| History by Letter - A | 0 | - | 4.51 | 152,565 |
| History by Letter - B | 0 | - | 4.45 | 171,799 |
| History by Letter - C | 0 | - | 4.70 | 170,939 |
| History by Letter - E | 0 | - | 4.51 | 140,295 |
| History by Letter - G | 0 | - | 4.46 | 121,821 |
| History by Letter - H | 0 | - | 4.45 | 136,284 |
| History by Letter - J | 0 | - | 4.51 | 153,731 |
| History by Letter - N | 0 | - | 4.45 | 103,715 |
| History by Letter - S | 0 | - | 4.47 | 94,022 |
| History by Letter - W | 0 | - | 4.45 | 109,095 |
| History by Letter - M | 0 | - | 4.54 | 119,602 |
| History by Letter - K | 0 | - | 4.50 | 101,146 |
| History by Letter - L | 0 | - | 4.50 | 111,858 |
| History by Letter - I | 0 | - | 4.46 | 104,011 |
| History by Letter - D | 0 | - | 4.39 | 137,282 |
| History by Letter - F | 0 | - | 4.18 | 114,010 |
| History by Letter - O | 0 | - | 4.32 | 99,328 |
| History by Letter - P | 0 | - | 4.39 | 107,648 |
| History by Letter - Q | 0 | - | 4.34 | 80,195 |
| History by Letter - R | 0 | - | 4.26 | 121,985 |
| History by Letter - T | 0 | - | 4.39 | 105,119 |
| History by Letter - U | 0 | - | 4.19 | 100,638 |
| History by Letter - V | 0 | - | 4.27 | 80,625 |
| History by Letter - Y | 0 | - | 4.27 | 87,140 |
| History by Letter - Z | 0 | - | 4.19 | 76,918 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,194 |
| Empires A-Z | 0 | - | 4.51 | 45,024 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,713 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,619 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,685 |
| Geography by Letter - T | 0 | - | 4.84 | 153,360 |
| People in History A-Z #1 | 0 | - | 4.61 | 98,855 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,980 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,081 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,874 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,556 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,082 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,602 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,750 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,496 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,038 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,828 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,510 |
| 20th Century A-Z | 0 | - | 4.50 | 53,352 |
| 19th Century A-Z | 0 | - | 4.77 | 46,907 |
| 18th Century A-Z | 0 | - | 4.54 | 42,786 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,861 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,227 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,882 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,962 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,475 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,315 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,561 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,088 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,531 |
| 16th Century A-Z | 0 | - | 4.58 | 24,538 |
| 15th Century A-Z | 0 | - | 4.49 | 23,536 |
| 14th Century A-Z | 0 | - | 4.41 | 23,969 |
| 17th Century A-Z | 0 | - | 4.78 | 34,311 |
| NATO Military Alphabet | 0 | - | 4.98 | 557,306 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 800,015 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,933 |
| Geography by Letter - A | 0 | - | 4.74 | 211,166 |
| Geography by Letter - B | 0 | - | 4.56 | 184,224 |
| Geography by Letter - H | 0 | - | 4.69 | 149,989 |
| Geography by Letter - C | 0 | - | 4.47 | 158,347 |
| Geography by Letter - D | 0 | - | 4.50 | 150,189 |
| Geography by Letter - E | 0 | - | 4.42 | 147,295 |
| Geography by Letter - I | 0 | - | 4.42 | 121,746 |
| Geography by Letter - K | 0 | - | 4.53 | 117,865 |
| Geography by Letter - L | 0 | - | 4.43 | 148,211 |
| Geography by Letter - M | 0 | - | 4.49 | 118,360 |
| Geography by Letter - N | 0 | - | 4.51 | 126,784 |
| Geography by Letter - P | 0 | - | 4.47 | 175,725 |
| Geography by Letter - R | 0 | - | 4.43 | 131,079 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,231 |
| Geography by Letter - U | 0 | - | 4.53 | 142,726 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,077 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,580 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,240 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,819 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,288 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,479 |
| Movies that Start with G | 0 | - | 4.49 | 68,427 |
| Movies that Start with I | 0 | - | 4.41 | 65,074 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,878 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,337 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,749 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,524 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,929 |
| Name the War | 0 | - | 4.37 | 201,290 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,486 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,974 |
| Famous Families #1 | 0 | - | 4.20 | 83,525 |
| Names for Warriors | 0 | - | 4.40 | 36,877 |
| Famous Firsts #2 | 0 | - | 4.01 | 80,964 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,984 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,318 |
