| History by Letter - A | 0 | - | 4.51 | 153,352 |
| History by Letter - B | 0 | - | 4.45 | 172,662 |
| History by Letter - C | 0 | - | 4.70 | 171,939 |
| History by Letter - E | 0 | - | 4.51 | 140,976 |
| History by Letter - G | 0 | - | 4.46 | 122,454 |
| History by Letter - H | 0 | - | 4.45 | 137,057 |
| History by Letter - J | 0 | - | 4.51 | 154,436 |
| History by Letter - N | 0 | - | 4.45 | 104,320 |
| History by Letter - S | 0 | - | 4.47 | 94,615 |
| History by Letter - W | 0 | - | 4.45 | 109,811 |
| History by Letter - M | 0 | - | 4.54 | 120,135 |
| History by Letter - K | 0 | - | 4.50 | 101,613 |
| History by Letter - L | 0 | - | 4.50 | 112,375 |
| History by Letter - I | 0 | - | 4.46 | 104,649 |
| History by Letter - D | 0 | - | 4.40 | 138,103 |
| History by Letter - F | 0 | - | 4.18 | 114,712 |
| History by Letter - O | 0 | - | 4.32 | 99,730 |
| History by Letter - P | 0 | - | 4.36 | 108,075 |
| History by Letter - Q | 0 | - | 4.34 | 80,503 |
| History by Letter - R | 0 | - | 4.26 | 122,439 |
| History by Letter - T | 0 | - | 4.39 | 105,486 |
| History by Letter - U | 0 | - | 4.19 | 101,008 |
| History by Letter - V | 0 | - | 4.27 | 80,938 |
| History by Letter - Y | 0 | - | 4.27 | 87,459 |
| History by Letter - Z | 0 | - | 4.20 | 77,206 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,281 |
| Empires A-Z | 0 | - | 4.52 | 45,251 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,755 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,708 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 153,482 |
| Geography by Letter - T | 0 | - | 4.84 | 154,272 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,133 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,180 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,234 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,419 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,182 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,716 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,949 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,460 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,661 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,184 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,678 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,051 |
| 20th Century A-Z | 0 | - | 4.50 | 53,805 |
| 19th Century A-Z | 0 | - | 4.77 | 47,339 |
| 18th Century A-Z | 0 | - | 4.54 | 43,220 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,170 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,509 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,986 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,549 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,210 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,480 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,867 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,396 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,690 |
| 16th Century A-Z | 0 | - | 4.58 | 24,932 |
| 15th Century A-Z | 0 | - | 4.49 | 23,947 |
| 14th Century A-Z | 0 | - | 4.41 | 24,418 |
| 17th Century A-Z | 0 | - | 4.78 | 34,667 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,025 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,029 |
| Geography by Letter - A | 0 | - | 4.74 | 211,981 |
| Geography by Letter - B | 0 | - | 4.56 | 184,976 |
| Geography by Letter - H | 0 | - | 4.69 | 150,620 |
| Geography by Letter - C | 0 | - | 4.47 | 159,009 |
| Geography by Letter - D | 0 | - | 4.50 | 150,824 |
| Geography by Letter - E | 0 | - | 4.42 | 147,886 |
| Geography by Letter - I | 0 | - | 4.42 | 122,240 |
| Geography by Letter - K | 0 | - | 4.53 | 118,596 |
| Geography by Letter - L | 0 | - | 4.43 | 148,784 |
| Geography by Letter - M | 0 | - | 4.49 | 118,866 |
| Geography by Letter - N | 0 | - | 4.51 | 127,432 |
| Geography by Letter - P | 0 | - | 4.47 | 176,316 |
| Geography by Letter - R | 0 | - | 4.43 | 131,980 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,852 |
| Geography by Letter - U | 0 | - | 4.53 | 143,385 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,201 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,684 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,395 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,968 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,393 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,649 |
| Movies that Start with G | 0 | - | 4.49 | 68,600 |
| Movies that Start with I | 0 | - | 4.41 | 65,221 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,559 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,089 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,729 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,017 |
| Name the War | 0 | - | 4.37 | 201,808 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,562 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,104 |
| Famous Families #1 | 0 | - | 4.20 | 83,643 |
| Names for Warriors | 0 | - | 4.40 | 36,957 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,076 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,059 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,016 |
| Empires by Maps | 0 | - | 4.98 | 120,807 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,422 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,487 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,816 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,815 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,445 |
