| History by Letter - A | 0 | - | 4.51 | 153,058 |
| History by Letter - B | 0 | - | 4.45 | 172,341 |
| History by Letter - C | 0 | - | 4.70 | 171,627 |
| History by Letter - E | 0 | - | 4.51 | 140,724 |
| History by Letter - G | 0 | - | 4.46 | 122,218 |
| History by Letter - H | 0 | - | 4.45 | 136,820 |
| History by Letter - J | 0 | - | 4.51 | 154,133 |
| History by Letter - N | 0 | - | 4.45 | 104,152 |
| History by Letter - S | 0 | - | 4.47 | 94,450 |
| History by Letter - W | 0 | - | 4.45 | 109,617 |
| History by Letter - M | 0 | - | 4.54 | 119,924 |
| History by Letter - K | 0 | - | 4.50 | 101,432 |
| History by Letter - L | 0 | - | 4.50 | 112,155 |
| History by Letter - I | 0 | - | 4.46 | 104,306 |
| History by Letter - D | 0 | - | 4.40 | 137,867 |
| History by Letter - F | 0 | - | 4.18 | 114,514 |
| History by Letter - O | 0 | - | 4.32 | 99,574 |
| History by Letter - P | 0 | - | 4.39 | 107,923 |
| History by Letter - Q | 0 | - | 4.34 | 80,398 |
| History by Letter - R | 0 | - | 4.26 | 122,276 |
| History by Letter - T | 0 | - | 4.39 | 105,348 |
| History by Letter - U | 0 | - | 4.19 | 100,863 |
| History by Letter - V | 0 | - | 4.27 | 80,828 |
| History by Letter - Y | 0 | - | 4.27 | 87,341 |
| History by Letter - Z | 0 | - | 4.20 | 77,115 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,235 |
| Empires A-Z | 0 | - | 4.52 | 45,138 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,741 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,669 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 130,213 |
| Geography by Letter - T | 0 | - | 4.84 | 153,884 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,000 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,095 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,175 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,182 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,887 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,307 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,285 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,007 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,952 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,425 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,373 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,701 |
| 20th Century A-Z | 0 | - | 4.50 | 53,704 |
| 19th Century A-Z | 0 | - | 4.77 | 47,267 |
| 18th Century A-Z | 0 | - | 4.54 | 43,154 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,040 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,386 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,944 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,575 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,872 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,399 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,718 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,198 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,620 |
| 16th Century A-Z | 0 | - | 4.58 | 24,884 |
| 15th Century A-Z | 0 | - | 4.49 | 23,918 |
| 14th Century A-Z | 0 | - | 4.41 | 24,368 |
| 17th Century A-Z | 0 | - | 4.78 | 34,624 |
| NATO Military Alphabet | 0 | - | 4.98 | 559,348 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 802,006 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,983 |
| Geography by Letter - A | 0 | - | 4.74 | 211,626 |
| Geography by Letter - B | 0 | - | 4.56 | 184,662 |
| Geography by Letter - H | 0 | - | 4.69 | 150,353 |
| Geography by Letter - C | 0 | - | 4.47 | 158,752 |
| Geography by Letter - D | 0 | - | 4.50 | 150,565 |
| Geography by Letter - E | 0 | - | 4.42 | 147,657 |
| Geography by Letter - I | 0 | - | 4.42 | 122,054 |
| Geography by Letter - K | 0 | - | 4.53 | 118,402 |
| Geography by Letter - L | 0 | - | 4.43 | 148,561 |
| Geography by Letter - M | 0 | - | 4.49 | 118,677 |
| Geography by Letter - N | 0 | - | 4.51 | 127,237 |
| Geography by Letter - P | 0 | - | 4.47 | 176,071 |
| Geography by Letter - R | 0 | - | 4.43 | 131,673 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,583 |
| Geography by Letter - U | 0 | - | 4.53 | 143,124 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,148 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,632 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,314 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,904 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,355 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,576 |
| Movies that Start with G | 0 | - | 4.49 | 68,518 |
| Movies that Start with I | 0 | - | 4.41 | 65,152 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,206 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,734 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,928 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,633 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,978 |
| Name the War | 0 | - | 4.37 | 201,565 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,533 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,038 |
| Famous Families #1 | 0 | - | 4.20 | 83,586 |
| Names for Warriors | 0 | - | 4.40 | 36,919 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,015 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,026 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,702 |
