| History by Letter - B | 0 | - | 4.45 | 171,244 |
| History by Letter - C | 0 | - | 4.69 | 170,286 |
| History by Letter - E | 0 | - | 4.51 | 139,831 |
| History by Letter - G | 0 | - | 4.45 | 121,430 |
| History by Letter - H | 0 | - | 4.45 | 135,854 |
| History by Letter - J | 0 | - | 4.51 | 153,222 |
| History by Letter - N | 0 | - | 4.44 | 103,381 |
| History by Letter - S | 0 | - | 4.47 | 93,668 |
| History by Letter - W | 0 | - | 4.45 | 108,715 |
| History by Letter - M | 0 | - | 4.54 | 119,086 |
| History by Letter - K | 0 | - | 4.50 | 100,815 |
| History by Letter - L | 0 | - | 4.49 | 111,495 |
| History by Letter - I | 0 | - | 4.46 | 103,671 |
| History by Letter - D | 0 | - | 4.39 | 136,870 |
| History by Letter - F | 0 | - | 4.18 | 113,676 |
| History by Letter - O | 0 | - | 4.31 | 99,043 |
| History by Letter - P | 0 | - | 4.38 | 107,335 |
| History by Letter - Q | 0 | - | 4.34 | 79,969 |
| History by Letter - R | 0 | - | 4.26 | 121,641 |
| History by Letter - T | 0 | - | 4.39 | 104,862 |
| History by Letter - U | 0 | - | 4.19 | 100,234 |
| History by Letter - V | 0 | - | 4.27 | 80,353 |
| History by Letter - Y | 0 | - | 4.27 | 86,927 |
| History by Letter - Z | 0 | - | 4.18 | 76,732 |
| History Containing the Letter X | 0 | - | 4.47 | 26,929 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,342 |
| Empires A-Z | 0 | - | 4.51 | 44,811 |
| Same Start and End Letter - History #1 | 0 | - | 4.16 | 24,663 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,537 |
| History Ending in Z | 0 | - | 4.35 | 13,450 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 128,647 |
| Geography by Letter - T | 0 | - | 4.84 | 152,390 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,588 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,807 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,952 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,247 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,877 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,720 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,907 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,372 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,723 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,366 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,358 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,135 |
| 20th Century A-Z | 0 | - | 4.50 | 53,156 |
| 19th Century A-Z | 0 | - | 4.77 | 46,729 |
| 18th Century A-Z | 0 | - | 4.54 | 42,640 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,769 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,538 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,906 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,797 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,797 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,724 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,381 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,102 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,215 |
| 16th Century A-Z | 0 | - | 4.58 | 24,378 |
| 15th Century A-Z | 0 | - | 4.49 | 23,394 |
| 17th Century A-Z | 0 | - | 4.78 | 34,168 |
| NATO Military Alphabet | 0 | - | 4.98 | 554,080 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,807 |
| Geography by Letter - A | 0 | - | 4.74 | 210,077 |
| Geography by Letter - B | 0 | - | 4.56 | 183,240 |
| Geography by Letter - H | 0 | - | 4.69 | 149,263 |
| Geography by Letter - C | 0 | - | 4.47 | 157,539 |
| Geography by Letter - D | 0 | - | 4.50 | 149,473 |
| Geography by Letter - E | 0 | - | 4.42 | 146,630 |
| Geography by Letter - I | 0 | - | 4.42 | 121,186 |
| Geography by Letter - K | 0 | - | 4.53 | 117,311 |
| Geography by Letter - L | 0 | - | 4.43 | 147,598 |
| Geography by Letter - M | 0 | - | 4.49 | 117,612 |
| Geography by Letter - N | 0 | - | 4.51 | 126,219 |
| Geography by Letter - P | 0 | - | 4.47 | 175,131 |
| Geography by Letter - R | 0 | - | 4.43 | 130,307 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,580 |
| Geography by Letter - U | 0 | - | 4.54 | 142,047 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,974 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,461 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 32,789 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,045 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,676 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,182 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,328 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,894 |
| Movies that Start with G | 0 | - | 4.48 | 68,237 |
| Movies that Start with I | 0 | - | 4.41 | 64,877 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,226 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,173 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,740 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,513 |
| Empires by Maps | 0 | - | 4.98 | 118,432 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,215 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,804 |
| Name the War | 0 | - | 4.37 | 200,748 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,403 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,826 |
| Famous Families #1 | 0 | - | 4.20 | 83,392 |
| Names for Warriors | 0 | - | 4.40 | 36,787 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,085 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,919 |