| Empires by Maps | 0 | - | 4.98 | 119,636 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,814 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,042 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,648 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,511 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,277 |
| The 15th Century | 0 | - | 4.43 | 51,159 |
| The 14th Century | 0 | - | 4.55 | 49,257 |
| The 13th Century | 0 | - | 4.48 | 43,228 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,045 |
| Military History A-Z | 0 | - | 4.20 | 21,110 |
| Ye Olde Professions | 0 | - | 4.67 | 156,203 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,309 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,422 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,648 |
| Countries by Military Spending | 0 | - | 4.93 | 177,110 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,311,629 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,788 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,223 |
| Animals that Start with L | 0 | - | 4.47 | 101,725 |
| Animals that Start with P | 0 | - | 4.45 | 85,976 |
| Animals that Start with S | 0 | - | 4.49 | 87,166 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,104 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 117,153 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,599 |
| Islands A-Z | 0 | - | 4.46 | 117,233 |
| Human Body A-Z | 0 | - | 4.51 | 128,934 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,266 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,082 |
| Africa A-Z | 0 | - | 4.57 | 46,526 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,414 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,184 |
| Metals of Antiquity | 0 | - | 4.94 | 93,197 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,497 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,285 |
| WWI... or WWII? | 0 | - | 4.85 | 141,603 |
| Oldest Things | 0 | - | 3.92 | 65,635 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,804 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,608 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,093 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,094 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,559 |
| Disney A-Z | 0 | - | 4.37 | 86,868 |
| Literature by Letter - A | 0 | - | 4.23 | 31,853 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,113 |
| Companies A-Z | 0 | - | 4.30 | 42,665 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,017 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,573 |
| Geography by Letter - G | 0 | - | 4.35 | 126,008 |
| Geography by Letter - F | 0 | - | 4.27 | 137,590 |
| Geography by Letter - J | 0 | - | 4.34 | 122,661 |
| Geography by Letter - O | 0 | - | 4.37 | 129,481 |
| Geography by Letter - V | 0 | - | 4.39 | 121,460 |
| Geography by Letter - W | 0 | - | 4.39 | 114,628 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,106 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,442 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,272 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,204 |
| Video Games A-Z | 0 | - | 4.08 | 38,857 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,184 |
| Middle East A-Z | 0 | - | 4.47 | 45,937 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,265 |
| Movies that Start with A | 0 | - | 4.13 | 61,796 |
| Movies that Start with C | 0 | - | 4.30 | 61,750 |
| Movies that Start with B | 0 | - | 4.36 | 85,105 |
| Movies that Start with D | 0 | - | 4.34 | 68,362 |
| Movies that Start with E | 0 | - | 4.13 | 68,294 |
| Movies that Start with J | 0 | - | 4.18 | 76,077 |
| Movies that Start with L | 0 | - | 4.16 | 60,345 |
| Movies that Start with M | 0 | - | 4.28 | 48,165 |
| Movies that Start with N | 0 | - | 4.02 | 41,207 |
| Movies that Start with P | 0 | - | 4.25 | 54,099 |
| Movies that Start with R | 0 | - | 4.17 | 46,572 |
| Movies that Start with W | 0 | - | 4.07 | 44,217 |
| Movies that Start with T | 0 | - | 4.34 | 49,230 |
| Movies that Start with S | 0 | - | 4.35 | 56,392 |
| Movies that Start with F | 0 | - | 4.13 | 68,773 |
| Music by Letter - F | 0 | - | 4.48 | 26,938 |
| Music by Letter - A | 0 | - | 4.61 | 31,307 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,684 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,194 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,402 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,750 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,242 |
| Influential Women in History | 0 | - | 4.42 | 35,393 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,154 |
| Cradles of Civilization | 0 | - | 4.46 | 39,463 |
| Materials From History #1 | 0 | - | 4.56 | 51,392 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,079 |
| Notable People of WWII | 0 | - | 4.53 | 85,522 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,778 |
| World War I Quiz | 0 | - | 4.78 | 101,047 |
| WWI A-Z | 0 | - | 4.50 | 38,212 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,609 |
| Famous Explorers | 0 | - | 4.58 | 36,084 |
| Famous Empires by Description | 0 | - | 4.73 | 118,237 |
| Answers by Time Period | 0 | - | 4.64 | 55,457 |
| History of France | 0 | - | 4.59 | 56,686 |
| Star Wars A-Z | 0 | - | 4.46 | 87,842 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,341 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,183 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,232 |
