| History by Letter - A | 0 | - | 4.51 | 154,054 |
| History by Letter - B | 0 | - | 4.45 | 173,496 |
| History by Letter - C | 0 | - | 4.70 | 172,842 |
| History by Letter - E | 0 | - | 4.51 | 141,653 |
| History by Letter - G | 0 | - | 4.46 | 123,226 |
| History by Letter - H | 0 | - | 4.45 | 137,743 |
| History by Letter - J | 0 | - | 4.51 | 155,183 |
| History by Letter - N | 0 | - | 4.45 | 104,909 |
| History by Letter - S | 0 | - | 4.47 | 95,087 |
| History by Letter - W | 0 | - | 4.45 | 110,341 |
| History by Letter - M | 0 | - | 4.54 | 120,819 |
| History by Letter - K | 0 | - | 4.50 | 102,121 |
| History by Letter - L | 0 | - | 4.50 | 112,932 |
| History by Letter - I | 0 | - | 4.46 | 105,142 |
| History by Letter - D | 0 | - | 4.40 | 138,745 |
| History by Letter - F | 0 | - | 4.19 | 115,201 |
| History by Letter - O | 0 | - | 4.32 | 100,380 |
| History by Letter - P | 0 | - | 4.36 | 108,582 |
| History by Letter - Q | 0 | - | 4.34 | 80,884 |
| History by Letter - R | 0 | - | 4.26 | 122,922 |
| History by Letter - T | 0 | - | 4.39 | 105,910 |
| History by Letter - U | 0 | - | 4.19 | 101,425 |
| History by Letter - V | 0 | - | 4.27 | 81,297 |
| History by Letter - Y | 0 | - | 4.27 | 87,804 |
| History by Letter - Z | 0 | - | 4.20 | 77,536 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,369 |
| History Containing the Letter X | 0 | - | 4.47 | 27,174 |
| Empires A-Z | 0 | - | 4.52 | 45,514 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,821 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,812 |
| History Ending in Z | 0 | - | 4.35 | 13,608 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 155,807 |
| Geography by Letter - T | 0 | - | 4.84 | 155,545 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,822 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,543 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,498 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 83,211 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 109,072 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,228 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,229 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,072 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,259 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,239 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,467 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,622 |
| 20th Century A-Z | 0 | - | 4.50 | 54,047 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,558 |
| Countries That Were Invaded | 0 | - | 4.55 | 98,339 |
| 19th Century A-Z | 0 | - | 4.77 | 47,512 |
| 18th Century A-Z | 0 | - | 4.54 | 43,361 |
| 17th Century A-Z | 0 | - | 4.78 | 34,786 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,158 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 239,036 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,207 |
| "Second Best" History Edition | 0 | - | 4.94 | 64,420 |
| Normandy D-Day Beaches | 0 | - | 4.84 | 40,800 |
| Territory Changes in World War I | 0 | - | 4.88 | 47,376 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,677 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,872 |
| NATO Military Alphabet | 0 | - | 4.98 | 565,312 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,155 |
| Geography by Letter - A | 0 | - | 4.75 | 213,245 |
| Geography by Letter - B | 0 | - | 4.61 | 186,127 |
| Geography by Letter - H | 0 | - | 4.69 | 151,674 |
| Geography by Letter - C | 0 | - | 4.48 | 159,991 |
| Geography by Letter - D | 0 | - | 4.50 | 151,945 |
| Geography by Letter - E | 0 | - | 4.42 | 148,770 |
| Geography by Letter - I | 0 | - | 4.42 | 122,936 |
| Geography by Letter - K | 0 | - | 4.54 | 119,416 |
| Geography by Letter - L | 0 | - | 4.44 | 149,804 |
| Geography by Letter - M | 0 | - | 4.51 | 119,770 |
| Geography by Letter - N | 0 | - | 4.51 | 128,135 |
| Geography by Letter - P | 0 | - | 4.47 | 177,094 |
| Geography by Letter - R | 0 | - | 4.43 | 132,899 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,701 |
| Geography by Letter - U | 0 | - | 4.52 | 144,330 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,415 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,812 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,224 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,598 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,195 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,541 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,872 |
| Movies that Start with G | 0 | - | 4.49 | 68,866 |
| Movies that Start with I | 0 | - | 4.41 | 65,455 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,378 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,483 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,952 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,182 |
| Name the War | 0 | - | 4.37 | 203,026 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,661 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,471 |
| Famous Families #1 | 0 | - | 4.20 | 83,778 |
| Names for Warriors | 0 | - | 4.40 | 37,092 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,457 |
| 16th Century A-Z | 0 | - | 4.59 | 25,048 |
| 15th Century A-Z | 0 | - | 4.50 | 24,039 |
| 14th Century A-Z | 0 | - | 4.41 | 24,532 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,213 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,262 |
