| History by Letter - B | 0 | - | 4.45 | 172,716 |
| History by Letter - C | 0 | - | 4.70 | 172,005 |
| History by Letter - E | 0 | - | 4.51 | 141,022 |
| History by Letter - G | 0 | - | 4.46 | 122,484 |
| History by Letter - H | 0 | - | 4.45 | 137,103 |
| History by Letter - J | 0 | - | 4.51 | 154,480 |
| History by Letter - N | 0 | - | 4.45 | 104,358 |
| History by Letter - S | 0 | - | 4.47 | 94,656 |
| History by Letter - W | 0 | - | 4.45 | 109,847 |
| History by Letter - M | 0 | - | 4.54 | 120,172 |
| History by Letter - K | 0 | - | 4.50 | 101,651 |
| History by Letter - L | 0 | - | 4.50 | 112,414 |
| History by Letter - I | 0 | - | 4.46 | 104,690 |
| History by Letter - D | 0 | - | 4.40 | 138,142 |
| History by Letter - F | 0 | - | 4.18 | 114,746 |
| History by Letter - O | 0 | - | 4.32 | 99,761 |
| History by Letter - P | 0 | - | 4.36 | 108,108 |
| History by Letter - Q | 0 | - | 4.34 | 80,529 |
| History by Letter - R | 0 | - | 4.26 | 122,473 |
| History by Letter - T | 0 | - | 4.39 | 105,526 |
| History by Letter - U | 0 | - | 4.19 | 101,037 |
| History by Letter - V | 0 | - | 4.27 | 80,970 |
| History by Letter - Y | 0 | - | 4.27 | 87,482 |
| History by Letter - Z | 0 | - | 4.20 | 77,236 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,283 |
| History Containing the Letter X | 0 | - | 4.47 | 27,079 |
| History Containing the Letter Z | 0 | - | 4.53 | 23,474 |
| Empires A-Z | 0 | - | 4.52 | 45,266 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,713 |
| History Ending in Z | 0 | - | 4.35 | 13,551 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 153,822 |
| Geography by Letter - T | 0 | - | 4.84 | 154,343 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,165 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,206 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,253 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,461 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,246 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,750 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,015 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,512 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,731 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,269 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,728 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,098 |
| 20th Century A-Z | 0 | - | 4.50 | 53,824 |
| 19th Century A-Z | 0 | - | 4.77 | 47,358 |
| 18th Century A-Z | 0 | - | 4.54 | 43,231 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,431 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,193 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,525 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,000 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,640 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,271 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,703 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,496 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,889 |
| 16th Century A-Z | 0 | - | 4.58 | 24,940 |
| 15th Century A-Z | 0 | - | 4.49 | 23,959 |
| 14th Century A-Z | 0 | - | 4.41 | 24,421 |
| 17th Century A-Z | 0 | - | 4.78 | 34,677 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,269 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,037 |
| Geography by Letter - A | 0 | - | 4.74 | 212,039 |
| Geography by Letter - B | 0 | - | 4.56 | 185,026 |
| Geography by Letter - H | 0 | - | 4.69 | 150,658 |
| Geography by Letter - C | 0 | - | 4.47 | 159,058 |
| Geography by Letter - D | 0 | - | 4.50 | 150,864 |
| Geography by Letter - E | 0 | - | 4.42 | 147,931 |
| Geography by Letter - I | 0 | - | 4.42 | 122,274 |
| Geography by Letter - K | 0 | - | 4.53 | 118,639 |
| Geography by Letter - L | 0 | - | 4.43 | 148,828 |
| Geography by Letter - M | 0 | - | 4.49 | 118,909 |
| Geography by Letter - N | 0 | - | 4.51 | 127,466 |
| Geography by Letter - P | 0 | - | 4.47 | 176,365 |
| Geography by Letter - R | 0 | - | 4.43 | 132,029 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,896 |
| Geography by Letter - U | 0 | - | 4.53 | 143,424 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,218 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,692 |
| Geography Containing the Letter Q | 0 | - | 4.56 | 43,024 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,404 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,984 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,412 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,663 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,416 |
| Movies that Start with G | 0 | - | 4.49 | 68,614 |
| Movies that Start with I | 0 | - | 4.41 | 65,231 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,616 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,074 |
| Empires by Maps | 0 | - | 4.98 | 120,917 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,864 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,028 |
| Name the War | 0 | - | 4.37 | 201,854 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,569 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,114 |
| Famous Families #1 | 0 | - | 4.20 | 83,650 |
| Names for Warriors | 0 | - | 4.40 | 36,967 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,082 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,465 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,068 |
