| History by Letter - B | 0 | - | 4.45 | 173,506 |
| History by Letter - C | 0 | - | 4.70 | 172,859 |
| History by Letter - E | 0 | - | 4.51 | 141,669 |
| History by Letter - G | 0 | - | 4.46 | 123,234 |
| History by Letter - H | 0 | - | 4.45 | 137,756 |
| History by Letter - J | 0 | - | 4.51 | 155,193 |
| History by Letter - N | 0 | - | 4.45 | 104,917 |
| History by Letter - S | 0 | - | 4.47 | 95,095 |
| History by Letter - W | 0 | - | 4.45 | 110,348 |
| History by Letter - M | 0 | - | 4.54 | 120,826 |
| History by Letter - K | 0 | - | 4.50 | 102,131 |
| History by Letter - L | 0 | - | 4.50 | 112,942 |
| History by Letter - I | 0 | - | 4.46 | 105,154 |
| History by Letter - D | 0 | - | 4.40 | 138,757 |
| History by Letter - F | 0 | - | 4.19 | 115,211 |
| History by Letter - O | 0 | - | 4.32 | 100,389 |
| History by Letter - P | 0 | - | 4.36 | 108,589 |
| History by Letter - Q | 0 | - | 4.34 | 80,888 |
| History by Letter - R | 0 | - | 4.26 | 122,930 |
| History by Letter - T | 0 | - | 4.39 | 105,915 |
| History by Letter - U | 0 | - | 4.19 | 101,429 |
| History by Letter - V | 0 | - | 4.27 | 81,302 |
| History by Letter - Y | 0 | - | 4.27 | 87,810 |
| History by Letter - Z | 0 | - | 4.20 | 77,541 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,371 |
| History Containing the Letter X | 0 | - | 4.47 | 27,177 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,549 |
| Empires A-Z | 0 | - | 4.52 | 45,518 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,823 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,812 |
| History Ending in Z | 0 | - | 4.35 | 13,609 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,827 |
| Geography by Letter - T | 0 | - | 4.84 | 155,555 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,826 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,548 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,500 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 83,216 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 109,081 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,231 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,242 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,077 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,269 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,251 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,476 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,631 |
| 20th Century A-Z | 0 | - | 4.50 | 54,050 |
| "Second Best" History Edition | 0 | - | 4.94 | 64,425 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,564 |
| Countries That Were Invaded | 0 | - | 4.55 | 98,345 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,158 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 239,048 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,215 |
| 19th Century A-Z | 0 | - | 4.77 | 47,516 |
| 18th Century A-Z | 0 | - | 4.54 | 43,365 |
| 17th Century A-Z | 0 | - | 4.78 | 34,788 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,875 |
| Normandy D-Day Beaches | 0 | - | 4.84 | 40,803 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,387 |
| NATO Military Alphabet | 0 | - | 4.98 | 565,367 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,156 |
| Geography by Letter - A | 0 | - | 4.75 | 213,260 |
| Geography by Letter - B | 0 | - | 4.61 | 186,144 |
| Geography by Letter - H | 0 | - | 4.69 | 151,683 |
| Geography by Letter - C | 0 | - | 4.48 | 160,001 |
| Geography by Letter - D | 0 | - | 4.50 | 151,954 |
| Geography by Letter - E | 0 | - | 4.42 | 148,780 |
| Geography by Letter - I | 0 | - | 4.42 | 122,942 |
| Geography by Letter - K | 0 | - | 4.54 | 119,426 |
| Geography by Letter - L | 0 | - | 4.44 | 149,815 |
| Geography by Letter - M | 0 | - | 4.51 | 119,783 |
| Geography by Letter - N | 0 | - | 4.51 | 128,142 |
| Geography by Letter - P | 0 | - | 4.47 | 177,106 |
| Geography by Letter - R | 0 | - | 4.43 | 132,907 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,710 |
| Geography by Letter - U | 0 | - | 4.52 | 144,346 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,417 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,815 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,224 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,599 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,198 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,547 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,874 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,678 |
| Movies that Start with G | 0 | - | 4.49 | 68,870 |
| Movies that Start with I | 0 | - | 4.41 | 65,458 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,391 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,269 |
| Empires by Maps | 0 | - | 4.98 | 122,657 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,183 |
| Name the War | 0 | - | 4.37 | 203,034 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,663 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,474 |
| Famous Families #1 | 0 | - | 4.20 | 83,780 |
| Names for Warriors | 0 | - | 4.40 | 37,093 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,460 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,675 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,214 |
