| History by Letter - A | 0 | - | 4.51 | 153,231 |
| History by Letter - B | 0 | - | 4.45 | 172,538 |
| History by Letter - C | 0 | - | 4.70 | 171,801 |
| History by Letter - E | 0 | - | 4.51 | 140,873 |
| History by Letter - G | 0 | - | 4.46 | 122,356 |
| History by Letter - H | 0 | - | 4.45 | 136,972 |
| History by Letter - J | 0 | - | 4.51 | 154,311 |
| History by Letter - N | 0 | - | 4.45 | 104,247 |
| History by Letter - S | 0 | - | 4.47 | 94,547 |
| History by Letter - W | 0 | - | 4.45 | 109,718 |
| History by Letter - M | 0 | - | 4.54 | 120,049 |
| History by Letter - K | 0 | - | 4.50 | 101,540 |
| History by Letter - L | 0 | - | 4.50 | 112,284 |
| History by Letter - I | 0 | - | 4.46 | 104,573 |
| History by Letter - D | 0 | - | 4.40 | 138,007 |
| History by Letter - F | 0 | - | 4.18 | 114,635 |
| History by Letter - O | 0 | - | 4.32 | 99,668 |
| History by Letter - P | 0 | - | 4.36 | 108,001 |
| History by Letter - Q | 0 | - | 4.34 | 80,459 |
| History by Letter - R | 0 | - | 4.26 | 122,368 |
| History by Letter - T | 0 | - | 4.39 | 105,428 |
| History by Letter - U | 0 | - | 4.19 | 100,945 |
| History by Letter - V | 0 | - | 4.27 | 80,895 |
| History by Letter - Y | 0 | - | 4.27 | 87,413 |
| History by Letter - Z | 0 | - | 4.20 | 77,176 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,262 |
| Empires A-Z | 0 | - | 4.52 | 45,193 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,749 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,685 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 151,656 |
| Geography by Letter - T | 0 | - | 4.84 | 154,105 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,061 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,135 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,206 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,316 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,038 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,594 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,733 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,309 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,405 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,951 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,544 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,912 |
| 20th Century A-Z | 0 | - | 4.50 | 53,754 |
| 19th Century A-Z | 0 | - | 4.77 | 47,310 |
| 18th Century A-Z | 0 | - | 4.54 | 43,188 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,106 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,444 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,969 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,256 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,048 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,449 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,799 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,340 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,660 |
| 16th Century A-Z | 0 | - | 4.58 | 24,912 |
| 15th Century A-Z | 0 | - | 4.49 | 23,932 |
| 14th Century A-Z | 0 | - | 4.41 | 24,400 |
| 17th Century A-Z | 0 | - | 4.78 | 34,645 |
| NATO Military Alphabet | 0 | - | 4.98 | 560,281 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 802,676 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,004 |
| Geography by Letter - A | 0 | - | 4.74 | 211,815 |
| Geography by Letter - B | 0 | - | 4.56 | 184,842 |
| Geography by Letter - H | 0 | - | 4.69 | 150,494 |
| Geography by Letter - C | 0 | - | 4.47 | 158,883 |
| Geography by Letter - D | 0 | - | 4.50 | 150,701 |
| Geography by Letter - E | 0 | - | 4.42 | 147,777 |
| Geography by Letter - I | 0 | - | 4.42 | 122,153 |
| Geography by Letter - K | 0 | - | 4.53 | 118,511 |
| Geography by Letter - L | 0 | - | 4.43 | 148,681 |
| Geography by Letter - M | 0 | - | 4.49 | 118,785 |
| Geography by Letter - N | 0 | - | 4.51 | 127,347 |
| Geography by Letter - P | 0 | - | 4.47 | 176,198 |
| Geography by Letter - R | 0 | - | 4.43 | 131,861 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,745 |
| Geography by Letter - U | 0 | - | 4.53 | 143,275 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,177 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,673 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,352 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,938 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,373 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,611 |
| Movies that Start with G | 0 | - | 4.49 | 68,567 |
| Movies that Start with I | 0 | - | 4.41 | 65,183 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,384 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,011 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,680 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,998 |
| Name the War | 0 | - | 4.37 | 201,687 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,549 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,070 |
| Famous Families #1 | 0 | - | 4.20 | 83,613 |
| Names for Warriors | 0 | - | 4.40 | 36,940 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,046 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,045 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,849 |
