| History by Letter - A | 0 | - | 4.51 | 152,936 |
| History by Letter - B | 0 | - | 4.45 | 172,191 |
| History by Letter - C | 0 | - | 4.70 | 171,466 |
| History by Letter - E | 0 | - | 4.51 | 140,602 |
| History by Letter - G | 0 | - | 4.46 | 122,114 |
| History by Letter - H | 0 | - | 4.45 | 136,597 |
| History by Letter - J | 0 | - | 4.51 | 154,015 |
| History by Letter - N | 0 | - | 4.45 | 104,079 |
| History by Letter - S | 0 | - | 4.47 | 94,372 |
| History by Letter - W | 0 | - | 4.45 | 109,529 |
| History by Letter - M | 0 | - | 4.54 | 119,844 |
| History by Letter - K | 0 | - | 4.50 | 101,360 |
| History by Letter - L | 0 | - | 4.50 | 112,077 |
| History by Letter - I | 0 | - | 4.46 | 104,224 |
| History by Letter - D | 0 | - | 4.40 | 137,749 |
| History by Letter - F | 0 | - | 4.18 | 114,280 |
| History by Letter - O | 0 | - | 4.32 | 99,511 |
| History by Letter - P | 0 | - | 4.39 | 107,861 |
| History by Letter - Q | 0 | - | 4.34 | 80,343 |
| History by Letter - R | 0 | - | 4.26 | 122,200 |
| History by Letter - T | 0 | - | 4.39 | 105,289 |
| History by Letter - U | 0 | - | 4.19 | 100,792 |
| History by Letter - V | 0 | - | 4.27 | 80,769 |
| History by Letter - Y | 0 | - | 4.27 | 87,289 |
| History by Letter - Z | 0 | - | 4.20 | 77,061 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,227 |
| History Containing the Letter X | 0 | - | 4.47 | 27,029 |
| Empires A-Z | 0 | - | 4.52 | 45,115 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,734 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,654 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 130,109 |
| Geography by Letter - T | 0 | - | 4.84 | 153,805 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,968 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,076 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,161 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,128 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,828 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,274 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,228 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,965 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,866 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,340 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,294 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,665 |
| 20th Century A-Z | 0 | - | 4.50 | 53,683 |
| 19th Century A-Z | 0 | - | 4.77 | 47,252 |
| 18th Century A-Z | 0 | - | 4.54 | 43,137 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,010 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,355 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,936 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,463 |
| Name an Official Language A-Z | 0 | - | 4.91 | 175,790 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,384 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,679 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,182 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,599 |
| 16th Century A-Z | 0 | - | 4.58 | 24,871 |
| 15th Century A-Z | 0 | - | 4.49 | 23,906 |
| 14th Century A-Z | 0 | - | 4.41 | 24,346 |
| 17th Century A-Z | 0 | - | 4.78 | 34,606 |
| NATO Military Alphabet | 0 | - | 4.98 | 558,800 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 801,590 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,976 |
| Geography by Letter - A | 0 | - | 4.74 | 211,546 |
| Geography by Letter - B | 0 | - | 4.56 | 184,591 |
| Geography by Letter - H | 0 | - | 4.69 | 150,304 |
| Geography by Letter - C | 0 | - | 4.47 | 158,684 |
| Geography by Letter - D | 0 | - | 4.50 | 150,508 |
| Geography by Letter - E | 0 | - | 4.42 | 147,594 |
| Geography by Letter - I | 0 | - | 4.42 | 122,009 |
| Geography by Letter - K | 0 | - | 4.53 | 118,352 |
| Geography by Letter - L | 0 | - | 4.43 | 148,513 |
| Geography by Letter - M | 0 | - | 4.49 | 118,638 |
| Geography by Letter - N | 0 | - | 4.51 | 127,197 |
| Geography by Letter - P | 0 | - | 4.47 | 176,015 |
| Geography by Letter - R | 0 | - | 4.43 | 131,601 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,537 |
| Geography by Letter - U | 0 | - | 4.53 | 143,067 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,135 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,626 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,295 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,888 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,345 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,560 |
| Movies that Start with G | 0 | - | 4.49 | 68,488 |
| Movies that Start with I | 0 | - | 4.41 | 65,128 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,131 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,629 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,878 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,614 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,964 |
| Name the War | 0 | - | 4.37 | 201,498 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,523 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,024 |
| Famous Families #1 | 0 | - | 4.20 | 83,579 |
| Names for Warriors | 0 | - | 4.40 | 36,909 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,009 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,019 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,625 |
