| History by Letter - A | 0 | - | 4.51 | 152,953 |
| History by Letter - B | 0 | - | 4.45 | 172,211 |
| History by Letter - C | 0 | - | 4.70 | 171,493 |
| History by Letter - E | 0 | - | 4.51 | 140,616 |
| History by Letter - G | 0 | - | 4.46 | 122,132 |
| History by Letter - H | 0 | - | 4.45 | 136,637 |
| History by Letter - J | 0 | - | 4.51 | 154,030 |
| History by Letter - N | 0 | - | 4.45 | 104,085 |
| History by Letter - S | 0 | - | 4.47 | 94,381 |
| History by Letter - W | 0 | - | 4.45 | 109,540 |
| History by Letter - M | 0 | - | 4.54 | 119,849 |
| History by Letter - K | 0 | - | 4.50 | 101,369 |
| History by Letter - L | 0 | - | 4.50 | 112,088 |
| History by Letter - I | 0 | - | 4.46 | 104,236 |
| History by Letter - D | 0 | - | 4.40 | 137,768 |
| History by Letter - F | 0 | - | 4.18 | 114,333 |
| History by Letter - O | 0 | - | 4.32 | 99,520 |
| History by Letter - P | 0 | - | 4.39 | 107,869 |
| History by Letter - Q | 0 | - | 4.34 | 80,347 |
| History by Letter - R | 0 | - | 4.26 | 122,211 |
| History by Letter - T | 0 | - | 4.39 | 105,295 |
| History by Letter - U | 0 | - | 4.19 | 100,805 |
| History by Letter - V | 0 | - | 4.27 | 80,773 |
| History by Letter - Y | 0 | - | 4.27 | 87,291 |
| History by Letter - Z | 0 | - | 4.20 | 77,068 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,227 |
| History Containing the Letter X | 0 | - | 4.47 | 27,030 |
| Empires A-Z | 0 | - | 4.52 | 45,116 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,735 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,654 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 130,125 |
| Geography by Letter - T | 0 | - | 4.84 | 153,822 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,970 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,078 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,162 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,138 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,832 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,276 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,235 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,968 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,875 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,352 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,307 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,672 |
| 20th Century A-Z | 0 | - | 4.50 | 53,685 |
| 19th Century A-Z | 0 | - | 4.77 | 47,253 |
| 18th Century A-Z | 0 | - | 4.54 | 43,138 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,015 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,357 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,937 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,481 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,801 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,385 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,684 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,183 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,601 |
| 16th Century A-Z | 0 | - | 4.58 | 24,872 |
| 15th Century A-Z | 0 | - | 4.49 | 23,907 |
| 14th Century A-Z | 0 | - | 4.41 | 24,350 |
| 17th Century A-Z | 0 | - | 4.78 | 34,610 |
| NATO Military Alphabet | 0 | - | 4.98 | 558,913 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 801,657 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,977 |
| Geography by Letter - A | 0 | - | 4.74 | 211,555 |
| Geography by Letter - B | 0 | - | 4.56 | 184,601 |
| Geography by Letter - H | 0 | - | 4.69 | 150,315 |
| Geography by Letter - C | 0 | - | 4.47 | 158,695 |
| Geography by Letter - D | 0 | - | 4.50 | 150,522 |
| Geography by Letter - E | 0 | - | 4.42 | 147,605 |
| Geography by Letter - I | 0 | - | 4.42 | 122,014 |
| Geography by Letter - K | 0 | - | 4.53 | 118,364 |
| Geography by Letter - L | 0 | - | 4.43 | 148,522 |
| Geography by Letter - M | 0 | - | 4.49 | 118,647 |
| Geography by Letter - N | 0 | - | 4.51 | 127,203 |
| Geography by Letter - P | 0 | - | 4.47 | 176,027 |
| Geography by Letter - R | 0 | - | 4.43 | 131,615 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,546 |
| Geography by Letter - U | 0 | - | 4.53 | 143,079 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,136 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,628 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,297 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,891 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,347 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,561 |
| Movies that Start with G | 0 | - | 4.49 | 68,493 |
| Movies that Start with I | 0 | - | 4.41 | 65,131 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,138 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,642 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,891 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,620 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,966 |
| Name the War | 0 | - | 4.37 | 201,507 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,525 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,024 |
| Famous Families #1 | 0 | - | 4.20 | 83,580 |
| Names for Warriors | 0 | - | 4.40 | 36,910 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,010 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,020 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,637 |