| Empires by Maps | 0 | - | 4.98 | 122,639 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 120,006 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 106,138 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 49,033 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,675 |
| The 13th Century | 0 | - | 4.48 | 43,407 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,290 |
| Military History A-Z | 0 | - | 4.20 | 21,275 |
| Ye Olde Professions | 0 | - | 4.63 | 157,619 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,522 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,596 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,796 |
| Countries by Military Spending | 0 | - | 4.93 | 179,207 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,327,938 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,680 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,898 |
| Animals that Start with L | 0 | - | 4.47 | 102,565 |
| Animals that Start with P | 0 | - | 4.45 | 86,573 |
| Animals that Start with S | 0 | - | 4.49 | 87,775 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,245 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,744 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 78,295 |
| Islands A-Z | 0 | - | 4.46 | 128,132 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,468 |
| Human Body A-Z | 0 | - | 4.51 | 130,165 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,095 |
| Africa A-Z | 0 | - | 4.57 | 46,803 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,314 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,575 |
| Metals of Antiquity | 0 | - | 4.95 | 94,043 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,243 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,254 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,500 |
| WWI... or WWII? | 0 | - | 4.85 | 143,872 |
| Oldest Things | 0 | - | 3.92 | 65,725 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,873 |
| Famous Firsts #3 - The United States | 0 | - | 4.20 | 14,956 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,266 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,728 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,824 |
| Disney A-Z | 0 | - | 4.37 | 87,589 |
| Literature by Letter - A | 0 | - | 4.24 | 32,426 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,443 |
| Companies A-Z | 0 | - | 4.30 | 42,783 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,520 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,773 |
| Geography by Letter - G | 0 | - | 4.33 | 127,240 |
| Geography by Letter - F | 0 | - | 4.28 | 138,952 |
| Geography by Letter - J | 0 | - | 4.35 | 123,822 |
| Geography by Letter - O | 0 | - | 4.37 | 130,647 |
| Geography by Letter - V | 0 | - | 4.39 | 122,799 |
| Geography by Letter - W | 0 | - | 4.39 | 115,630 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,344 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,315 |
| Geography by Letter - Q | 0 | - | 4.38 | 70,222 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,408 |
| Video Games A-Z | 0 | - | 4.05 | 39,294 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,437 |
| Middle East A-Z | 0 | - | 4.47 | 46,277 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,592 |
| Movies that Start with A | 0 | - | 4.13 | 62,176 |
| Movies that Start with C | 0 | - | 4.30 | 62,190 |
| Movies that Start with B | 0 | - | 4.36 | 85,737 |
| Movies that Start with D | 0 | - | 4.34 | 68,698 |
| Movies that Start with E | 0 | - | 4.13 | 68,639 |
| Movies that Start with J | 0 | - | 4.18 | 76,465 |
| Movies that Start with L | 0 | - | 4.16 | 60,641 |
| Movies that Start with M | 0 | - | 4.28 | 48,435 |
| Movies that Start with N | 0 | - | 4.02 | 41,421 |
| Movies that Start with P | 0 | - | 4.25 | 54,317 |
| Movies that Start with R | 0 | - | 4.17 | 46,858 |
| Movies that Start with W | 0 | - | 4.07 | 44,394 |
| Movies that Start with T | 0 | - | 4.34 | 49,490 |
| Movies that Start with S | 0 | - | 4.35 | 56,669 |
| Movies that Start with F | 0 | - | 4.13 | 69,125 |
| Music by Letter - F | 0 | - | 4.47 | 27,157 |
| Music by Letter - A | 0 | - | 4.61 | 31,558 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,810 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,373 |
| Brand Logos That Start With C | 0 | - | 4.21 | 50,264 |
| Brand Logos That Start With L | 0 | - | 4.40 | 62,067 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,702 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,486 |
| Influential Women in History | 0 | - | 4.43 | 36,592 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,414 |
| Cradles of Civilization | 0 | - | 4.46 | 40,557 |
| Materials From History #1 | 0 | - | 4.56 | 52,133 |
| Materials From History #2 | 0 | - | 4.59 | 31,633 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,833 |
| Notable People of WWII | 0 | - | 4.53 | 86,648 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,728 |
| World War I Quiz | 0 | - | 4.78 | 102,184 |
| WWI A-Z | 0 | - | 4.51 | 38,673 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,770 |
| Famous Explorers | 0 | - | 4.58 | 36,417 |
| Famous Empires by Description | 0 | - | 4.74 | 119,080 |
| Answers by Time Period | 0 | - | 4.64 | 55,945 |
| Coups d'Etat - Name the Country | 0 | - | 4.43 | 42,461 |
| History of France | 0 | - | 4.61 | 57,747 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,813 |