| Empires by Maps | 0 | - | 4.98 | 120,092 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,998 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,201 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,712 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,631 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,340 |
| The 15th Century | 0 | - | 4.43 | 51,205 |
| The 14th Century | 0 | - | 4.55 | 49,296 |
| The 13th Century | 0 | - | 4.48 | 43,263 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,104 |
| Military History A-Z | 0 | - | 4.20 | 21,144 |
| Ye Olde Professions | 0 | - | 4.67 | 156,614 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,338 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,453 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,672 |
| Countries by Military Spending | 0 | - | 4.93 | 177,454 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,314,452 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,951 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,490 |
| Animals that Start with L | 0 | - | 4.47 | 101,801 |
| Animals that Start with P | 0 | - | 4.45 | 86,039 |
| Animals that Start with S | 0 | - | 4.49 | 87,243 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,320 |
| Geography by Letter on the World Map - C | 0 | - | 4.79 | 117,394 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 67,994 |
| Islands A-Z | 0 | - | 4.45 | 123,347 |
| Human Body A-Z | 0 | - | 4.51 | 129,085 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,451 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,523 |
| Africa A-Z | 0 | - | 4.57 | 46,576 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,619 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,248 |
| Metals of Antiquity | 0 | - | 4.95 | 93,346 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,616 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,335 |
| WWI... or WWII? | 0 | - | 4.85 | 141,963 |
| Oldest Things | 0 | - | 3.92 | 65,648 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,814 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,636 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,128 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,213 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,919 |
| Disney A-Z | 0 | - | 4.37 | 86,999 |
| Literature by Letter - A | 0 | - | 4.23 | 32,001 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,213 |
| Companies A-Z | 0 | - | 4.30 | 42,688 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,089 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,616 |
| Geography by Letter - G | 0 | - | 4.33 | 126,288 |
| Geography by Letter - F | 0 | - | 4.27 | 137,828 |
| Geography by Letter - J | 0 | - | 4.34 | 122,907 |
| Geography by Letter - O | 0 | - | 4.37 | 129,732 |
| Geography by Letter - V | 0 | - | 4.39 | 121,736 |
| Geography by Letter - W | 0 | - | 4.39 | 114,843 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,491 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,651 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,470 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,240 |
| Video Games A-Z | 0 | - | 4.08 | 38,945 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,231 |
| Middle East A-Z | 0 | - | 4.47 | 45,982 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,326 |
| Movies that Start with A | 0 | - | 4.13 | 61,839 |
| Movies that Start with C | 0 | - | 4.30 | 61,812 |
| Movies that Start with B | 0 | - | 4.36 | 85,172 |
| Movies that Start with D | 0 | - | 4.34 | 68,407 |
| Movies that Start with E | 0 | - | 4.13 | 68,339 |
| Movies that Start with J | 0 | - | 4.18 | 76,128 |
| Movies that Start with L | 0 | - | 4.16 | 60,392 |
| Movies that Start with M | 0 | - | 4.28 | 48,204 |
| Movies that Start with N | 0 | - | 4.02 | 41,235 |
| Movies that Start with P | 0 | - | 4.25 | 54,135 |
| Movies that Start with R | 0 | - | 4.17 | 46,617 |
| Movies that Start with W | 0 | - | 4.07 | 44,247 |
| Movies that Start with T | 0 | - | 4.34 | 49,272 |
| Movies that Start with S | 0 | - | 4.35 | 56,442 |
| Movies that Start with F | 0 | - | 4.13 | 68,820 |
| Music by Letter - F | 0 | - | 4.48 | 26,981 |
| Music by Letter - A | 0 | - | 4.61 | 31,351 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,873 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,417 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,571 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,994 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,460 |
| Influential Women in History | 0 | - | 4.42 | 35,520 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,201 |
| Cradles of Civilization | 0 | - | 4.46 | 39,576 |
| Materials From History #1 | 0 | - | 4.56 | 51,493 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,815 |
| Notable People of WWII | 0 | - | 4.53 | 85,858 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,888 |
| World War I Quiz | 0 | - | 4.78 | 101,165 |
| WWI A-Z | 0 | - | 4.50 | 38,285 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,771 |
| Famous Explorers | 0 | - | 4.58 | 36,128 |
| Famous Empires by Description | 0 | - | 4.73 | 118,359 |
| Answers by Time Period | 0 | - | 4.63 | 55,529 |
| History of France | 0 | - | 4.59 | 56,875 |
| Star Wars A-Z | 0 | - | 4.46 | 88,086 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,422 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,309 |
