| History by Letter - B | 0 | - | 4.45 | 171,381 |
| History by Letter - C | 0 | - | 4.70 | 170,452 |
| History by Letter - E | 0 | - | 4.51 | 139,947 |
| History by Letter - G | 0 | - | 4.45 | 121,535 |
| History by Letter - H | 0 | - | 4.45 | 135,969 |
| History by Letter - J | 0 | - | 4.51 | 153,337 |
| History by Letter - N | 0 | - | 4.44 | 103,464 |
| History by Letter - S | 0 | - | 4.47 | 93,746 |
| History by Letter - W | 0 | - | 4.45 | 108,827 |
| History by Letter - M | 0 | - | 4.54 | 119,173 |
| History by Letter - K | 0 | - | 4.50 | 100,886 |
| History by Letter - L | 0 | - | 4.49 | 111,575 |
| History by Letter - I | 0 | - | 4.46 | 103,755 |
| History by Letter - D | 0 | - | 4.39 | 136,968 |
| History by Letter - F | 0 | - | 4.18 | 113,757 |
| History by Letter - O | 0 | - | 4.31 | 99,115 |
| History by Letter - P | 0 | - | 4.39 | 107,409 |
| History by Letter - Q | 0 | - | 4.34 | 80,015 |
| History by Letter - R | 0 | - | 4.26 | 121,733 |
| History by Letter - T | 0 | - | 4.39 | 104,935 |
| History by Letter - U | 0 | - | 4.19 | 100,418 |
| History by Letter - V | 0 | - | 4.27 | 80,420 |
| History by Letter - Y | 0 | - | 4.27 | 86,979 |
| History by Letter - Z | 0 | - | 4.18 | 76,779 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,128 |
| History Containing the Letter X | 0 | - | 4.47 | 26,945 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,356 |
| Empires A-Z | 0 | - | 4.51 | 44,865 |
| Same Start and End Letter - History #1 | 0 | - | 4.17 | 24,676 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,556 |
| History Ending in Z | 0 | - | 4.35 | 13,464 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 128,887 |
| Geography by Letter - T | 0 | - | 4.84 | 152,611 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,666 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,863 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,986 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,372 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 107,040 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,821 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,116 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,481 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,939 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,541 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,477 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,242 |
| 20th Century A-Z | 0 | - | 4.50 | 53,205 |
| 19th Century A-Z | 0 | - | 4.77 | 46,762 |
| 18th Century A-Z | 0 | - | 4.54 | 42,667 |
| "Second Best" History Edition | 0 | - | 4.93 | 62,023 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,614 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,969 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,822 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,135 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,918 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,405 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,144 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,271 |
| 16th Century A-Z | 0 | - | 4.58 | 24,406 |
| 15th Century A-Z | 0 | - | 4.49 | 23,410 |
| 14th Century A-Z | 0 | - | 4.41 | 23,788 |
| 17th Century A-Z | 0 | - | 4.78 | 34,186 |
| NATO Military Alphabet | 0 | - | 4.98 | 554,909 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 798,415 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,838 |
| Geography by Letter - A | 0 | - | 4.74 | 210,272 |
| Geography by Letter - B | 0 | - | 4.56 | 183,421 |
| Geography by Letter - H | 0 | - | 4.69 | 149,381 |
| Geography by Letter - C | 0 | - | 4.47 | 157,693 |
| Geography by Letter - D | 0 | - | 4.50 | 149,614 |
| Geography by Letter - E | 0 | - | 4.42 | 146,762 |
| Geography by Letter - I | 0 | - | 4.42 | 121,288 |
| Geography by Letter - K | 0 | - | 4.53 | 117,423 |
| Geography by Letter - L | 0 | - | 4.43 | 147,719 |
| Geography by Letter - M | 0 | - | 4.49 | 117,729 |
| Geography by Letter - N | 0 | - | 4.51 | 126,345 |
| Geography by Letter - P | 0 | - | 4.47 | 175,266 |
| Geography by Letter - R | 0 | - | 4.43 | 130,483 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,722 |
| Geography by Letter - U | 0 | - | 4.54 | 142,202 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,997 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,479 |
| Geography Containing the Letter Q | 0 | - | 4.55 | 32,821 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,110 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,713 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,204 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,368 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,949 |
| Movies that Start with G | 0 | - | 4.48 | 68,276 |
| Movies that Start with I | 0 | - | 4.41 | 64,918 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,397 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,308 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,890 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,747 |
| Empires by Maps | 0 | - | 4.98 | 118,741 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,308 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,832 |
| Name the War | 0 | - | 4.37 | 200,877 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,418 |
| Famous Firsts #1 | 0 | - | 4.40 | 68,840 |
| Famous Families #1 | 0 | - | 4.20 | 83,425 |
