| History by Letter - A | 0 | - | 4.51 | 152,436 |
| History by Letter - B | 0 | - | 4.45 | 171,625 |
| History by Letter - C | 0 | - | 4.70 | 170,756 |
| History by Letter - E | 0 | - | 4.51 | 140,145 |
| History by Letter - G | 0 | - | 4.46 | 121,704 |
| History by Letter - H | 0 | - | 4.45 | 136,157 |
| History by Letter - J | 0 | - | 4.51 | 153,555 |
| History by Letter - N | 0 | - | 4.45 | 103,598 |
| History by Letter - S | 0 | - | 4.47 | 93,854 |
| History by Letter - W | 0 | - | 4.45 | 108,972 |
| History by Letter - M | 0 | - | 4.54 | 119,334 |
| History by Letter - K | 0 | - | 4.50 | 101,026 |
| History by Letter - L | 0 | - | 4.50 | 111,734 |
| History by Letter - I | 0 | - | 4.46 | 103,889 |
| History by Letter - D | 0 | - | 4.39 | 137,150 |
| History by Letter - F | 0 | - | 4.18 | 113,896 |
| History by Letter - O | 0 | - | 4.32 | 99,228 |
| History by Letter - P | 0 | - | 4.39 | 107,522 |
| History by Letter - Q | 0 | - | 4.34 | 80,117 |
| History by Letter - R | 0 | - | 4.26 | 121,861 |
| History by Letter - T | 0 | - | 4.39 | 105,023 |
| History by Letter - U | 0 | - | 4.19 | 100,535 |
| History by Letter - V | 0 | - | 4.27 | 80,532 |
| History by Letter - Y | 0 | - | 4.27 | 87,070 |
| History by Letter - Z | 0 | - | 4.18 | 76,857 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,172 |
| Empires A-Z | 0 | - | 4.51 | 44,973 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,698 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,596 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,294 |
| Geography by Letter - T | 0 | - | 4.84 | 152,972 |
| People in History A-Z #1 | 0 | - | 4.61 | 98,791 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,930 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,048 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,600 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,276 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,980 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,398 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,669 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,279 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,842 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,673 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,391 |
| 20th Century A-Z | 0 | - | 4.50 | 53,274 |
| 19th Century A-Z | 0 | - | 4.77 | 46,823 |
| 18th Century A-Z | 0 | - | 4.54 | 42,710 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,777 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,133 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,860 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,631 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,252 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,238 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,427 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,030 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,481 |
| 16th Century A-Z | 0 | - | 4.58 | 24,440 |
| 15th Century A-Z | 0 | - | 4.49 | 23,432 |
| 14th Century A-Z | 0 | - | 4.41 | 23,860 |
| 17th Century A-Z | 0 | - | 4.78 | 34,228 |
| NATO Military Alphabet | 0 | - | 4.98 | 556,363 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 799,435 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,904 |
| Geography by Letter - A | 0 | - | 4.74 | 210,832 |
| Geography by Letter - B | 0 | - | 4.56 | 183,788 |
| Geography by Letter - H | 0 | - | 4.69 | 149,648 |
| Geography by Letter - C | 0 | - | 4.47 | 158,002 |
| Geography by Letter - D | 0 | - | 4.50 | 149,901 |
| Geography by Letter - E | 0 | - | 4.42 | 147,020 |
| Geography by Letter - I | 0 | - | 4.42 | 121,510 |
| Geography by Letter - K | 0 | - | 4.53 | 117,634 |
| Geography by Letter - L | 0 | - | 4.43 | 147,975 |
| Geography by Letter - M | 0 | - | 4.49 | 118,107 |
| Geography by Letter - N | 0 | - | 4.51 | 126,579 |
| Geography by Letter - P | 0 | - | 4.47 | 175,498 |
| Geography by Letter - R | 0 | - | 4.44 | 130,765 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,988 |
| Geography by Letter - U | 0 | - | 4.53 | 142,467 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,037 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,188 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,772 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,250 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,439 |
| Movies that Start with G | 0 | - | 4.48 | 68,375 |
| Movies that Start with I | 0 | - | 4.41 | 65,028 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,707 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,170 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,638 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,472 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,908 |
| Name the War | 0 | - | 4.37 | 201,170 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,466 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,937 |
| Famous Families #1 | 0 | - | 4.20 | 83,485 |
| Names for Warriors | 0 | - | 4.40 | 36,854 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,966 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,069 |
| Empires by Maps | 0 | - | 4.98 | 119,216 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,709 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,952 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,616 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,423 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,211 |
