| History by Letter - A | 0 | - | 4.51 | 152,401 |
| History by Letter - B | 0 | - | 4.45 | 171,579 |
| History by Letter - C | 0 | - | 4.70 | 170,690 |
| History by Letter - E | 0 | - | 4.51 | 140,111 |
| History by Letter - G | 0 | - | 4.46 | 121,681 |
| History by Letter - H | 0 | - | 4.45 | 136,121 |
| History by Letter - J | 0 | - | 4.51 | 153,522 |
| History by Letter - N | 0 | - | 4.45 | 103,578 |
| History by Letter - S | 0 | - | 4.47 | 93,835 |
| History by Letter - W | 0 | - | 4.45 | 108,950 |
| History by Letter - M | 0 | - | 4.54 | 119,311 |
| History by Letter - K | 0 | - | 4.50 | 101,007 |
| History by Letter - L | 0 | - | 4.50 | 111,710 |
| History by Letter - I | 0 | - | 4.46 | 103,873 |
| History by Letter - D | 0 | - | 4.39 | 137,117 |
| History by Letter - F | 0 | - | 4.18 | 113,875 |
| History by Letter - O | 0 | - | 4.32 | 99,216 |
| History by Letter - P | 0 | - | 4.39 | 107,508 |
| History by Letter - Q | 0 | - | 4.34 | 80,105 |
| History by Letter - R | 0 | - | 4.26 | 121,846 |
| History by Letter - T | 0 | - | 4.39 | 105,014 |
| History by Letter - U | 0 | - | 4.19 | 100,515 |
| History by Letter - V | 0 | - | 4.27 | 80,518 |
| History by Letter - Y | 0 | - | 4.27 | 87,052 |
| History by Letter - Z | 0 | - | 4.18 | 76,841 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,164 |
| Empires A-Z | 0 | - | 4.51 | 44,955 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,694 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,591 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,230 |
| Geography by Letter - T | 0 | - | 4.84 | 152,896 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,767 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,917 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,039 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,549 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,239 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,959 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,361 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,642 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,231 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,809 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,634 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,370 |
| 20th Century A-Z | 0 | - | 4.50 | 53,259 |
| 19th Century A-Z | 0 | - | 4.77 | 46,814 |
| 18th Century A-Z | 0 | - | 4.54 | 42,696 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,750 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,102 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,853 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,557 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,198 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,223 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,400 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,015 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,475 |
| 16th Century A-Z | 0 | - | 4.58 | 24,434 |
| 15th Century A-Z | 0 | - | 4.49 | 23,430 |
| 14th Century A-Z | 0 | - | 4.41 | 23,848 |
| 17th Century A-Z | 0 | - | 4.78 | 34,219 |
| NATO Military Alphabet | 0 | - | 4.98 | 556,106 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 799,229 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,897 |
| Geography by Letter - A | 0 | - | 4.74 | 210,760 |
| Geography by Letter - B | 0 | - | 4.56 | 183,720 |
| Geography by Letter - H | 0 | - | 4.69 | 149,599 |
| Geography by Letter - C | 0 | - | 4.47 | 157,947 |
| Geography by Letter - D | 0 | - | 4.50 | 149,854 |
| Geography by Letter - E | 0 | - | 4.42 | 146,978 |
| Geography by Letter - I | 0 | - | 4.42 | 121,466 |
| Geography by Letter - K | 0 | - | 4.53 | 117,594 |
| Geography by Letter - L | 0 | - | 4.43 | 147,913 |
| Geography by Letter - M | 0 | - | 4.49 | 117,906 |
| Geography by Letter - N | 0 | - | 4.51 | 126,527 |
| Geography by Letter - P | 0 | - | 4.47 | 175,451 |
| Geography by Letter - R | 0 | - | 4.44 | 130,699 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,936 |
| Geography by Letter - U | 0 | - | 4.53 | 142,403 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,031 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,179 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,762 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,243 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,430 |
| Movies that Start with G | 0 | - | 4.48 | 68,354 |
| Movies that Start with I | 0 | - | 4.41 | 65,002 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,660 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,131 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,598 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,443 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,896 |
| Name the War | 0 | - | 4.37 | 201,122 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,459 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,920 |
| Famous Families #1 | 0 | - | 4.20 | 83,474 |
| Names for Warriors | 0 | - | 4.40 | 36,848 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,960 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,005 |
| Empires by Maps | 0 | - | 4.98 | 119,120 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,677 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,921 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,604 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,401 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,191 |
