| History by Letter - A | 0 | - | 4.51 | 153,133 |
| History by Letter - B | 0 | - | 4.45 | 172,420 |
| History by Letter - C | 0 | - | 4.70 | 171,687 |
| History by Letter - E | 0 | - | 4.51 | 140,780 |
| History by Letter - G | 0 | - | 4.46 | 122,266 |
| History by Letter - H | 0 | - | 4.45 | 136,873 |
| History by Letter - J | 0 | - | 4.51 | 154,196 |
| History by Letter - N | 0 | - | 4.45 | 104,189 |
| History by Letter - S | 0 | - | 4.47 | 94,479 |
| History by Letter - W | 0 | - | 4.45 | 109,663 |
| History by Letter - M | 0 | - | 4.54 | 119,973 |
| History by Letter - K | 0 | - | 4.50 | 101,471 |
| History by Letter - L | 0 | - | 4.50 | 112,211 |
| History by Letter - I | 0 | - | 4.46 | 104,352 |
| History by Letter - D | 0 | - | 4.40 | 137,916 |
| History by Letter - F | 0 | - | 4.18 | 114,549 |
| History by Letter - O | 0 | - | 4.32 | 99,612 |
| History by Letter - P | 0 | - | 4.36 | 107,954 |
| History by Letter - Q | 0 | - | 4.34 | 80,423 |
| History by Letter - R | 0 | - | 4.26 | 122,309 |
| History by Letter - T | 0 | - | 4.39 | 105,386 |
| History by Letter - U | 0 | - | 4.19 | 100,900 |
| History by Letter - V | 0 | - | 4.27 | 80,854 |
| History by Letter - Y | 0 | - | 4.27 | 87,375 |
| History by Letter - Z | 0 | - | 4.20 | 77,143 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,242 |
| Empires A-Z | 0 | - | 4.52 | 45,154 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,746 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,673 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 145,697 |
| Geography by Letter - T | 0 | - | 4.84 | 153,968 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,031 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,112 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,192 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,233 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,938 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,484 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,520 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,176 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,195 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,724 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,425 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,816 |
| 20th Century A-Z | 0 | - | 4.50 | 53,716 |
| 19th Century A-Z | 0 | - | 4.77 | 47,286 |
| 18th Century A-Z | 0 | - | 4.54 | 43,168 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,066 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,403 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,954 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,979 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,934 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,421 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,751 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,278 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,630 |
| 16th Century A-Z | 0 | - | 4.58 | 24,895 |
| 15th Century A-Z | 0 | - | 4.49 | 23,924 |
| 14th Century A-Z | 0 | - | 4.41 | 24,376 |
| 17th Century A-Z | 0 | - | 4.78 | 34,633 |
| NATO Military Alphabet | 0 | - | 4.98 | 559,682 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 802,336 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,988 |
| Geography by Letter - A | 0 | - | 4.74 | 211,706 |
| Geography by Letter - B | 0 | - | 4.55 | 184,732 |
| Geography by Letter - H | 0 | - | 4.69 | 150,409 |
| Geography by Letter - C | 0 | - | 4.47 | 158,807 |
| Geography by Letter - D | 0 | - | 4.50 | 150,624 |
| Geography by Letter - E | 0 | - | 4.42 | 147,708 |
| Geography by Letter - I | 0 | - | 4.42 | 122,096 |
| Geography by Letter - K | 0 | - | 4.53 | 118,431 |
| Geography by Letter - L | 0 | - | 4.43 | 148,608 |
| Geography by Letter - M | 0 | - | 4.49 | 118,721 |
| Geography by Letter - N | 0 | - | 4.51 | 127,286 |
| Geography by Letter - P | 0 | - | 4.47 | 176,128 |
| Geography by Letter - R | 0 | - | 4.43 | 131,749 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,651 |
| Geography by Letter - U | 0 | - | 4.53 | 143,184 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,159 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,648 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,329 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,913 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,361 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,586 |
| Movies that Start with G | 0 | - | 4.49 | 68,540 |
| Movies that Start with I | 0 | - | 4.41 | 65,164 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,278 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,790 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,966 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,647 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,984 |
| Name the War | 0 | - | 4.37 | 201,628 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,537 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,055 |
| Famous Families #1 | 0 | - | 4.20 | 83,596 |
| Names for Warriors | 0 | - | 4.40 | 36,927 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,023 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,038 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,751 |