| The 15th Century | 0 | - | 4.43 | 51,125 |
| The 14th Century | 0 | - | 4.55 | 49,227 |
| The 13th Century | 0 | - | 4.48 | 43,205 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,009 |
| Military History A-Z | 0 | - | 4.20 | 21,090 |
| Ye Olde Professions | 0 | - | 4.67 | 156,057 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,284 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,398 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,633 |
| Countries by Military Spending | 0 | - | 4.93 | 176,894 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,309,512 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,704 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,058 |
| Animals that Start with L | 0 | - | 4.47 | 101,667 |
| Animals that Start with P | 0 | - | 4.45 | 85,917 |
| Animals that Start with S | 0 | - | 4.49 | 87,103 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,916 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,949 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,188 |
| Islands A-Z | 0 | - | 4.46 | 117,082 |
| Human Body A-Z | 0 | - | 4.51 | 128,838 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,093 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,003 |
| Africa A-Z | 0 | - | 4.57 | 46,482 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,104 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,138 |
| Metals of Antiquity | 0 | - | 4.94 | 93,098 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,391 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,250 |
| WWI... or WWII? | 0 | - | 4.85 | 141,310 |
| Oldest Things | 0 | - | 3.92 | 65,626 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,787 |
| Famous Firsts #2 | 0 | - | 4.01 | 80,927 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,578 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,063 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,956 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,317 |
| Disney A-Z | 0 | - | 4.37 | 86,782 |
| Literature by Letter - A | 0 | - | 4.23 | 31,821 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,097 |
| Companies A-Z | 0 | - | 4.30 | 42,645 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,961 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,543 |
| Geography by Letter - G | 0 | - | 4.35 | 125,782 |
| Geography by Letter - F | 0 | - | 4.27 | 137,366 |
| Geography by Letter - J | 0 | - | 4.34 | 122,451 |
| Geography by Letter - O | 0 | - | 4.37 | 129,296 |
| Geography by Letter - V | 0 | - | 4.39 | 121,254 |
| Geography by Letter - W | 0 | - | 4.39 | 114,458 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,941 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,279 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,114 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,163 |
| Video Games A-Z | 0 | - | 4.08 | 38,813 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,142 |
| Middle East A-Z | 0 | - | 4.47 | 45,899 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,229 |
| Movies that Start with A | 0 | - | 4.13 | 61,747 |
| Movies that Start with C | 0 | - | 4.30 | 61,693 |
| Movies that Start with B | 0 | - | 4.36 | 85,044 |
| Movies that Start with D | 0 | - | 4.34 | 68,324 |
| Movies that Start with E | 0 | - | 4.13 | 68,252 |
| Movies that Start with J | 0 | - | 4.18 | 76,021 |
| Movies that Start with L | 0 | - | 4.16 | 60,301 |
| Movies that Start with M | 0 | - | 4.28 | 48,139 |
| Movies that Start with N | 0 | - | 4.02 | 41,177 |
| Movies that Start with P | 0 | - | 4.25 | 54,072 |
| Movies that Start with R | 0 | - | 4.17 | 46,540 |
| Movies that Start with W | 0 | - | 4.07 | 44,191 |
| Movies that Start with T | 0 | - | 4.34 | 49,202 |
| Movies that Start with S | 0 | - | 4.35 | 56,358 |
| Movies that Start with F | 0 | - | 4.13 | 68,737 |
| Music by Letter - F | 0 | - | 4.48 | 26,907 |
| Music by Letter - A | 0 | - | 4.61 | 31,273 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,558 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,061 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,276 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,595 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,090 |
| Influential Women in History | 0 | - | 4.42 | 35,269 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,113 |
| Cradles of Civilization | 0 | - | 4.46 | 39,346 |
| Materials From History #1 | 0 | - | 4.56 | 51,308 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,537 |
| Notable People of WWII | 0 | - | 4.53 | 85,458 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,681 |
| World War I Quiz | 0 | - | 4.78 | 100,520 |
| WWI A-Z | 0 | - | 4.50 | 38,137 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,481 |
| Famous Explorers | 0 | - | 4.58 | 36,041 |
| Famous Empires by Description | 0 | - | 4.73 | 118,135 |
| Answers by Time Period | 0 | - | 4.63 | 55,403 |
| History of France | 0 | - | 4.59 | 56,545 |
| Star Wars A-Z | 0 | - | 4.46 | 87,587 |
| Musical Acts by Letter - J | 0 | - | 4.20 | 77,297 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,117 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,186 |
| Musical Acts by Letter - P | 0 | - | 4.24 | 65,256 |
