| History by Letter - A | 0 | - | 4.51 | 153,287 |
| History by Letter - B | 0 | - | 4.45 | 172,597 |
| History by Letter - C | 0 | - | 4.70 | 171,862 |
| History by Letter - E | 0 | - | 4.51 | 140,930 |
| History by Letter - G | 0 | - | 4.46 | 122,399 |
| History by Letter - H | 0 | - | 4.45 | 137,016 |
| History by Letter - J | 0 | - | 4.51 | 154,373 |
| History by Letter - N | 0 | - | 4.45 | 104,280 |
| History by Letter - S | 0 | - | 4.47 | 94,574 |
| History by Letter - W | 0 | - | 4.45 | 109,757 |
| History by Letter - M | 0 | - | 4.54 | 120,082 |
| History by Letter - K | 0 | - | 4.50 | 101,574 |
| History by Letter - L | 0 | - | 4.50 | 112,326 |
| History by Letter - I | 0 | - | 4.46 | 104,610 |
| History by Letter - D | 0 | - | 4.40 | 138,050 |
| History by Letter - F | 0 | - | 4.18 | 114,673 |
| History by Letter - O | 0 | - | 4.32 | 99,696 |
| History by Letter - P | 0 | - | 4.36 | 108,032 |
| History by Letter - Q | 0 | - | 4.34 | 80,477 |
| History by Letter - R | 0 | - | 4.26 | 122,410 |
| History by Letter - T | 0 | - | 4.39 | 105,452 |
| History by Letter - U | 0 | - | 4.19 | 100,975 |
| History by Letter - V | 0 | - | 4.27 | 80,912 |
| History by Letter - Y | 0 | - | 4.27 | 87,435 |
| History by Letter - Z | 0 | - | 4.20 | 77,192 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,273 |
| Empires A-Z | 0 | - | 4.52 | 45,220 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,752 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,695 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 152,775 |
| Geography by Letter - T | 0 | - | 4.84 | 154,185 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,093 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,153 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,220 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,367 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,112 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,635 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,816 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,364 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,501 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,043 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,607 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,965 |
| 20th Century A-Z | 0 | - | 4.50 | 53,777 |
| 19th Century A-Z | 0 | - | 4.77 | 47,328 |
| 18th Century A-Z | 0 | - | 4.54 | 43,205 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,126 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,468 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,976 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,388 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,125 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,465 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,836 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,358 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,678 |
| 16th Century A-Z | 0 | - | 4.58 | 24,925 |
| 15th Century A-Z | 0 | - | 4.49 | 23,941 |
| 14th Century A-Z | 0 | - | 4.41 | 24,408 |
| 17th Century A-Z | 0 | - | 4.78 | 34,655 |
| NATO Military Alphabet | 0 | - | 4.98 | 560,660 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.80 | 802,917 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,021 |
| Geography by Letter - A | 0 | - | 4.74 | 211,902 |
| Geography by Letter - B | 0 | - | 4.56 | 184,913 |
| Geography by Letter - H | 0 | - | 4.69 | 150,550 |
| Geography by Letter - C | 0 | - | 4.47 | 158,943 |
| Geography by Letter - D | 0 | - | 4.50 | 150,758 |
| Geography by Letter - E | 0 | - | 4.42 | 147,831 |
| Geography by Letter - I | 0 | - | 4.42 | 122,191 |
| Geography by Letter - K | 0 | - | 4.53 | 118,549 |
| Geography by Letter - L | 0 | - | 4.43 | 148,722 |
| Geography by Letter - M | 0 | - | 4.49 | 118,818 |
| Geography by Letter - N | 0 | - | 4.51 | 127,382 |
| Geography by Letter - P | 0 | - | 4.47 | 176,251 |
| Geography by Letter - R | 0 | - | 4.43 | 131,916 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,797 |
| Geography by Letter - U | 0 | - | 4.53 | 143,325 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,185 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,680 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,373 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,953 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,380 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,627 |
| Movies that Start with G | 0 | - | 4.49 | 68,583 |
| Movies that Start with I | 0 | - | 4.41 | 65,201 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,458 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,054 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,705 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,007 |
| Name the War | 0 | - | 4.37 | 201,741 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,556 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,089 |
| Famous Families #1 | 0 | - | 4.20 | 83,626 |
| Names for Warriors | 0 | - | 4.40 | 36,946 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,064 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,048 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,932 |