| Empires by Maps | 0 | - | 4.98 | 120,351 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,094 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,283 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,736 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,703 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,369 |
| The 15th Century | 0 | - | 4.43 | 51,220 |
| The 14th Century | 0 | - | 4.55 | 49,311 |
| The 13th Century | 0 | - | 4.48 | 43,284 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,125 |
| Military History A-Z | 0 | - | 4.20 | 21,157 |
| Ye Olde Professions | 0 | - | 4.67 | 156,721 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,360 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,471 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,682 |
| Countries by Military Spending | 0 | - | 4.93 | 177,671 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,316,034 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,078 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,752 |
| Animals that Start with L | 0 | - | 4.47 | 101,889 |
| Animals that Start with P | 0 | - | 4.45 | 86,116 |
| Animals that Start with S | 0 | - | 4.49 | 87,330 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,430 |
| Geography by Letter on the World Map - C | 0 | - | 4.79 | 117,522 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,112 |
| Islands A-Z | 0 | - | 4.46 | 124,290 |
| Human Body A-Z | 0 | - | 4.51 | 129,152 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,537 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,591 |
| Africa A-Z | 0 | - | 4.57 | 46,597 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,729 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,286 |
| Metals of Antiquity | 0 | - | 4.95 | 93,417 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,680 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,354 |
| WWI... or WWII? | 0 | - | 4.85 | 142,164 |
| Oldest Things | 0 | - | 3.92 | 65,653 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,820 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,645 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,142 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,284 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,120 |
| Disney A-Z | 0 | - | 4.37 | 87,085 |
| Literature by Letter - A | 0 | - | 4.24 | 32,101 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,271 |
| Companies A-Z | 0 | - | 4.30 | 42,694 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,133 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,625 |
| Geography by Letter - G | 0 | - | 4.33 | 126,374 |
| Geography by Letter - F | 0 | - | 4.27 | 137,928 |
| Geography by Letter - J | 0 | - | 4.34 | 122,987 |
| Geography by Letter - O | 0 | - | 4.37 | 129,824 |
| Geography by Letter - V | 0 | - | 4.39 | 121,825 |
| Geography by Letter - W | 0 | - | 4.39 | 114,911 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,589 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,706 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,542 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,259 |
| Video Games A-Z | 0 | - | 4.08 | 38,983 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,251 |
| Middle East A-Z | 0 | - | 4.47 | 46,008 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,356 |
| Movies that Start with A | 0 | - | 4.13 | 61,877 |
| Movies that Start with C | 0 | - | 4.30 | 61,845 |
| Movies that Start with B | 0 | - | 4.36 | 85,226 |
| Movies that Start with D | 0 | - | 4.34 | 68,441 |
| Movies that Start with E | 0 | - | 4.13 | 68,375 |
| Movies that Start with J | 0 | - | 4.18 | 76,166 |
| Movies that Start with L | 0 | - | 4.16 | 60,431 |
| Movies that Start with M | 0 | - | 4.28 | 48,234 |
| Movies that Start with N | 0 | - | 4.02 | 41,256 |
| Movies that Start with P | 0 | - | 4.25 | 54,156 |
| Movies that Start with R | 0 | - | 4.17 | 46,648 |
| Movies that Start with W | 0 | - | 4.07 | 44,268 |
| Movies that Start with T | 0 | - | 4.34 | 49,303 |
| Movies that Start with S | 0 | - | 4.35 | 56,471 |
| Movies that Start with F | 0 | - | 4.13 | 68,857 |
| Music by Letter - F | 0 | - | 4.48 | 26,998 |
| Music by Letter - A | 0 | - | 4.61 | 31,382 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,964 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,518 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,642 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,122 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,583 |
| Influential Women in History | 0 | - | 4.42 | 35,567 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,229 |
| Cradles of Civilization | 0 | - | 4.46 | 39,620 |
| Materials From History #1 | 0 | - | 4.56 | 51,535 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,469 |
| Notable People of WWII | 0 | - | 4.53 | 85,907 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,954 |
| World War I Quiz | 0 | - | 4.78 | 101,250 |
| WWI A-Z | 0 | - | 4.50 | 38,319 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,865 |
| Famous Explorers | 0 | - | 4.58 | 36,151 |
| Famous Empires by Description | 0 | - | 4.73 | 118,428 |
| Answers by Time Period | 0 | - | 4.63 | 55,561 |
| History of France | 0 | - | 4.59 | 56,941 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,734 |
| Star Wars A-Z | 0 | - | 4.46 | 88,208 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,457 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,363 |