| Empires by Maps | 0 | - | 4.98 | 120,253 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,049 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,246 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,727 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,660 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,354 |
| The 15th Century | 0 | - | 4.43 | 51,214 |
| The 14th Century | 0 | - | 4.55 | 49,304 |
| The 13th Century | 0 | - | 4.48 | 43,274 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,115 |
| Military History A-Z | 0 | - | 4.20 | 21,148 |
| Ye Olde Professions | 0 | - | 4.67 | 156,673 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,349 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,462 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,679 |
| Countries by Military Spending | 0 | - | 4.93 | 177,588 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,315,305 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,016 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,667 |
| Animals that Start with L | 0 | - | 4.47 | 101,868 |
| Animals that Start with P | 0 | - | 4.45 | 86,094 |
| Animals that Start with S | 0 | - | 4.49 | 87,305 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,376 |
| Geography by Letter on the World Map - C | 0 | - | 4.79 | 117,462 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,062 |
| Islands A-Z | 0 | - | 4.45 | 123,928 |
| Human Body A-Z | 0 | - | 4.51 | 129,118 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,497 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,561 |
| Africa A-Z | 0 | - | 4.57 | 46,591 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,674 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,272 |
| Metals of Antiquity | 0 | - | 4.95 | 93,389 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,657 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,347 |
| WWI... or WWII? | 0 | - | 4.85 | 142,065 |
| Oldest Things | 0 | - | 3.92 | 65,652 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,817 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,642 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,135 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,251 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,029 |
| Disney A-Z | 0 | - | 4.37 | 87,049 |
| Literature by Letter - A | 0 | - | 4.23 | 32,038 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,238 |
| Companies A-Z | 0 | - | 4.30 | 42,691 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,111 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,619 |
| Geography by Letter - G | 0 | - | 4.33 | 126,335 |
| Geography by Letter - F | 0 | - | 4.27 | 137,874 |
| Geography by Letter - J | 0 | - | 4.34 | 122,949 |
| Geography by Letter - O | 0 | - | 4.37 | 129,780 |
| Geography by Letter - V | 0 | - | 4.39 | 121,776 |
| Geography by Letter - W | 0 | - | 4.39 | 114,880 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,542 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,682 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,507 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,249 |
| Video Games A-Z | 0 | - | 4.08 | 38,966 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,246 |
| Middle East A-Z | 0 | - | 4.47 | 46,001 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,347 |
| Movies that Start with A | 0 | - | 4.13 | 61,857 |
| Movies that Start with C | 0 | - | 4.30 | 61,831 |
| Movies that Start with B | 0 | - | 4.36 | 85,200 |
| Movies that Start with D | 0 | - | 4.34 | 68,431 |
| Movies that Start with E | 0 | - | 4.13 | 68,364 |
| Movies that Start with J | 0 | - | 4.18 | 76,156 |
| Movies that Start with L | 0 | - | 4.16 | 60,411 |
| Movies that Start with M | 0 | - | 4.28 | 48,219 |
| Movies that Start with N | 0 | - | 4.02 | 41,250 |
| Movies that Start with P | 0 | - | 4.25 | 54,148 |
| Movies that Start with R | 0 | - | 4.17 | 46,634 |
| Movies that Start with W | 0 | - | 4.07 | 44,260 |
| Movies that Start with T | 0 | - | 4.34 | 49,291 |
| Movies that Start with S | 0 | - | 4.35 | 56,459 |
| Movies that Start with F | 0 | - | 4.13 | 68,841 |
| Music by Letter - F | 0 | - | 4.48 | 26,989 |
| Music by Letter - A | 0 | - | 4.61 | 31,369 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,924 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,468 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,610 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,071 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,533 |
| Influential Women in History | 0 | - | 4.42 | 35,542 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,216 |
| Cradles of Civilization | 0 | - | 4.46 | 39,602 |
| Materials From History #1 | 0 | - | 4.56 | 51,510 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,187 |
| Notable People of WWII | 0 | - | 4.53 | 85,889 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,927 |
| World War I Quiz | 0 | - | 4.78 | 101,216 |
| WWI A-Z | 0 | - | 4.50 | 38,303 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,830 |
| Famous Explorers | 0 | - | 4.58 | 36,141 |
| Famous Empires by Description | 0 | - | 4.73 | 118,395 |
| Answers by Time Period | 0 | - | 4.63 | 55,550 |
| History of France | 0 | - | 4.59 | 56,921 |
| Star Wars A-Z | 0 | - | 4.46 | 88,156 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,437 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,336 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,312 |