| Empires by Maps | 0 | - | 4.98 | 120,677 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,384 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,435 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,801 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,777 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,430 |
| The 15th Century | 0 | - | 4.43 | 51,245 |
| The 14th Century | 0 | - | 4.55 | 49,335 |
| The 13th Century | 0 | - | 4.48 | 43,300 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,152 |
| Military History A-Z | 0 | - | 4.20 | 21,176 |
| Ye Olde Professions | 0 | - | 4.67 | 156,882 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,387 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,490 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,697 |
| Countries by Military Spending | 0 | - | 4.93 | 177,955 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,317,903 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,169 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,922 |
| Animals that Start with L | 0 | - | 4.47 | 102,165 |
| Animals that Start with P | 0 | - | 4.45 | 86,188 |
| Animals that Start with S | 0 | - | 4.49 | 87,399 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,542 |
| Geography by Letter on the World Map - C | 0 | - | 4.80 | 117,672 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,281 |
| Islands A-Z | 0 | - | 4.46 | 125,110 |
| Human Body A-Z | 0 | - | 4.51 | 129,240 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 37,632 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,665 |
| Africa A-Z | 0 | - | 4.57 | 46,634 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,834 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,329 |
| Metals of Antiquity | 0 | - | 4.95 | 93,499 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,778 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,375 |
| WWI... or WWII? | 0 | - | 4.85 | 142,382 |
| Oldest Things | 0 | - | 3.92 | 65,666 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,825 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,662 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,161 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,345 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,387 |
| Disney A-Z | 0 | - | 4.37 | 87,184 |
| Literature by Letter - A | 0 | - | 4.24 | 32,172 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,309 |
| Companies A-Z | 0 | - | 4.30 | 42,708 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,186 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,651 |
| Geography by Letter - G | 0 | - | 4.33 | 126,483 |
| Geography by Letter - F | 0 | - | 4.27 | 138,043 |
| Geography by Letter - J | 0 | - | 4.34 | 123,105 |
| Geography by Letter - O | 0 | - | 4.37 | 129,931 |
| Geography by Letter - V | 0 | - | 4.39 | 121,960 |
| Geography by Letter - W | 0 | - | 4.39 | 115,004 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,703 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,782 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,631 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,285 |
| Video Games A-Z | 0 | - | 4.08 | 39,036 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,285 |
| Middle East A-Z | 0 | - | 4.47 | 46,057 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,383 |
| Movies that Start with A | 0 | - | 4.13 | 61,913 |
| Movies that Start with C | 0 | - | 4.30 | 61,902 |
| Movies that Start with B | 0 | - | 4.36 | 85,267 |
| Movies that Start with D | 0 | - | 4.34 | 68,475 |
| Movies that Start with E | 0 | - | 4.13 | 68,405 |
| Movies that Start with J | 0 | - | 4.18 | 76,207 |
| Movies that Start with L | 0 | - | 4.16 | 60,457 |
| Movies that Start with M | 0 | - | 4.28 | 48,260 |
| Movies that Start with N | 0 | - | 4.02 | 41,280 |
| Movies that Start with P | 0 | - | 4.25 | 54,175 |
| Movies that Start with R | 0 | - | 4.17 | 46,675 |
| Movies that Start with W | 0 | - | 4.07 | 44,281 |
| Movies that Start with T | 0 | - | 4.34 | 49,337 |
| Movies that Start with S | 0 | - | 4.35 | 56,504 |
| Movies that Start with F | 0 | - | 4.13 | 68,894 |
| Music by Letter - F | 0 | - | 4.48 | 27,024 |
| Music by Letter - A | 0 | - | 4.61 | 31,413 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,094 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,665 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,754 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,276 |
| Brand Logos That Start With M | 0 | - | 4.40 | 62,965 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,745 |
| Influential Women in History | 0 | - | 4.42 | 35,732 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,265 |
| Cradles of Civilization | 0 | - | 4.46 | 39,789 |
| Materials From History #1 | 0 | - | 4.56 | 51,663 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,960 |
| Notable People of WWII | 0 | - | 4.53 | 85,970 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,223 |
| World War I Quiz | 0 | - | 4.78 | 101,355 |
| WWI A-Z | 0 | - | 4.51 | 38,378 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 146,037 |
| Famous Explorers | 0 | - | 4.58 | 36,195 |
| Famous Empires by Description | 0 | - | 4.73 | 118,524 |
| Answers by Time Period | 0 | - | 4.64 | 55,629 |
| History of France | 0 | - | 4.59 | 57,108 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,751 |
| Star Wars A-Z | 0 | - | 4.46 | 88,322 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,509 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,445 |
