| History by Letter - B | 0 | - | 4.45 | 171,223 |
| History by Letter - C | 0 | - | 4.69 | 170,257 |
| History by Letter - E | 0 | - | 4.51 | 139,810 |
| History by Letter - G | 0 | - | 4.45 | 121,411 |
| History by Letter - J | 0 | - | 4.51 | 153,198 |
| History by Letter - N | 0 | - | 4.44 | 103,368 |
| History by Letter - S | 0 | - | 4.47 | 93,651 |
| History by Letter - W | 0 | - | 4.45 | 108,700 |
| History by Letter - M | 0 | - | 4.54 | 119,072 |
| History by Letter - K | 0 | - | 4.50 | 100,806 |
| History by Letter - L | 0 | - | 4.49 | 111,481 |
| History by Letter - I | 0 | - | 4.46 | 103,657 |
| History by Letter - D | 0 | - | 4.39 | 136,854 |
| History by Letter - F | 0 | - | 4.18 | 113,665 |
| History by Letter - O | 0 | - | 4.31 | 99,031 |
| History by Letter - P | 0 | - | 4.38 | 107,320 |
| History by Letter - Q | 0 | - | 4.34 | 79,957 |
| History by Letter - R | 0 | - | 4.26 | 121,626 |
| History by Letter - T | 0 | - | 4.39 | 104,849 |
| History by Letter - U | 0 | - | 4.19 | 100,219 |
| History by Letter - V | 0 | - | 4.27 | 80,343 |
| History by Letter - Y | 0 | - | 4.27 | 86,919 |
| History by Letter - Z | 0 | - | 4.18 | 76,723 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,110 |
| History Containing the Letter X | 0 | - | 4.47 | 26,926 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,340 |
| Empires A-Z | 0 | - | 4.51 | 44,797 |
| Same Start and End Letter - History #1 | 0 | - | 4.16 | 24,661 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,534 |
| History Ending in Z | 0 | - | 4.35 | 13,450 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 128,609 |
| Geography by Letter - T | 0 | - | 4.84 | 152,366 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,574 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,799 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,949 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,227 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,856 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,700 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,876 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,356 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,696 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,343 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,339 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,117 |
| 20th Century A-Z | 0 | - | 4.50 | 53,150 |
| 19th Century A-Z | 0 | - | 4.77 | 46,719 |
| 18th Century A-Z | 0 | - | 4.54 | 42,632 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,724 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,528 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,896 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,791 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,748 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,691 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,379 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,099 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,210 |
| 16th Century A-Z | 0 | - | 4.58 | 24,373 |
| 15th Century A-Z | 0 | - | 4.49 | 23,387 |
| 17th Century A-Z | 0 | - | 4.78 | 34,161 |
| NATO Military Alphabet | 0 | - | 4.98 | 553,957 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,726 |
| Geography by Letter - A | 0 | - | 4.74 | 210,046 |
| Geography by Letter - B | 0 | - | 4.56 | 183,219 |
| Geography by Letter - H | 0 | - | 4.69 | 149,242 |
| Geography by Letter - C | 0 | - | 4.47 | 157,518 |
| Geography by Letter - D | 0 | - | 4.50 | 149,456 |
| Geography by Letter - E | 0 | - | 4.42 | 146,611 |
| Geography by Letter - I | 0 | - | 4.42 | 121,175 |
| Geography by Letter - K | 0 | - | 4.53 | 117,293 |
| Geography by Letter - L | 0 | - | 4.43 | 147,580 |
| Geography by Letter - M | 0 | - | 4.49 | 117,595 |
| Geography by Letter - N | 0 | - | 4.51 | 126,205 |
| Geography by Letter - P | 0 | - | 4.47 | 175,111 |
| Geography by Letter - R | 0 | - | 4.43 | 130,289 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,564 |
| Geography by Letter - U | 0 | - | 4.54 | 142,026 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,970 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,458 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 32,787 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,034 |
| 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 | 69,324 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,879 |
| Movies that Start with G | 0 | - | 4.48 | 68,234 |
| Movies that Start with I | 0 | - | 4.41 | 64,872 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,203 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,161 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,723 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,482 |
| Empires by Maps | 0 | - | 4.98 | 118,370 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,199 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,791 |
| Name the War | 0 | - | 4.37 | 200,729 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,400 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,825 |
| Famous Families #1 | 0 | - | 4.20 | 83,390 |
| Names for Warriors | 0 | - | 4.40 | 36,785 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,072 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,914 |
