| History by Letter - B | 0 | - | 4.45 | 171,231 |
| History by Letter - C | 0 | - | 4.69 | 170,267 |
| History by Letter - E | 0 | - | 4.51 | 139,818 |
| History by Letter - G | 0 | - | 4.45 | 121,423 |
| History by Letter - H | 0 | - | 4.45 | 135,845 |
| History by Letter - J | 0 | - | 4.51 | 153,207 |
| History by Letter - N | 0 | - | 4.44 | 103,371 |
| History by Letter - S | 0 | - | 4.47 | 93,660 |
| History by Letter - W | 0 | - | 4.45 | 108,706 |
| History by Letter - M | 0 | - | 4.54 | 119,078 |
| History by Letter - K | 0 | - | 4.50 | 100,810 |
| History by Letter - L | 0 | - | 4.49 | 111,486 |
| History by Letter - I | 0 | - | 4.46 | 103,662 |
| History by Letter - D | 0 | - | 4.39 | 136,859 |
| History by Letter - O | 0 | - | 4.31 | 99,037 |
| History by Letter - P | 0 | - | 4.38 | 107,324 |
| History by Letter - Q | 0 | - | 4.34 | 79,962 |
| History by Letter - R | 0 | - | 4.26 | 121,631 |
| History by Letter - T | 0 | - | 4.39 | 104,852 |
| History by Letter - U | 0 | - | 4.19 | 100,227 |
| History by Letter - V | 0 | - | 4.27 | 80,348 |
| History by Letter - Y | 0 | - | 4.27 | 86,922 |
| History by Letter - Z | 0 | - | 4.18 | 76,726 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,111 |
| History Containing the Letter X | 0 | - | 4.47 | 26,928 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,340 |
| Empires A-Z | 0 | - | 4.51 | 44,805 |
| Same Start and End Letter - History #1 | 0 | - | 4.16 | 24,662 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,535 |
| History Ending in Z | 0 | - | 4.35 | 13,450 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 128,626 |
| Geography by Letter - T | 0 | - | 4.84 | 152,382 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,580 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,803 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,952 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,238 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,868 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,711 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,894 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,366 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,707 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,353 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,348 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,127 |
| 20th Century A-Z | 0 | - | 4.50 | 53,152 |
| 19th Century A-Z | 0 | - | 4.77 | 46,722 |
| 18th Century A-Z | 0 | - | 4.54 | 42,637 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,743 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,531 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,900 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,794 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,779 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,708 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,380 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,099 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,212 |
| 16th Century A-Z | 0 | - | 4.58 | 24,373 |
| 15th Century A-Z | 0 | - | 4.49 | 23,389 |
| 17th Century A-Z | 0 | - | 4.78 | 34,165 |
| NATO Military Alphabet | 0 | - | 4.98 | 554,024 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,758 |
| Geography by Letter - A | 0 | - | 4.74 | 210,060 |
| Geography by Letter - B | 0 | - | 4.56 | 183,231 |
| Geography by Letter - H | 0 | - | 4.69 | 149,254 |
| Geography by Letter - C | 0 | - | 4.47 | 157,528 |
| Geography by Letter - D | 0 | - | 4.50 | 149,465 |
| Geography by Letter - E | 0 | - | 4.42 | 146,622 |
| Geography by Letter - I | 0 | - | 4.42 | 121,182 |
| Geography by Letter - K | 0 | - | 4.53 | 117,305 |
| Geography by Letter - L | 0 | - | 4.43 | 147,589 |
| Geography by Letter - M | 0 | - | 4.49 | 117,603 |
| Geography by Letter - N | 0 | - | 4.51 | 126,208 |
| Geography by Letter - P | 0 | - | 4.47 | 175,119 |
| Geography by Letter - R | 0 | - | 4.43 | 130,298 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,571 |
| Geography by Letter - U | 0 | - | 4.54 | 142,039 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,972 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,458 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 32,788 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,037 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,673 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,180 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,325 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,891 |
| Movies that Start with G | 0 | - | 4.48 | 68,234 |
| Movies that Start with I | 0 | - | 4.41 | 64,876 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,211 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,167 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,734 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,498 |
| Empires by Maps | 0 | - | 4.98 | 118,400 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,206 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,792 |
| Name the War | 0 | - | 4.37 | 200,734 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,401 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,826 |
| Famous Families #1 | 0 | - | 4.20 | 83,392 |
| Names for Warriors | 0 | - | 4.40 | 36,785 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,075 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,916 |