| Empires by Maps | 0 | - | 4.98 | 120,540 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,160 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,356 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,753 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,743 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,406 |
| The 15th Century | 0 | - | 4.43 | 51,240 |
| The 14th Century | 0 | - | 4.55 | 49,327 |
| The 13th Century | 0 | - | 4.48 | 43,295 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,141 |
| Military History A-Z | 0 | - | 4.20 | 21,166 |
| Ye Olde Professions | 0 | - | 4.67 | 156,816 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,372 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,481 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,691 |
| Countries by Military Spending | 0 | - | 4.93 | 177,776 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,317,192 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,143 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,853 |
| Animals that Start with L | 0 | - | 4.47 | 102,102 |
| Animals that Start with P | 0 | - | 4.45 | 86,160 |
| Animals that Start with S | 0 | - | 4.49 | 87,369 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,493 |
| Geography by Letter on the World Map - C | 0 | - | 4.80 | 117,605 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,212 |
| Islands A-Z | 0 | - | 4.46 | 124,801 |
| Human Body A-Z | 0 | - | 4.51 | 129,194 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,598 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,638 |
| Africa A-Z | 0 | - | 4.57 | 46,612 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,802 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,310 |
| Metals of Antiquity | 0 | - | 4.95 | 93,455 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,736 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,367 |
| WWI... or WWII? | 0 | - | 4.85 | 142,285 |
| Oldest Things | 0 | - | 3.92 | 65,662 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,823 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,653 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,151 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,321 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,282 |
| Disney A-Z | 0 | - | 4.37 | 87,149 |
| Literature by Letter - A | 0 | - | 4.24 | 32,147 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,295 |
| Companies A-Z | 0 | - | 4.30 | 42,706 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,166 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,641 |
| Geography by Letter - G | 0 | - | 4.33 | 126,442 |
| Geography by Letter - F | 0 | - | 4.27 | 137,990 |
| Geography by Letter - J | 0 | - | 4.34 | 123,058 |
| Geography by Letter - O | 0 | - | 4.37 | 129,885 |
| Geography by Letter - V | 0 | - | 4.39 | 121,906 |
| Geography by Letter - W | 0 | - | 4.39 | 114,969 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,655 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,750 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,601 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,274 |
| Video Games A-Z | 0 | - | 4.08 | 39,013 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,273 |
| Middle East A-Z | 0 | - | 4.47 | 46,026 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,374 |
| Movies that Start with A | 0 | - | 4.13 | 61,895 |
| Movies that Start with C | 0 | - | 4.30 | 61,881 |
| Movies that Start with B | 0 | - | 4.36 | 85,257 |
| Movies that Start with D | 0 | - | 4.34 | 68,462 |
| Movies that Start with E | 0 | - | 4.13 | 68,395 |
| Movies that Start with J | 0 | - | 4.18 | 76,191 |
| Movies that Start with L | 0 | - | 4.16 | 60,448 |
| Movies that Start with M | 0 | - | 4.28 | 48,249 |
| Movies that Start with N | 0 | - | 4.02 | 41,271 |
| Movies that Start with P | 0 | - | 4.25 | 54,165 |
| Movies that Start with R | 0 | - | 4.17 | 46,667 |
| Movies that Start with W | 0 | - | 4.07 | 44,275 |
| Movies that Start with T | 0 | - | 4.34 | 49,322 |
| Movies that Start with S | 0 | - | 4.35 | 56,490 |
| Movies that Start with F | 0 | - | 4.13 | 68,880 |
| Music by Letter - F | 0 | - | 4.48 | 27,015 |
| Music by Letter - A | 0 | - | 4.61 | 31,400 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,050 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,599 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,706 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,217 |
| Brand Logos That Start With M | 0 | - | 4.40 | 62,905 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,667 |
| Influential Women in History | 0 | - | 4.42 | 35,671 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,247 |
| Cradles of Civilization | 0 | - | 4.46 | 39,708 |
| Materials From History #1 | 0 | - | 4.56 | 51,601 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,769 |
| Notable People of WWII | 0 | - | 4.53 | 85,940 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,184 |
| World War I Quiz | 0 | - | 4.78 | 101,305 |
| WWI A-Z | 0 | - | 4.50 | 38,353 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,965 |
| Famous Explorers | 0 | - | 4.58 | 36,182 |
| Famous Empires by Description | 0 | - | 4.73 | 118,482 |
| Answers by Time Period | 0 | - | 4.64 | 55,600 |
| History of France | 0 | - | 4.59 | 57,002 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,748 |
| Star Wars A-Z | 0 | - | 4.46 | 88,274 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,487 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,403 |
