| History by Letter - A | 0 | - | 4.51 | 152,404 |
| History by Letter - B | 0 | - | 4.45 | 171,586 |
| History by Letter - C | 0 | - | 4.70 | 170,699 |
| History by Letter - E | 0 | - | 4.51 | 140,112 |
| History by Letter - G | 0 | - | 4.46 | 121,681 |
| History by Letter - H | 0 | - | 4.45 | 136,124 |
| History by Letter - J | 0 | - | 4.51 | 153,524 |
| History by Letter - N | 0 | - | 4.45 | 103,579 |
| History by Letter - S | 0 | - | 4.47 | 93,835 |
| History by Letter - W | 0 | - | 4.45 | 108,951 |
| History by Letter - M | 0 | - | 4.54 | 119,316 |
| History by Letter - K | 0 | - | 4.50 | 101,010 |
| History by Letter - L | 0 | - | 4.50 | 111,713 |
| History by Letter - I | 0 | - | 4.46 | 103,873 |
| History by Letter - D | 0 | - | 4.39 | 137,119 |
| History by Letter - F | 0 | - | 4.18 | 113,876 |
| History by Letter - O | 0 | - | 4.32 | 99,217 |
| History by Letter - P | 0 | - | 4.39 | 107,509 |
| History by Letter - Q | 0 | - | 4.34 | 80,107 |
| History by Letter - R | 0 | - | 4.26 | 121,849 |
| History by Letter - T | 0 | - | 4.39 | 105,016 |
| History by Letter - U | 0 | - | 4.19 | 100,517 |
| History by Letter - V | 0 | - | 4.27 | 80,520 |
| History by Letter - Y | 0 | - | 4.27 | 87,055 |
| History by Letter - Z | 0 | - | 4.18 | 76,842 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,165 |
| Empires A-Z | 0 | - | 4.51 | 44,957 |
| 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 | 129,240 |
| Geography by Letter - T | 0 | - | 4.84 | 152,904 |
| 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 | 46,040 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,555 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,243 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,969 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,366 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,645 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,240 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,813 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,639 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,376 |
| 20th Century A-Z | 0 | - | 4.50 | 53,260 |
| 19th Century A-Z | 0 | - | 4.77 | 46,815 |
| 18th Century A-Z | 0 | - | 4.54 | 42,698 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,755 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,112 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,853 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,567 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,206 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,223 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,405 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,018 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,478 |
| 16th Century A-Z | 0 | - | 4.58 | 24,436 |
| 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 | 34,222 |
| NATO Military Alphabet | 0 | - | 4.98 | 556,142 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 799,286 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,897 |
| Geography by Letter - A | 0 | - | 4.74 | 210,768 |
| Geography by Letter - B | 0 | - | 4.56 | 183,728 |
| Geography by Letter - H | 0 | - | 4.69 | 149,603 |
| Geography by Letter - C | 0 | - | 4.47 | 157,956 |
| Geography by Letter - D | 0 | - | 4.50 | 149,856 |
| Geography by Letter - E | 0 | - | 4.42 | 146,981 |
| Geography by Letter - I | 0 | - | 4.42 | 121,471 |
| Geography by Letter - K | 0 | - | 4.53 | 117,597 |
| Geography by Letter - L | 0 | - | 4.43 | 147,918 |
| Geography by Letter - M | 0 | - | 4.49 | 117,908 |
| Geography by Letter - N | 0 | - | 4.51 | 126,529 |
| Geography by Letter - P | 0 | - | 4.47 | 175,455 |
| Geography by Letter - R | 0 | - | 4.44 | 130,709 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,938 |
| Geography by Letter - U | 0 | - | 4.53 | 142,412 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,031 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,180 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,765 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,244 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,432 |
| Movies that Start with G | 0 | - | 4.48 | 68,355 |
| Movies that Start with I | 0 | - | 4.41 | 65,008 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,662 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,138 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,602 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,446 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,898 |
| Name the War | 0 | - | 4.37 | 201,127 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,460 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,921 |
| Famous Families #1 | 0 | - | 4.20 | 83,474 |
| Names for Warriors | 0 | - | 4.40 | 36,849 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,961 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,009 |
| Empires by Maps | 0 | - | 4.98 | 119,130 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,680 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,924 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,607 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,403 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,194 |
