| History by Letter - A | 0 | - | 4.51 | 153,498 |
| History by Letter - B | 0 | - | 4.45 | 172,806 |
| History by Letter - C | 0 | - | 4.70 | 172,102 |
| History by Letter - E | 0 | - | 4.51 | 141,092 |
| History by Letter - G | 0 | - | 4.46 | 122,548 |
| History by Letter - H | 0 | - | 4.45 | 137,184 |
| History by Letter - J | 0 | - | 4.51 | 154,561 |
| History by Letter - N | 0 | - | 4.45 | 104,414 |
| History by Letter - S | 0 | - | 4.47 | 94,719 |
| History by Letter - W | 0 | - | 4.45 | 109,921 |
| History by Letter - M | 0 | - | 4.54 | 120,227 |
| History by Letter - K | 0 | - | 4.50 | 101,704 |
| History by Letter - L | 0 | - | 4.50 | 112,482 |
| History by Letter - I | 0 | - | 4.46 | 104,743 |
| History by Letter - D | 0 | - | 4.40 | 138,227 |
| History by Letter - F | 0 | - | 4.18 | 114,802 |
| History by Letter - O | 0 | - | 4.32 | 99,811 |
| History by Letter - P | 0 | - | 4.36 | 108,174 |
| History by Letter - Q | 0 | - | 4.34 | 80,573 |
| History by Letter - R | 0 | - | 4.26 | 122,533 |
| History by Letter - T | 0 | - | 4.39 | 105,571 |
| History by Letter - U | 0 | - | 4.19 | 101,087 |
| History by Letter - V | 0 | - | 4.27 | 81,021 |
| History by Letter - Y | 0 | - | 4.27 | 87,536 |
| History by Letter - Z | 0 | - | 4.20 | 77,272 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,296 |
| Empires A-Z | 0 | - | 4.52 | 45,304 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,770 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,731 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,347 |
| Geography by Letter - T | 0 | - | 4.84 | 154,546 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,231 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,242 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,280 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,626 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,442 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,840 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,161 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,605 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,903 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,415 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,834 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,182 |
| 20th Century A-Z | 0 | - | 4.50 | 53,855 |
| 19th Century A-Z | 0 | - | 4.77 | 47,380 |
| 18th Century A-Z | 0 | - | 4.54 | 43,246 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,251 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,615 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,019 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,876 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,410 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,532 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,951 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,474 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,735 |
| 16th Century A-Z | 0 | - | 4.58 | 24,956 |
| 15th Century A-Z | 0 | - | 4.49 | 23,969 |
| 14th Century A-Z | 0 | - | 4.41 | 24,442 |
| 17th Century A-Z | 0 | - | 4.78 | 34,696 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,734 |
| NATO Military Alphabet | 0 | - | 4.98 | 562,043 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,056 |
| Geography by Letter - A | 0 | - | 4.74 | 212,253 |
| Geography by Letter - B | 0 | - | 4.56 | 185,268 |
| Geography by Letter - H | 0 | - | 4.69 | 150,841 |
| Geography by Letter - C | 0 | - | 4.47 | 159,259 |
| Geography by Letter - D | 0 | - | 4.50 | 151,273 |
| Geography by Letter - E | 0 | - | 4.42 | 148,114 |
| Geography by Letter - I | 0 | - | 4.42 | 122,409 |
| Geography by Letter - K | 0 | - | 4.53 | 118,766 |
| Geography by Letter - L | 0 | - | 4.43 | 149,161 |
| Geography by Letter - M | 0 | - | 4.49 | 119,056 |
| Geography by Letter - N | 0 | - | 4.51 | 127,603 |
| Geography by Letter - P | 0 | - | 4.47 | 176,498 |
| Geography by Letter - R | 0 | - | 4.43 | 132,186 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,027 |
| Geography by Letter - U | 0 | - | 4.53 | 143,548 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,251 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,716 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,439 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,018 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,433 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,700 |
| Movies that Start with G | 0 | - | 4.49 | 68,694 |
| Movies that Start with I | 0 | - | 4.41 | 65,291 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,160 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,771 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,053 |
| Name the War | 0 | - | 4.37 | 202,458 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,587 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,332 |
| Famous Families #1 | 0 | - | 4.20 | 83,669 |
| Names for Warriors | 0 | - | 4.40 | 36,992 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,321 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,093 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,227 |
| Empires by Maps | 0 | - | 4.98 | 121,099 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,544 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,613 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,865 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,926 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,491 |