| Countries by Military Spending | 0 | - | 4.93 | 176,368 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,496 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,664 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,448 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,624 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,525 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,367 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,313 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,196 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,322 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,583 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,497 |
| Animals that Start with L | 0 | - | 4.47 | 101,231 |
| Animals that Start with P | 0 | - | 4.45 | 85,625 |
| Animals that Start with S | 0 | - | 4.49 | 86,784 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,616 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,554 |
| World Cities A-Z by Clue #1 | 0 | - | 4.55 | 65,784 |
| Islands A-Z | 0 | - | 4.46 | 116,730 |
| World Cities A-Z by Clue #2 | 0 | - | 4.45 | 57,301 |
| Human Body A-Z | 0 | - | 4.51 | 128,355 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,096 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,798 |
| Africa A-Z | 0 | - | 4.57 | 46,362 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,490 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,039 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,176 |
| 14th Century A-Z | 0 | - | 4.40 | 23,712 |
| Military History A-Z | 0 | - | 4.20 | 21,034 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,009 |
| Disney A-Z | 0 | - | 4.37 | 86,196 |
| Literature by Letter - A | 0 | - | 4.23 | 31,754 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,066 |
| Companies A-Z | 0 | - | 4.30 | 42,607 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,476 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,805 |
| Geography by Letter - G | 0 | - | 4.35 | 125,445 |
| Geography by Letter - F | 0 | - | 4.27 | 137,025 |
| Geography by Letter - J | 0 | - | 4.34 | 122,143 |
| Geography by Letter - O | 0 | - | 4.37 | 128,960 |
| Geography by Letter - V | 0 | - | 4.39 | 120,853 |
| Geography by Letter - W | 0 | - | 4.39 | 114,172 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,639 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,010 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,856 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,107 |
| Geography Containing the Letter Z | 0 | - | 4.48 | 27,659 |
| Video Games A-Z | 0 | - | 4.08 | 38,680 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,065 |
| Movies that Start with A | 0 | - | 4.13 | 61,629 |
| Movies that Start with C | 0 | - | 4.30 | 61,567 |
| Movies that Start with B | 0 | - | 4.35 | 84,900 |
| Movies that Start with D | 0 | - | 4.34 | 68,215 |
| Movies that Start with E | 0 | - | 4.13 | 68,160 |
| Movies that Start with J | 0 | - | 4.18 | 75,905 |
| Movies that Start with L | 0 | - | 4.16 | 60,216 |
| Movies that Start with M | 0 | - | 4.28 | 48,052 |
| Movies that Start with N | 0 | - | 4.02 | 41,100 |
| Movies that Start with P | 0 | - | 4.25 | 53,991 |
| Movies that Start with R | 0 | - | 4.17 | 46,432 |
| Movies that Start with W | 0 | - | 4.07 | 44,124 |
| Movies that Start with T | 0 | - | 4.33 | 49,101 |
| Movies that Start with S | 0 | - | 4.35 | 56,259 |
| Movies that Start with F | 0 | - | 4.13 | 68,627 |
| Music by Letter - F | 0 | - | 4.48 | 26,815 |
| Music by Letter - A | 0 | - | 4.61 | 31,177 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,641 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,996 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,161 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,668 |
| Influential Women in History | 0 | - | 4.42 | 34,949 |
| Metals of Antiquity | 0 | - | 4.94 | 92,885 |
| Cradles of Civilization | 0 | - | 4.46 | 39,009 |
| Materials From History #1 | 0 | - | 4.56 | 50,565 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,142 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,153 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,254 |
| WWI... or WWII? | 0 | - | 4.85 | 140,591 |
| Oldest Things | 0 | - | 3.92 | 65,589 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,762 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,136 |
| Famous Explorers | 0 | - | 4.58 | 35,934 |
| Famous Empires by Description | 0 | - | 4.70 | 117,516 |
| Answers by Time Period | 0 | - | 4.63 | 55,259 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,844 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,488 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,643 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,765 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,830 |
| Middle East A-Z | 0 | - | 4.47 | 45,779 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,141 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,017 |
| Notable People of WWII | 0 | - | 4.53 | 85,312 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,411 |
| World War I Quiz | 0 | - | 4.78 | 100,239 |
| WWI A-Z | 0 | - | 4.50 | 38,018 |
| Most Important People in History | 0 | - | 3.98 | 50,381 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,056 |
| Star Wars A-Z | 0 | - | 4.46 | 87,146 |
| Monarchies of the World | 0 | - | 4.94 | 166,557 |