| Countries by Military Spending | 0 | - | 4.93 | 178,332 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,238 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,100 |
| Name a Minecraft Mob A-Z | 0 | - | 4.88 | 42,994 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,458 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,523 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,828 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,115 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,741 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,403 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,501 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,711 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,319,371 |
| Animals that Start with L | 0 | - | 4.47 | 102,233 |
| Animals that Start with P | 0 | - | 4.45 | 86,288 |
| Animals that Start with S | 0 | - | 4.49 | 87,494 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,626 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 117,797 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,407 |
| Islands A-Z | 0 | - | 4.46 | 125,607 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,275 |
| Human Body A-Z | 0 | - | 4.51 | 129,354 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,037 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,735 |
| Africa A-Z | 0 | - | 4.57 | 46,672 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,937 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,358 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,397 |
| Military History A-Z | 0 | - | 4.20 | 21,189 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,170 |
| Disney A-Z | 0 | - | 4.37 | 87,245 |
| Literature by Letter - A | 0 | - | 4.24 | 32,212 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,328 |
| Companies A-Z | 0 | - | 4.30 | 42,721 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,664 |
| Geography by Letter - G | 0 | - | 4.33 | 126,568 |
| Geography by Letter - F | 0 | - | 4.27 | 138,126 |
| Geography by Letter - J | 0 | - | 4.34 | 123,192 |
| Geography by Letter - O | 0 | - | 4.37 | 130,020 |
| Geography by Letter - V | 0 | - | 4.39 | 122,060 |
| Geography by Letter - W | 0 | - | 4.39 | 115,079 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,785 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,829 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,692 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,304 |
| Geography Containing the Letter Z | 0 | - | 4.49 | 27,900 |
| Video Games A-Z | 0 | - | 4.08 | 39,076 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,312 |
| Movies that Start with A | 0 | - | 4.13 | 61,941 |
| Movies that Start with C | 0 | - | 4.30 | 61,932 |
| Movies that Start with B | 0 | - | 4.36 | 85,306 |
| Movies that Start with D | 0 | - | 4.34 | 68,501 |
| Movies that Start with E | 0 | - | 4.13 | 68,433 |
| Movies that Start with J | 0 | - | 4.18 | 76,240 |
| Movies that Start with L | 0 | - | 4.16 | 60,478 |
| Movies that Start with M | 0 | - | 4.28 | 48,282 |
| Movies that Start with N | 0 | - | 4.02 | 41,299 |
| Movies that Start with P | 0 | - | 4.25 | 54,193 |
| Movies that Start with R | 0 | - | 4.17 | 46,693 |
| Movies that Start with W | 0 | - | 4.07 | 44,289 |
| Movies that Start with T | 0 | - | 4.34 | 49,355 |
| Movies that Start with S | 0 | - | 4.35 | 56,526 |
| Movies that Start with F | 0 | - | 4.13 | 68,924 |
| Music by Letter - F | 0 | - | 4.48 | 27,047 |
| Music by Letter - A | 0 | - | 4.61 | 31,432 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,192 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,772 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,832 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,408 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,070 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,856 |
| Influential Women in History | 0 | - | 4.42 | 36,006 |
| Metals of Antiquity | 0 | - | 4.95 | 93,597 |
| Cradles of Civilization | 0 | - | 4.46 | 39,990 |
| Materials From History #1 | 0 | - | 4.56 | 51,809 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,846 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,482 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,413 |
| WWI... or WWII? | 0 | - | 4.85 | 142,563 |
| Oldest Things | 0 | - | 3.92 | 65,671 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,832 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,169 |
| Famous Explorers | 0 | - | 4.58 | 36,241 |
| Famous Empires by Description | 0 | - | 4.73 | 118,637 |
| Answers by Time Period | 0 | - | 4.64 | 55,680 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,668 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,386 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,579 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,229 |
| Middle East A-Z | 0 | - | 4.47 | 46,132 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,418 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,287 |
| Notable People of WWII | 0 | - | 4.53 | 86,006 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,285 |
| World War I Quiz | 0 | - | 4.78 | 101,436 |
| WWI A-Z | 0 | - | 4.51 | 38,423 |
| Most Important People in History | 0 | - | 3.98 | 50,787 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,755 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,000 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 181,661 |