| Names for Warriors | 0 | - | 4.40 | 36,803 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,134 |
| People in History A-Z #4 | 0 | - | 4.10 | 22,937 |
| Countries by Military Spending | 0 | - | 4.93 | 176,541 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,577 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.91 | 119,822 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,549 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,766 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,560 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,455 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,368 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,232 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,355 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,605 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,306,374 |
| Animals that Start with L | 0 | - | 4.47 | 101,537 |
| Animals that Start with P | 0 | - | 4.45 | 85,765 |
| Animals that Start with S | 0 | - | 4.49 | 86,957 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,726 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,721 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 66,511 |
| Islands A-Z | 0 | - | 4.46 | 116,862 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 57,935 |
| Human Body A-Z | 0 | - | 4.51 | 128,587 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 34,601 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,872 |
| Africa A-Z | 0 | - | 4.57 | 46,401 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.64 | 53,004 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,072 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,201 |
| Military History A-Z | 0 | - | 4.20 | 21,053 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,021 |
| Disney A-Z | 0 | - | 4.37 | 86,620 |
| Literature by Letter - A | 0 | - | 4.23 | 31,778 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,076 |
| Companies A-Z | 0 | - | 4.30 | 42,621 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,503 |
| Geography by Letter - G | 0 | - | 4.35 | 125,566 |
| Geography by Letter - F | 0 | - | 4.27 | 137,146 |
| Geography by Letter - J | 0 | - | 4.34 | 122,237 |
| Geography by Letter - O | 0 | - | 4.37 | 129,085 |
| Geography by Letter - V | 0 | - | 4.39 | 120,984 |
| Geography by Letter - W | 0 | - | 4.39 | 114,273 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,750 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,106 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,945 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,129 |
| Geography Containing the Letter Z | 0 | - | 4.48 | 27,679 |
| Video Games A-Z | 0 | - | 4.08 | 38,732 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,095 |
| Movies that Start with A | 0 | - | 4.13 | 61,659 |
| Movies that Start with C | 0 | - | 4.30 | 61,609 |
| Movies that Start with B | 0 | - | 4.35 | 84,943 |
| Movies that Start with D | 0 | - | 4.34 | 68,243 |
| Movies that Start with E | 0 | - | 4.13 | 68,187 |
| Movies that Start with J | 0 | - | 4.18 | 75,940 |
| Movies that Start with L | 0 | - | 4.16 | 60,237 |
| Movies that Start with M | 0 | - | 4.28 | 48,080 |
| Movies that Start with N | 0 | - | 4.02 | 41,124 |
| Movies that Start with P | 0 | - | 4.25 | 54,016 |
| Movies that Start with R | 0 | - | 4.17 | 46,469 |
| Movies that Start with W | 0 | - | 4.07 | 44,144 |
| Movies that Start with T | 0 | - | 4.33 | 49,134 |
| Movies that Start with S | 0 | - | 4.35 | 56,284 |
| Movies that Start with F | 0 | - | 4.13 | 68,659 |
| Music by Letter - F | 0 | - | 4.48 | 26,853 |
| Music by Letter - A | 0 | - | 4.61 | 31,225 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,796 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,101 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,312 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,844 |
| Influential Women in History | 0 | - | 4.42 | 35,166 |
| Metals of Antiquity | 0 | - | 4.94 | 92,983 |
| Cradles of Civilization | 0 | - | 4.46 | 39,232 |
| Materials From History #1 | 0 | - | 4.56 | 51,116 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,241 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,744 |
| WWI... or WWII? | 0 | - | 4.85 | 140,822 |
| Oldest Things | 0 | - | 3.92 | 65,600 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,773 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,319 |
| Famous Explorers | 0 | - | 4.58 | 35,998 |
| Famous Empires by Description | 0 | - | 4.73 | 118,002 |
| Answers by Time Period | 0 | - | 4.63 | 55,316 |
| Famous Firsts #2 | 0 | - | 4.00 | 80,858 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 14,498 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,709 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,956 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,885 |
| Middle East A-Z | 0 | - | 4.47 | 45,831 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,180 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,053 |
| Notable People of WWII | 0 | - | 4.53 | 85,352 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,477 |
| World War I Quiz | 0 | - | 4.78 | 100,335 |
| WWI A-Z | 0 | - | 4.50 | 38,050 |
| Most Important People in History | 0 | - | 3.98 | 50,441 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,158 |
| Star Wars A-Z | 0 | - | 4.46 | 87,244 |
| Monarchies of the World | 0 | - | 4.94 | 166,833 |
