| History by Letter - A | 0 | - | 4.51 | 153,077 |
| History by Letter - B | 0 | - | 4.45 | 172,364 |
| History by Letter - C | 0 | - | 4.70 | 171,644 |
| History by Letter - E | 0 | - | 4.51 | 140,741 |
| History by Letter - G | 0 | - | 4.46 | 122,239 |
| History by Letter - H | 0 | - | 4.45 | 136,843 |
| History by Letter - J | 0 | - | 4.51 | 154,157 |
| History by Letter - N | 0 | - | 4.45 | 104,164 |
| History by Letter - S | 0 | - | 4.47 | 94,463 |
| History by Letter - W | 0 | - | 4.45 | 109,636 |
| History by Letter - M | 0 | - | 4.54 | 119,943 |
| History by Letter - K | 0 | - | 4.50 | 101,448 |
| History by Letter - L | 0 | - | 4.50 | 112,175 |
| History by Letter - I | 0 | - | 4.46 | 104,325 |
| History by Letter - D | 0 | - | 4.40 | 137,882 |
| History by Letter - F | 0 | - | 4.18 | 114,532 |
| History by Letter - O | 0 | - | 4.32 | 99,589 |
| History by Letter - P | 0 | - | 4.36 | 107,938 |
| History by Letter - Q | 0 | - | 4.34 | 80,408 |
| History by Letter - R | 0 | - | 4.26 | 122,291 |
| History by Letter - T | 0 | - | 4.39 | 105,362 |
| History by Letter - U | 0 | - | 4.19 | 100,882 |
| History by Letter - V | 0 | - | 4.27 | 80,839 |
| History by Letter - Y | 0 | - | 4.27 | 87,352 |
| History by Letter - Z | 0 | - | 4.20 | 77,123 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,238 |
| Empires A-Z | 0 | - | 4.52 | 45,142 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,743 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,670 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 131,812 |
| Geography by Letter - T | 0 | - | 4.84 | 153,914 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,013 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,102 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,181 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,193 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,900 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,327 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,327 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,025 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,987 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,456 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,387 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,716 |
| 20th Century A-Z | 0 | - | 4.50 | 53,712 |
| 19th Century A-Z | 0 | - | 4.77 | 47,277 |
| 18th Century A-Z | 0 | - | 4.54 | 43,163 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,050 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,392 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,949 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,630 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,887 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,408 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,728 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,204 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,624 |
| 16th Century A-Z | 0 | - | 4.58 | 24,891 |
| 15th Century A-Z | 0 | - | 4.49 | 23,923 |
| 14th Century A-Z | 0 | - | 4.41 | 24,373 |
| 17th Century A-Z | 0 | - | 4.78 | 34,631 |
| NATO Military Alphabet | 0 | - | 4.98 | 559,467 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 802,131 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,985 |
| Geography by Letter - A | 0 | - | 4.74 | 211,651 |
| Geography by Letter - B | 0 | - | 4.55 | 184,682 |
| Geography by Letter - H | 0 | - | 4.69 | 150,369 |
| Geography by Letter - C | 0 | - | 4.47 | 158,768 |
| Geography by Letter - D | 0 | - | 4.50 | 150,582 |
| Geography by Letter - E | 0 | - | 4.42 | 147,674 |
| Geography by Letter - I | 0 | - | 4.42 | 122,069 |
| Geography by Letter - K | 0 | - | 4.53 | 118,408 |
| Geography by Letter - L | 0 | - | 4.43 | 148,576 |
| Geography by Letter - M | 0 | - | 4.49 | 118,692 |
| Geography by Letter - N | 0 | - | 4.51 | 127,256 |
| Geography by Letter - P | 0 | - | 4.47 | 176,090 |
| Geography by Letter - R | 0 | - | 4.43 | 131,697 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,602 |
| Geography by Letter - U | 0 | - | 4.53 | 143,145 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,149 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,638 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,317 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,909 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,358 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,579 |
| Movies that Start with G | 0 | - | 4.49 | 68,525 |
| Movies that Start with I | 0 | - | 4.41 | 65,159 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,231 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,752 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,939 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,635 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,979 |
| Name the War | 0 | - | 4.37 | 201,588 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,533 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,040 |
| Famous Families #1 | 0 | - | 4.20 | 83,588 |
| Names for Warriors | 0 | - | 4.40 | 36,920 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,017 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,030 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,721 |