| The 15th Century | 0 | - | 4.43 | 51,258 |
| The 14th Century | 0 | - | 4.55 | 49,346 |
| The 13th Century | 0 | - | 4.48 | 43,313 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,166 |
| Military History A-Z | 0 | - | 4.20 | 21,187 |
| Ye Olde Professions | 0 | - | 4.67 | 156,951 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,397 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,496 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,706 |
| Countries by Military Spending | 0 | - | 4.93 | 178,270 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,318,780 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,207 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,035 |
| Animals that Start with L | 0 | - | 4.47 | 102,189 |
| Animals that Start with P | 0 | - | 4.45 | 86,211 |
| Animals that Start with S | 0 | - | 4.49 | 87,432 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,589 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 117,742 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,362 |
| Islands A-Z | 0 | - | 4.46 | 125,409 |
| Human Body A-Z | 0 | - | 4.51 | 129,314 |
| Asian Cities A-Z by Clue | 0 | - | 4.50 | 41,172 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,698 |
| Africa A-Z | 0 | - | 4.57 | 46,653 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,905 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,351 |
| Metals of Antiquity | 0 | - | 4.95 | 93,553 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,818 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,391 |
| WWI... or WWII? | 0 | - | 4.85 | 142,500 |
| Oldest Things | 0 | - | 3.92 | 65,668 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,829 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,668 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,165 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,369 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,501 |
| Disney A-Z | 0 | - | 4.37 | 87,222 |
| Literature by Letter - A | 0 | - | 4.24 | 32,188 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,322 |
| Companies A-Z | 0 | - | 4.30 | 42,721 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,218 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,656 |
| Geography by Letter - G | 0 | - | 4.33 | 126,534 |
| Geography by Letter - F | 0 | - | 4.27 | 138,092 |
| Geography by Letter - J | 0 | - | 4.34 | 123,155 |
| Geography by Letter - O | 0 | - | 4.37 | 129,982 |
| Geography by Letter - V | 0 | - | 4.39 | 122,014 |
| Geography by Letter - W | 0 | - | 4.39 | 115,046 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,746 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,803 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,665 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,299 |
| Video Games A-Z | 0 | - | 4.08 | 39,052 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,298 |
| Middle East A-Z | 0 | - | 4.47 | 46,111 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,408 |
| Movies that Start with A | 0 | - | 4.13 | 61,931 |
| Movies that Start with C | 0 | - | 4.30 | 61,923 |
| Movies that Start with B | 0 | - | 4.36 | 85,294 |
| Movies that Start with D | 0 | - | 4.34 | 68,492 |
| Movies that Start with E | 0 | - | 4.13 | 68,425 |
| Movies that Start with J | 0 | - | 4.18 | 76,229 |
| Movies that Start with L | 0 | - | 4.16 | 60,469 |
| Movies that Start with M | 0 | - | 4.28 | 48,272 |
| Movies that Start with N | 0 | - | 4.02 | 41,290 |
| Movies that Start with P | 0 | - | 4.25 | 54,184 |
| Movies that Start with R | 0 | - | 4.17 | 46,687 |
| Movies that Start with W | 0 | - | 4.07 | 44,285 |
| Movies that Start with T | 0 | - | 4.34 | 49,346 |
| Movies that Start with S | 0 | - | 4.35 | 56,514 |
| Movies that Start with F | 0 | - | 4.13 | 68,916 |
| Music by Letter - F | 0 | - | 4.48 | 27,039 |
| Music by Letter - A | 0 | - | 4.61 | 31,424 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,149 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,722 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,799 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,356 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,027 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,821 |
| Influential Women in History | 0 | - | 4.42 | 35,775 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,282 |
| Cradles of Civilization | 0 | - | 4.46 | 39,839 |
| Materials From History #1 | 0 | - | 4.56 | 51,705 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,207 |
| Notable People of WWII | 0 | - | 4.53 | 85,990 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,264 |
| World War I Quiz | 0 | - | 4.78 | 101,410 |
| WWI A-Z | 0 | - | 4.51 | 38,406 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,093 |
| Famous Explorers | 0 | - | 4.58 | 36,212 |
| Famous Empires by Description | 0 | - | 4.73 | 118,577 |
| Answers by Time Period | 0 | - | 4.64 | 55,653 |
| History of France | 0 | - | 4.59 | 57,205 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,753 |
| Star Wars A-Z | 0 | - | 4.46 | 88,379 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,523 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,476 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,392 |