| Countries by Military Spending | 0 | - | 4.93 | 176,356 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,487 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,658 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,440 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,619 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,524 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,360 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,310 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,194 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,320 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,580 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,413 |
| Animals that Start with L | 0 | - | 4.47 | 101,226 |
| Animals that Start with P | 0 | - | 4.45 | 85,622 |
| Animals that Start with S | 0 | - | 4.49 | 86,782 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,603 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,547 |
| World Cities A-Z by Clue #1 | 0 | - | 4.55 | 65,714 |
| Islands A-Z | 0 | - | 4.46 | 116,721 |
| World Cities A-Z by Clue #2 | 0 | - | 4.45 | 57,237 |
| Human Body A-Z | 0 | - | 4.51 | 128,337 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,043 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,792 |
| Africa A-Z | 0 | - | 4.57 | 46,359 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,487 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,038 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,173 |
| 14th Century A-Z | 0 | - | 4.40 | 23,698 |
| 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 | 86,128 |
| Literature by Letter - A | 0 | - | 4.23 | 31,753 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,066 |
| Companies A-Z | 0 | - | 4.30 | 42,605 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,475 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,805 |
| Geography by Letter - G | 0 | - | 4.35 | 125,437 |
| Geography by Letter - F | 0 | - | 4.27 | 137,014 |
| Geography by Letter - J | 0 | - | 4.34 | 122,137 |
| Geography by Letter - O | 0 | - | 4.37 | 128,956 |
| Geography by Letter - V | 0 | - | 4.39 | 120,840 |
| Geography by Letter - W | 0 | - | 4.39 | 114,163 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,635 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,005 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,848 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,106 |
| Geography Containing the Letter Z | 0 | - | 4.48 | 27,658 |
| Video Games A-Z | 0 | - | 4.08 | 38,678 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,065 |
| Movies that Start with A | 0 | - | 4.13 | 61,628 |
| Movies that Start with C | 0 | - | 4.30 | 61,565 |
| Movies that Start with B | 0 | - | 4.35 | 84,898 |
| 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 | 75,904 |
| Movies that Start with L | 0 | - | 4.16 | 60,216 |
| Movies that Start with M | 0 | - | 4.28 | 48,051 |
| Movies that Start with N | 0 | - | 4.02 | 41,099 |
| Movies that Start with P | 0 | - | 4.25 | 53,991 |
| Movies that Start with R | 0 | - | 4.17 | 46,431 |
| Movies that Start with W | 0 | - | 4.07 | 44,123 |
| Movies that Start with T | 0 | - | 4.33 | 49,099 |
| Movies that Start with S | 0 | - | 4.35 | 56,255 |
| Movies that Start with F | 0 | - | 4.13 | 68,626 |
| Music by Letter - F | 0 | - | 4.48 | 26,809 |
| Music by Letter - A | 0 | - | 4.61 | 31,171 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,632 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,994 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,154 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,655 |
| Influential Women in History | 0 | - | 4.42 | 34,933 |
| Metals of Antiquity | 0 | - | 4.94 | 92,882 |
| Cradles of Civilization | 0 | - | 4.46 | 38,996 |
| Materials From History #1 | 0 | - | 4.56 | 50,556 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,129 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,140 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,225 |
| WWI... or WWII? | 0 | - | 4.85 | 140,574 |
| Oldest Things | 0 | - | 3.92 | 65,588 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,760 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,127 |
| Famous Explorers | 0 | - | 4.58 | 35,930 |
| Famous Empires by Description | 0 | - | 4.70 | 117,506 |
| Answers by Time Period | 0 | - | 4.63 | 55,254 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,842 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,486 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,640 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,757 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,829 |
| Middle East A-Z | 0 | - | 4.47 | 45,775 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,141 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,011 |
| Notable People of WWII | 0 | - | 4.53 | 85,309 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,406 |
| World War I Quiz | 0 | - | 4.78 | 100,229 |
| WWI A-Z | 0 | - | 4.50 | 38,012 |
| Most Important People in History | 0 | - | 3.98 | 50,376 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,052 |
| Star Wars A-Z | 0 | - | 4.46 | 87,139 |
| Monarchies of the World | 0 | - | 4.94 | 166,537 |