| Empires by Maps | 0 | - | 4.98 | 120,294 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,068 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,256 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,729 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,677 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,361 |
| The 15th Century | 0 | - | 4.43 | 51,217 |
| The 14th Century | 0 | - | 4.55 | 49,306 |
| The 13th Century | 0 | - | 4.48 | 43,278 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,118 |
| Military History A-Z | 0 | - | 4.20 | 21,152 |
| Ye Olde Professions | 0 | - | 4.67 | 156,696 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,353 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,465 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,681 |
| Countries by Military Spending | 0 | - | 4.93 | 177,617 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,315,556 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,039 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,698 |
| Animals that Start with L | 0 | - | 4.47 | 101,875 |
| Animals that Start with P | 0 | - | 4.45 | 86,103 |
| Animals that Start with S | 0 | - | 4.49 | 87,315 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,390 |
| Geography by Letter on the World Map - C | 0 | - | 4.79 | 117,479 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,078 |
| Islands A-Z | 0 | - | 4.46 | 124,088 |
| Human Body A-Z | 0 | - | 4.51 | 129,123 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,514 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,569 |
| Africa A-Z | 0 | - | 4.57 | 46,595 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,693 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,275 |
| Metals of Antiquity | 0 | - | 4.95 | 93,401 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,667 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,352 |
| WWI... or WWII? | 0 | - | 4.85 | 142,092 |
| Oldest Things | 0 | - | 3.92 | 65,653 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,818 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,643 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,137 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,264 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,065 |
| Disney A-Z | 0 | - | 4.37 | 87,065 |
| Literature by Letter - A | 0 | - | 4.24 | 32,068 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,259 |
| Companies A-Z | 0 | - | 4.30 | 42,692 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,119 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,623 |
| Geography by Letter - G | 0 | - | 4.33 | 126,346 |
| Geography by Letter - F | 0 | - | 4.27 | 137,889 |
| Geography by Letter - J | 0 | - | 4.34 | 122,962 |
| Geography by Letter - O | 0 | - | 4.37 | 129,794 |
| Geography by Letter - V | 0 | - | 4.39 | 121,793 |
| Geography by Letter - W | 0 | - | 4.39 | 114,888 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,554 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,691 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,520 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,257 |
| Video Games A-Z | 0 | - | 4.08 | 38,971 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,249 |
| Middle East A-Z | 0 | - | 4.47 | 46,001 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,350 |
| Movies that Start with A | 0 | - | 4.13 | 61,864 |
| Movies that Start with C | 0 | - | 4.30 | 61,836 |
| Movies that Start with B | 0 | - | 4.36 | 85,207 |
| Movies that Start with D | 0 | - | 4.34 | 68,433 |
| Movies that Start with E | 0 | - | 4.13 | 68,366 |
| Movies that Start with J | 0 | - | 4.18 | 76,158 |
| Movies that Start with L | 0 | - | 4.16 | 60,419 |
| Movies that Start with M | 0 | - | 4.28 | 48,223 |
| Movies that Start with N | 0 | - | 4.02 | 41,254 |
| Movies that Start with P | 0 | - | 4.25 | 54,152 |
| Movies that Start with R | 0 | - | 4.17 | 46,639 |
| Movies that Start with W | 0 | - | 4.07 | 44,265 |
| Movies that Start with T | 0 | - | 4.34 | 49,297 |
| Movies that Start with S | 0 | - | 4.35 | 56,464 |
| Movies that Start with F | 0 | - | 4.13 | 68,850 |
| Music by Letter - F | 0 | - | 4.48 | 26,990 |
| Music by Letter - A | 0 | - | 4.61 | 31,372 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,943 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,487 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,627 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,094 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,548 |
| Influential Women in History | 0 | - | 4.42 | 35,553 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,218 |
| Cradles of Civilization | 0 | - | 4.46 | 39,608 |
| Materials From History #1 | 0 | - | 4.56 | 51,518 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,356 |
| Notable People of WWII | 0 | - | 4.53 | 85,896 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,936 |
| World War I Quiz | 0 | - | 4.78 | 101,226 |
| WWI A-Z | 0 | - | 4.50 | 38,307 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,843 |
| Famous Explorers | 0 | - | 4.58 | 36,146 |
| Famous Empires by Description | 0 | - | 4.73 | 118,406 |
| Answers by Time Period | 0 | - | 4.63 | 55,556 |
| History of France | 0 | - | 4.59 | 56,932 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,730 |
| Star Wars A-Z | 0 | - | 4.46 | 88,169 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,441 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,347 |