| Empires by Maps | 0 | - | 4.98 | 120,117 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,000 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,203 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,712 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,635 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,342 |
| The 15th Century | 0 | - | 4.43 | 51,206 |
| The 14th Century | 0 | - | 4.55 | 49,297 |
| The 13th Century | 0 | - | 4.48 | 43,264 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,105 |
| Military History A-Z | 0 | - | 4.20 | 21,145 |
| Ye Olde Professions | 0 | - | 4.67 | 156,624 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,340 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,455 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,672 |
| Countries by Military Spending | 0 | - | 4.93 | 177,481 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,314,575 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,960 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,509 |
| Animals that Start with L | 0 | - | 4.47 | 101,810 |
| Animals that Start with P | 0 | - | 4.45 | 86,048 |
| Animals that Start with S | 0 | - | 4.49 | 87,250 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,326 |
| Geography by Letter on the World Map - C | 0 | - | 4.79 | 117,406 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,010 |
| Islands A-Z | 0 | - | 4.45 | 123,454 |
| Human Body A-Z | 0 | - | 4.51 | 129,089 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,457 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,524 |
| Africa A-Z | 0 | - | 4.57 | 46,578 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,627 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,249 |
| Metals of Antiquity | 0 | - | 4.95 | 93,356 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,629 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,336 |
| WWI... or WWII? | 0 | - | 4.85 | 141,977 |
| Oldest Things | 0 | - | 3.92 | 65,648 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,814 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,638 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,130 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,217 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,939 |
| Disney A-Z | 0 | - | 4.37 | 87,008 |
| Literature by Letter - A | 0 | - | 4.23 | 32,010 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,216 |
| Companies A-Z | 0 | - | 4.30 | 42,688 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,096 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,617 |
| Geography by Letter - G | 0 | - | 4.33 | 126,297 |
| Geography by Letter - F | 0 | - | 4.27 | 137,834 |
| Geography by Letter - J | 0 | - | 4.34 | 122,915 |
| Geography by Letter - O | 0 | - | 4.37 | 129,744 |
| Geography by Letter - V | 0 | - | 4.39 | 121,746 |
| Geography by Letter - W | 0 | - | 4.39 | 114,852 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,500 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,660 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,478 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,241 |
| Video Games A-Z | 0 | - | 4.08 | 38,950 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,232 |
| Middle East A-Z | 0 | - | 4.47 | 45,982 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,331 |
| Movies that Start with A | 0 | - | 4.13 | 61,841 |
| Movies that Start with C | 0 | - | 4.30 | 61,815 |
| Movies that Start with B | 0 | - | 4.36 | 85,175 |
| Movies that Start with D | 0 | - | 4.34 | 68,411 |
| Movies that Start with E | 0 | - | 4.13 | 68,345 |
| Movies that Start with J | 0 | - | 4.18 | 76,131 |
| Movies that Start with L | 0 | - | 4.16 | 60,393 |
| Movies that Start with M | 0 | - | 4.28 | 48,206 |
| Movies that Start with N | 0 | - | 4.02 | 41,238 |
| Movies that Start with P | 0 | - | 4.25 | 54,137 |
| Movies that Start with R | 0 | - | 4.17 | 46,622 |
| Movies that Start with W | 0 | - | 4.07 | 44,250 |
| Movies that Start with T | 0 | - | 4.34 | 49,272 |
| Movies that Start with S | 0 | - | 4.35 | 56,445 |
| Movies that Start with F | 0 | - | 4.13 | 68,824 |
| Music by Letter - F | 0 | - | 4.48 | 26,981 |
| Music by Letter - A | 0 | - | 4.61 | 31,353 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,879 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,425 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,576 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,006 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,466 |
| Influential Women in History | 0 | - | 4.42 | 35,521 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,203 |
| Cradles of Civilization | 0 | - | 4.46 | 39,579 |
| Materials From History #1 | 0 | - | 4.56 | 51,493 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,843 |
| Notable People of WWII | 0 | - | 4.53 | 85,863 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,895 |
| World War I Quiz | 0 | - | 4.78 | 101,173 |
| WWI A-Z | 0 | - | 4.50 | 38,288 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,777 |
| Famous Explorers | 0 | - | 4.58 | 36,128 |
| Famous Empires by Description | 0 | - | 4.73 | 118,367 |
| Answers by Time Period | 0 | - | 4.63 | 55,531 |
| History of France | 0 | - | 4.59 | 56,882 |
| Star Wars A-Z | 0 | - | 4.46 | 88,094 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,423 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,314 |