| Countries by Military Spending | 0 | - | 4.93 | 176,380 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,501 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,680 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,453 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,635 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,527 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,375 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,318 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,198 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,324 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,583 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,600 |
| Animals that Start with L | 0 | - | 4.47 | 101,242 |
| Animals that Start with P | 0 | - | 4.45 | 85,635 |
| Animals that Start with S | 0 | - | 4.49 | 86,796 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,619 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,566 |
| World Cities A-Z by Clue #1 | 0 | - | 4.55 | 65,849 |
| Islands A-Z | 0 | - | 4.46 | 116,738 |
| World Cities A-Z by Clue #2 | 0 | - | 4.45 | 57,348 |
| Human Body A-Z | 0 | - | 4.51 | 128,368 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,144 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,803 |
| Africa A-Z | 0 | - | 4.57 | 46,364 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,495 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,042 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,177 |
| 14th Century A-Z | 0 | - | 4.40 | 23,724 |
| Military History A-Z | 0 | - | 4.20 | 21,037 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,011 |
| Disney A-Z | 0 | - | 4.37 | 86,287 |
| Literature by Letter - A | 0 | - | 4.23 | 31,757 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,066 |
| Companies A-Z | 0 | - | 4.30 | 42,607 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,478 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,805 |
| Geography by Letter - G | 0 | - | 4.35 | 125,453 |
| Geography by Letter - F | 0 | - | 4.27 | 137,033 |
| Geography by Letter - J | 0 | - | 4.34 | 122,148 |
| Geography by Letter - O | 0 | - | 4.37 | 128,970 |
| Geography by Letter - V | 0 | - | 4.39 | 120,861 |
| Geography by Letter - W | 0 | - | 4.39 | 114,176 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,650 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,016 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,862 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,107 |
| Geography Containing the Letter Z | 0 | - | 4.48 | 27,662 |
| Video Games A-Z | 0 | - | 4.08 | 38,682 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,070 |
| Movies that Start with A | 0 | - | 4.13 | 61,631 |
| Movies that Start with C | 0 | - | 4.30 | 61,570 |
| Movies that Start with B | 0 | - | 4.35 | 84,903 |
| Movies that Start with D | 0 | - | 4.34 | 68,216 |
| Movies that Start with E | 0 | - | 4.13 | 68,162 |
| Movies that Start with J | 0 | - | 4.18 | 75,906 |
| Movies that Start with L | 0 | - | 4.16 | 60,218 |
| Movies that Start with M | 0 | - | 4.28 | 48,055 |
| Movies that Start with N | 0 | - | 4.02 | 41,101 |
| Movies that Start with P | 0 | - | 4.25 | 53,993 |
| Movies that Start with R | 0 | - | 4.17 | 46,436 |
| Movies that Start with W | 0 | - | 4.07 | 44,127 |
| Movies that Start with T | 0 | - | 4.33 | 49,104 |
| Movies that Start with S | 0 | - | 4.35 | 56,260 |
| Movies that Start with F | 0 | - | 4.13 | 68,628 |
| Music by Letter - F | 0 | - | 4.48 | 26,820 |
| Music by Letter - A | 0 | - | 4.61 | 31,183 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,648 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,999 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,170 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,682 |
| Influential Women in History | 0 | - | 4.42 | 34,969 |
| Metals of Antiquity | 0 | - | 4.94 | 92,891 |
| Cradles of Civilization | 0 | - | 4.46 | 39,035 |
| Materials From History #1 | 0 | - | 4.56 | 50,583 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,153 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,167 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,281 |
| WWI... or WWII? | 0 | - | 4.85 | 140,605 |
| Oldest Things | 0 | - | 3.92 | 65,589 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,762 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,154 |
| Famous Explorers | 0 | - | 4.58 | 35,937 |
| Famous Empires by Description | 0 | - | 4.70 | 117,527 |
| Answers by Time Period | 0 | - | 4.63 | 55,261 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,844 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,488 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,649 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,780 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,832 |
| Middle East A-Z | 0 | - | 4.47 | 45,780 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,142 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,018 |
| Notable People of WWII | 0 | - | 4.53 | 85,315 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,416 |
| World War I Quiz | 0 | - | 4.78 | 100,246 |
| WWI A-Z | 0 | - | 4.50 | 38,020 |
| Most Important People in History | 0 | - | 3.98 | 50,385 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,062 |
| Star Wars A-Z | 0 | - | 4.46 | 87,152 |
| Monarchies of the World | 0 | - | 4.94 | 166,577 |