| The 15th Century | 0 | - | 4.43 | 51,115 |
| The 14th Century | 0 | - | 4.55 | 49,217 |
| The 13th Century | 0 | - | 4.48 | 43,194 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,000 |
| Military History A-Z | 0 | - | 4.20 | 21,086 |
| Ye Olde Professions | 0 | - | 4.67 | 156,017 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,271 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,392 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,628 |
| Countries by Military Spending | 0 | - | 4.93 | 176,834 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,308,882 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,678 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,995 |
| Animals that Start with L | 0 | - | 4.47 | 101,647 |
| Animals that Start with P | 0 | - | 4.45 | 85,901 |
| Animals that Start with S | 0 | - | 4.49 | 87,090 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,885 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,913 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,094 |
| Islands A-Z | 0 | - | 4.46 | 117,040 |
| World Cities A-Z by Clue #2 | 0 | - | 4.40 | 58,412 |
| Human Body A-Z | 0 | - | 4.51 | 128,811 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,037 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,979 |
| Africa A-Z | 0 | - | 4.57 | 46,468 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 56,928 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,125 |
| Metals of Antiquity | 0 | - | 4.94 | 93,084 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,373 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,243 |
| WWI... or WWII? | 0 | - | 4.85 | 141,223 |
| Oldest Things | 0 | - | 3.92 | 65,617 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,786 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,918 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,560 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,056 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,806 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,262 |
| Disney A-Z | 0 | - | 4.37 | 86,766 |
| Literature by Letter - A | 0 | - | 4.23 | 31,816 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,089 |
| Companies A-Z | 0 | - | 4.30 | 42,643 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,949 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,534 |
| Geography by Letter - G | 0 | - | 4.35 | 125,736 |
| Geography by Letter - F | 0 | - | 4.27 | 137,333 |
| Geography by Letter - J | 0 | - | 4.34 | 122,407 |
| Geography by Letter - O | 0 | - | 4.37 | 129,251 |
| Geography by Letter - V | 0 | - | 4.39 | 121,208 |
| Geography by Letter - W | 0 | - | 4.39 | 114,421 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,900 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,245 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,079 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,160 |
| Video Games A-Z | 0 | - | 4.08 | 38,797 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,136 |
| Middle East A-Z | 0 | - | 4.47 | 45,888 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,219 |
| Movies that Start with A | 0 | - | 4.13 | 61,732 |
| Movies that Start with C | 0 | - | 4.30 | 61,676 |
| Movies that Start with B | 0 | - | 4.36 | 85,030 |
| Movies that Start with D | 0 | - | 4.34 | 68,311 |
| Movies that Start with E | 0 | - | 4.13 | 68,240 |
| Movies that Start with J | 0 | - | 4.18 | 76,007 |
| Movies that Start with L | 0 | - | 4.16 | 60,288 |
| Movies that Start with M | 0 | - | 4.28 | 48,127 |
| Movies that Start with N | 0 | - | 4.02 | 41,161 |
| Movies that Start with P | 0 | - | 4.25 | 54,062 |
| Movies that Start with R | 0 | - | 4.17 | 46,522 |
| Movies that Start with W | 0 | - | 4.07 | 44,182 |
| Movies that Start with T | 0 | - | 4.34 | 49,188 |
| Movies that Start with S | 0 | - | 4.35 | 56,342 |
| Movies that Start with F | 0 | - | 4.13 | 68,724 |
| Music by Letter - F | 0 | - | 4.48 | 26,895 |
| Music by Letter - A | 0 | - | 4.61 | 31,261 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,517 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,001 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,252 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,547 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,047 |
| Influential Women in History | 0 | - | 4.42 | 35,250 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,106 |
| Cradles of Civilization | 0 | - | 4.46 | 39,321 |
| Materials From History #1 | 0 | - | 4.56 | 51,289 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,389 |
| Notable People of WWII | 0 | - | 4.53 | 85,435 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,638 |
| World War I Quiz | 0 | - | 4.78 | 100,483 |
| WWI A-Z | 0 | - | 4.50 | 38,119 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,453 |
| Famous Explorers | 0 | - | 4.58 | 36,034 |
| Famous Empires by Description | 0 | - | 4.73 | 118,112 |
| Answers by Time Period | 0 | - | 4.63 | 55,384 |
| History of France | 0 | - | 4.59 | 56,498 |
| Star Wars A-Z | 0 | - | 4.46 | 87,487 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 77,285 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,108 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,172 |