| Countries by Military Spending | 0 | - | 4.93 | 179,215 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,685 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,909 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 120,016 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 106,146 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 49,036 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,489 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,953 |
| 16th Century A-Z | 0 | - | 4.59 | 25,050 |
| 15th Century A-Z | 0 | - | 4.50 | 24,040 |
| 14th Century A-Z | 0 | - | 4.41 | 24,535 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,524 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,597 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,797 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,328,052 |
| Animals that Start with L | 0 | - | 4.47 | 102,574 |
| Animals that Start with P | 0 | - | 4.45 | 86,576 |
| Animals that Start with S | 0 | - | 4.49 | 87,777 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,251 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,750 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 78,310 |
| Islands A-Z | 0 | - | 4.46 | 128,144 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,476 |
| Human Body A-Z | 0 | - | 4.51 | 130,175 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,102 |
| Africa A-Z | 0 | - | 4.57 | 46,806 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,319 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,582 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,501 |
| Military History A-Z | 0 | - | 4.20 | 21,275 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,266 |
| Disney A-Z | 0 | - | 4.37 | 87,593 |
| Literature by Letter - A | 0 | - | 4.24 | 32,428 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,444 |
| Companies A-Z | 0 | - | 4.30 | 42,783 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,773 |
| Geography by Letter - G | 0 | - | 4.33 | 127,249 |
| Geography by Letter - F | 0 | - | 4.28 | 138,960 |
| Geography by Letter - J | 0 | - | 4.35 | 123,831 |
| Geography by Letter - O | 0 | - | 4.37 | 130,655 |
| Geography by Letter - V | 0 | - | 4.39 | 122,807 |
| Geography by Letter - W | 0 | - | 4.39 | 115,637 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,349 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,321 |
| Geography by Letter - Q | 0 | - | 4.38 | 70,230 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,408 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 28,034 |
| Video Games A-Z | 0 | - | 4.05 | 39,298 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,441 |
| Movies that Start with A | 0 | - | 4.13 | 62,179 |
| Movies that Start with C | 0 | - | 4.30 | 62,193 |
| Movies that Start with B | 0 | - | 4.36 | 85,743 |
| Movies that Start with D | 0 | - | 4.34 | 68,702 |
| Movies that Start with E | 0 | - | 4.13 | 68,642 |
| Movies that Start with J | 0 | - | 4.18 | 76,466 |
| Movies that Start with L | 0 | - | 4.16 | 60,643 |
| Movies that Start with M | 0 | - | 4.28 | 48,436 |
| Movies that Start with N | 0 | - | 4.02 | 41,422 |
| Movies that Start with P | 0 | - | 4.25 | 54,318 |
| Movies that Start with R | 0 | - | 4.17 | 46,859 |
| Movies that Start with W | 0 | - | 4.07 | 44,394 |
| Movies that Start with T | 0 | - | 4.34 | 49,491 |
| Movies that Start with S | 0 | - | 4.35 | 56,669 |
| Movies that Start with F | 0 | - | 4.13 | 69,127 |
| Music by Letter - F | 0 | - | 4.47 | 27,160 |
| Music by Letter - A | 0 | - | 4.61 | 31,560 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,816 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,383 |
| Brand Logos That Start With C | 0 | - | 4.21 | 50,272 |
| Brand Logos That Start With L | 0 | - | 4.40 | 62,077 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,711 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,489 |
| Influential Women in History | 0 | - | 4.43 | 36,595 |
| Metals of Antiquity | 0 | - | 4.95 | 94,045 |
| Cradles of Civilization | 0 | - | 4.46 | 40,560 |
| Materials From History #1 | 0 | - | 4.56 | 52,134 |
| Materials From History #2 | 0 | - | 4.59 | 31,634 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,244 |
| History: What Came First? #1 | 0 | - | 4.87 | 106,171 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,867 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,256 |
| WWI... or WWII? | 0 | - | 4.85 | 143,890 |
| Oldest Things | 0 | - | 3.92 | 65,725 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,874 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,777 |
| Famous Explorers | 0 | - | 4.58 | 36,418 |
| Famous Empires by Description | 0 | - | 4.74 | 119,083 |
| Answers by Time Period | 0 | - | 4.64 | 55,946 |
| Coups d'Etat - Name the Country | 0 | - | 4.43 | 42,471 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,957 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,729 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,838 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,521 |
| Middle East A-Z | 0 | - | 4.47 | 46,279 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,593 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,418 |
| Notable People of WWII | 0 | - | 4.53 | 86,656 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,732 |
| World War I Quiz | 0 | - | 4.78 | 102,192 |
| WWI A-Z | 0 | - | 4.51 | 38,676 |
| Name a Valid Year in History | 0 | - | 4.93 | 68,169 |
| Most Important People in History | 0 | - | 3.97 | 51,068 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,813 |
