4.32 | 99,872 |
| History by Letter - P | 0 | - | 4.36 | 108,237 |
| History by Letter - Q | 0 | - | 4.34 | 80,619 |
| History by Letter - R | 0 | - | 4.26 | 122,590 |
| History by Letter - T | 0 | - | 4.39 | 105,625 |
| History by Letter - U | 0 | - | 4.19 | 101,143 |
| History by Letter - V | 0 | - | 4.27 | 81,067 |
| History by Letter - Y | 0 | - | 4.27 | 87,581 |
| History by Letter - Z | 0 | - | 4.20 | 77,318 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,310 |
| History Containing the Letter X | 0 | - | 4.47 | 27,116 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,500 |
| Empires A-Z | 0 | - | 4.52 | 45,352 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,782 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,748 |
| History Ending in Z | 0 | - | 4.35 | 13,571 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,686 |
| Geography by Letter - T | 0 | - | 4.84 | 154,731 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,540 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,364 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,360 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,732 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,556 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,901 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,308 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,678 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,369 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,544 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,952 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,250 |
| 20th Century A-Z | 0 | - | 4.50 | 53,893 |
| 19th Century A-Z | 0 | - | 4.77 | 47,410 |
| 18th Century A-Z | 0 | - | 4.54 | 43,263 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,745 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,306 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,694 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,071 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,086 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,551 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,760 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,574 |
| Territory Changes in World War I | 0 | - | 4.87 | 47,014 |
| 16th Century A-Z | 0 | - | 4.58 | 24,972 |
| 15th Century A-Z | 0 | - | 4.49 | 23,982 |
| 14th Century A-Z | 0 | - | 4.41 | 24,459 |
| 17th Century A-Z | 0 | - | 4.78 | 34,712 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,846 |
| NATO Military Alphabet | 0 | - | 4.98 | 562,729 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,081 |
| Geography by Letter - A | 0 | - | 4.74 | 212,415 |
| Geography by Letter - B | 0 | - | 4.56 | 185,415 |
| Geography by Letter - H | 0 | - | 4.69 | 150,971 |
| Geography by Letter - C | 0 | - | 4.48 | 159,398 |
| Geography by Letter - D | 0 | - | 4.50 | 151,388 |
| Geography by Letter - E | 0 | - | 4.42 | 148,227 |
| Geography by Letter - I | 0 | - | 4.42 | 122,506 |
| Geography by Letter - K | 0 | - | 4.54 | 118,863 |
| Geography by Letter - L | 0 | - | 4.44 | 149,319 |
| Geography by Letter - M | 0 | - | 4.49 | 119,271 |
| Geography by Letter - N | 0 | - | 4.51 | 127,709 |
| Geography by Letter - P | 0 | - | 4.47 | 176,627 |
| Geography by Letter - R | 0 | - | 4.43 | 132,326 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,155 |
| Geography by Letter - U | 0 | - | 4.53 | 143,655 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,272 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,735 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,105 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,480 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,058 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,460 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,722 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,506 |
| Movies that Start with G | 0 | - | 4.49 | 68,729 |
| Movies that Start with I | 0 | - | 4.41 | 65,332 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,379 |
| Empires by Maps | 0 | - | 4.98 | 121,328 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,975 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,074 |
| Name the War | 0 | - | 4.37 | 202,553 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,604 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,380 |
| Famous Families #1 | 0 | - | 4.20 | 83,691 |
| Names for Warriors | 0 | - | 4.40 | 37,016 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,370 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,516 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,144 |
| Countries by Military Spending | 0 | - | 4.93 | 178,676 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,438 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,392 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,617 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,676 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,888 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,217 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,799 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,433 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,527 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,736 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,322,171 |
| Animals that Start with L | 0 | - | 4.47 | 102,321 |
| Animals that Start with P | 0 | - | 4.45 | 86,370 |
| Animals that Start with S | 0 | - | 4.49 | 87,573 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,861 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,267 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,554 |
| Islands A-Z | 0 | - | 4.46 | 126,515 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,399 |
| Human Body A-Z | 0 | - | 4.51 | 129,487 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,785 |
| Africa A-Z | 0 | - | 4.57 | 46,727 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,092 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,431 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,434 |
| Military History A-Z | 0 | - | 4.20 | 21,219 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,198 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,396 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,947 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,958 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,637 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,262 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,046 |
| Disney A-Z | 0 | - | 4.37 | 87,374 |
| Literature by Letter - A | 0 | - | 4.24 | 32,287 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,369 |
| Companies A-Z | 0 | - | 4.30 | 42,747 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,699 |
| Geography by Letter - G | 0 | - | 4.33 | 126,829 |
| Geography by Letter - F | 0 | - | 4.28 | 138,550 |
| Geography by Letter - J | 0 | - | 4.35 | 123,430 |
| Geography by Letter - O | 0 | - | 4.37 | 130,247 |
| Geography by Letter - V | 0 | - | 4.39 | 122,301 |
| Geography by Letter - W | 0 | - | 4.39 | 115,261 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,960 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,998 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,891 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,342 |
| Video Games A-Z | 0 | - | 4.05 | 39,155 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,350 |
| Movies that Start with A | 0 | - | 4.13 | 62,059 |
| Movies that Start with C | 0 | - | 4.30 | 62,051 |
| Movies that Start with B | 0 | - | 4.36 | 85,616 |
| Movies that Start with D | 0 | - | 4.34 | 68,598 |
| Movies that Start with E | 0 | - | 4.13 | 68,536 |
| Movies that Start with J | 0 | - | 4.18 | 76,347 |
| Movies that Start with L | 0 | - | 4.16 | 60,550 |
| Movies that Start with M | 0 | - | 4.28 | 48,351 |
| Movies that Start with N | 0 | - | 4.02 | 41,349 |
| Movies that Start with P | 0 | - | 4.25 | 54,248 |
| Movies that Start with R | 0 | - | 4.17 | 46,763 |
| Movies that Start with W | 0 | - | 4.07 | 44,342 |
| Movies that Start with T | 0 | - | 4.34 | 49,415 |
| Movies that Start with S | 0 | - | 4.35 | 56,592 |
| Movies that Start with F | 0 | - | 4.13 | 69,018 |
| Music by Letter - F | 0 | - | 4.47 | 27,086 |
| Music by Letter - A | 0 | - | 4.61 | 31,480 |
| Influential Women in History | 0 | - | 4.42 | 36,193 |
| Metals of Antiquity | 0 | - | 4.95 | 93,727 |
| Cradles of Civilization | 0 | - | 4.46 | 40,141 |
| Materials From History #1 | 0 | - | 4.56 | 51,924 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,966 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,295 |
| WWI... or WWII? | 0 | - | 4.85 | 142,926 |
| Oldest Things | 0 | - | 3.92 | 65,690 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,847 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,342 |
| Famous Explorers | 0 | - | 4.58 | 36,283 |
| Famous Empires by Description | 0 | - | 4.73 | 118,812 |
| Answers by Time Period | 0 | - | 4.64 | 55,777 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,912 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,493 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,032 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,331 |
| Middle East A-Z | 0 | - | 4.47 | 46,196 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,473 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,327 |
| Notable People of WWII | 0 | - | 4.53 | 86,083 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,391 |
| World War I Quiz | 0 | - | 4.78 | 101,559 |
| WWI A-Z | 0 | - | 4.51 | 38,501 |
| Most Important People in History | 0 | - | 3.98 | 50,876 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,772 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,550 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,723 |
| Star Wars A-Z | 0 | - | 4.46 | 88,599 |
| Monarchies of the World | 0 | - | 4.94 | 169,640 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,541 |