| The 15th Century | 0 | - | 4.43 | 51,277 |
| The 14th Century | 0 | - | 4.55 | 49,359 |
| The 13th Century | 0 | - | 4.48 | 43,333 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,194 |
| Military History A-Z | 0 | - | 4.20 | 21,199 |
| Ye Olde Professions | 0 | - | 4.63 | 157,118 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,419 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,515 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,724 |
| Countries by Military Spending | 0 | - | 4.93 | 178,522 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,320,863 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,364 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,271 |
| Animals that Start with L | 0 | - | 4.47 | 102,289 |
| Animals that Start with P | 0 | - | 4.45 | 86,338 |
| Animals that Start with S | 0 | - | 4.49 | 87,540 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,772 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,164 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,486 |
| Islands A-Z | 0 | - | 4.46 | 126,073 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,341 |
| Human Body A-Z | 0 | - | 4.51 | 129,428 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,600 |
| Africa A-Z | 0 | - | 4.57 | 46,703 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,030 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,395 |
| Metals of Antiquity | 0 | - | 4.95 | 93,660 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,906 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,420 |
| WWI... or WWII? | 0 | - | 4.85 | 142,740 |
| Oldest Things | 0 | - | 3.92 | 65,681 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,838 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,868 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,182 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,442 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,307 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,855 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,889 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,512 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,165 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,949 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,816 |
| Disney A-Z | 0 | - | 4.37 | 87,313 |
| Literature by Letter - A | 0 | - | 4.24 | 32,253 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,354 |
| Companies A-Z | 0 | - | 4.30 | 42,731 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,282 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,687 |
| Geography by Letter - G | 0 | - | 4.33 | 126,728 |
| Geography by Letter - F | 0 | - | 4.27 | 138,412 |
| Geography by Letter - J | 0 | - | 4.34 | 123,323 |
| Geography by Letter - O | 0 | - | 4.37 | 130,146 |
| Geography by Letter - V | 0 | - | 4.39 | 122,185 |
| Geography by Letter - W | 0 | - | 4.39 | 115,183 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,882 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,930 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,804 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,318 |
| Video Games A-Z | 0 | - | 4.05 | 39,119 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,331 |
| Middle East A-Z | 0 | - | 4.47 | 46,170 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,450 |
| Movies that Start with A | 0 | - | 4.13 | 62,026 |
| Movies that Start with C | 0 | - | 4.30 | 62,016 |
| Movies that Start with B | 0 | - | 4.36 | 85,551 |
| Movies that Start with D | 0 | - | 4.34 | 68,572 |
| Movies that Start with E | 0 | - | 4.13 | 68,501 |
| Movies that Start with J | 0 | - | 4.18 | 76,297 |
| Movies that Start with L | 0 | - | 4.16 | 60,516 |
| Movies that Start with M | 0 | - | 4.28 | 48,323 |
| Movies that Start with N | 0 | - | 4.02 | 41,328 |
| Movies that Start with P | 0 | - | 4.25 | 54,223 |
| Movies that Start with R | 0 | - | 4.17 | 46,735 |
| Movies that Start with W | 0 | - | 4.07 | 44,324 |
| Movies that Start with T | 0 | - | 4.34 | 49,392 |
| Movies that Start with S | 0 | - | 4.35 | 56,564 |
| Movies that Start with F | 0 | - | 4.13 | 68,988 |
| Music by Letter - F | 0 | - | 4.48 | 27,065 |
| Music by Letter - A | 0 | - | 4.61 | 31,458 |
| Influential Women in History | 0 | - | 4.42 | 36,146 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,307 |
| Cradles of Civilization | 0 | - | 4.46 | 40,108 |
| Materials From History #1 | 0 | - | 4.56 | 51,885 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,876 |
| Notable People of WWII | 0 | - | 4.53 | 86,054 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,344 |
| World War I Quiz | 0 | - | 4.78 | 101,499 |
| WWI A-Z | 0 | - | 4.51 | 38,463 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,271 |
| Famous Explorers | 0 | - | 4.58 | 36,271 |
| Famous Empires by Description | 0 | - | 4.73 | 118,735 |
| Answers by Time Period | 0 | - | 4.64 | 55,731 |
| History of France | 0 | - | 4.61 | 57,341 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,760 |
| Star Wars A-Z | 0 | - | 4.46 | 88,499 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,580 |
| Musical Acts by Letter - M | 0 | - | 4.15 | 93,588 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,432 |