| The 15th Century | 0 | - | 4.43 | 51,116 |
| The 14th Century | 0 | - | 4.55 | 49,218 |
| The 13th Century | 0 | - | 4.48 | 43,197 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,001 |
| Military History A-Z | 0 | - | 4.20 | 21,088 |
| Ye Olde Professions | 0 | - | 4.67 | 156,024 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,272 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,393 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,629 |
| Countries by Military Spending | 0 | - | 4.93 | 176,845 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,308,957 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,682 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,023 |
| Animals that Start with L | 0 | - | 4.47 | 101,647 |
| Animals that Start with P | 0 | - | 4.45 | 85,902 |
| Animals that Start with S | 0 | - | 4.49 | 87,091 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,888 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,916 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,105 |
| Islands A-Z | 0 | - | 4.46 | 117,042 |
| World Cities A-Z by Clue #2 | 0 | - | 4.40 | 58,423 |
| Human Body A-Z | 0 | - | 4.51 | 128,814 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,052 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,983 |
| Africa A-Z | 0 | - | 4.57 | 46,471 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 56,949 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,129 |
| Metals of Antiquity | 0 | - | 4.94 | 93,087 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,376 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,244 |
| WWI... or WWII? | 0 | - | 4.85 | 141,231 |
| Oldest Things | 0 | - | 3.92 | 65,618 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,786 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,919 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,560 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,059 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,808 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,270 |
| Disney A-Z | 0 | - | 4.37 | 86,767 |
| Literature by Letter - A | 0 | - | 4.23 | 31,817 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,091 |
| Companies A-Z | 0 | - | 4.30 | 42,644 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,951 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,536 |
| Geography by Letter - G | 0 | - | 4.35 | 125,739 |
| Geography by Letter - F | 0 | - | 4.27 | 137,335 |
| Geography by Letter - J | 0 | - | 4.34 | 122,410 |
| Geography by Letter - O | 0 | - | 4.37 | 129,256 |
| Geography by Letter - V | 0 | - | 4.39 | 121,214 |
| Geography by Letter - W | 0 | - | 4.39 | 114,425 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,902 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,246 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,081 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,160 |
| Video Games A-Z | 0 | - | 4.08 | 38,798 |
| 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 | 44,222 |
| Movies that Start with A | 0 | - | 4.13 | 61,736 |
| Movies that Start with C | 0 | - | 4.30 | 61,678 |
| Movies that Start with B | 0 | - | 4.36 | 85,032 |
| Movies that Start with D | 0 | - | 4.34 | 68,312 |
| Movies that Start with E | 0 | - | 4.13 | 68,242 |
| Movies that Start with J | 0 | - | 4.18 | 76,009 |
| Movies that Start with L | 0 | - | 4.16 | 60,290 |
| Movies that Start with M | 0 | - | 4.28 | 48,128 |
| Movies that Start with N | 0 | - | 4.02 | 41,162 |
| Movies that Start with P | 0 | - | 4.25 | 54,063 |
| Movies that Start with R | 0 | - | 4.17 | 46,523 |
| 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 | 68,728 |
| Music by Letter - F | 0 | - | 4.48 | 26,896 |
| Music by Letter - A | 0 | - | 4.61 | 31,262 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,521 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,005 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,254 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,552 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,051 |
| Influential Women in History | 0 | - | 4.42 | 35,252 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,108 |
| Cradles of Civilization | 0 | - | 4.46 | 39,326 |
| Materials From History #1 | 0 | - | 4.56 | 51,290 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,403 |
| Notable People of WWII | 0 | - | 4.53 | 85,437 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,642 |
| World War I Quiz | 0 | - | 4.78 | 100,488 |
| WWI A-Z | 0 | - | 4.50 | 38,123 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,455 |
| Famous Explorers | 0 | - | 4.58 | 36,036 |
| Famous Empires by Description | 0 | - | 4.73 | 118,116 |
| Answers by Time Period | 0 | - | 4.63 | 55,388 |
| History of France | 0 | - | 4.59 | 56,501 |
| Star Wars A-Z | 0 | - | 4.46 | 87,501 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 77,287 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,112 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,174 |
