| History by Letter - A | 0 | - | 4.51 | 153,484 |
| History by Letter - B | 0 | - | 4.45 | 172,795 |
| History by Letter - C | 0 | - | 4.70 | 172,086 |
| History by Letter - E | 0 | - | 4.51 | 141,086 |
| History by Letter - G | 0 | - | 4.46 | 122,534 |
| History by Letter - H | 0 | - | 4.45 | 137,176 |
| History by Letter - J | 0 | - | 4.51 | 154,551 |
| History by Letter - N | 0 | - | 4.45 | 104,407 |
| History by Letter - S | 0 | - | 4.47 | 94,708 |
| History by Letter - W | 0 | - | 4.45 | 109,912 |
| History by Letter - M | 0 | - | 4.54 | 120,218 |
| History by Letter - K | 0 | - | 4.50 | 101,697 |
| History by Letter - L | 0 | - | 4.50 | 112,472 |
| History by Letter - I | 0 | - | 4.46 | 104,739 |
| History by Letter - D | 0 | - | 4.40 | 138,210 |
| History by Letter - F | 0 | - | 4.18 | 114,796 |
| History by Letter - O | 0 | - | 4.32 | 99,804 |
| History by Letter - P | 0 | - | 4.36 | 108,168 |
| History by Letter - Q | 0 | - | 4.34 | 80,568 |
| History by Letter - R | 0 | - | 4.26 | 122,516 |
| History by Letter - T | 0 | - | 4.39 | 105,562 |
| History by Letter - U | 0 | - | 4.19 | 101,079 |
| History by Letter - V | 0 | - | 4.27 | 81,012 |
| History by Letter - Y | 0 | - | 4.27 | 87,530 |
| History by Letter - Z | 0 | - | 4.20 | 77,270 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,295 |
| Empires A-Z | 0 | - | 4.52 | 45,301 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,770 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,726 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 154,286 |
| Geography by Letter - T | 0 | - | 4.84 | 154,503 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,221 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,236 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,276 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,608 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,418 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,826 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,143 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,592 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,876 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,401 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,816 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,167 |
| 20th Century A-Z | 0 | - | 4.50 | 53,851 |
| 19th Century A-Z | 0 | - | 4.77 | 47,377 |
| 18th Century A-Z | 0 | - | 4.54 | 43,245 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,242 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,604 |
| People in History A-Z #5 | 0 | - | 4.09 | 32,016 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,828 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,387 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,524 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,946 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,464 |
| People Depicted in Paintings | 0 | - | 4.55 | 44,733 |
| 16th Century A-Z | 0 | - | 4.58 | 24,954 |
| 15th Century A-Z | 0 | - | 4.49 | 23,968 |
| 14th Century A-Z | 0 | - | 4.41 | 24,441 |
| 17th Century A-Z | 0 | - | 4.78 | 34,692 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,715 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,926 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,055 |
| Geography by Letter - A | 0 | - | 4.74 | 212,207 |
| Geography by Letter - B | 0 | - | 4.56 | 185,214 |
| Geography by Letter - H | 0 | - | 4.69 | 150,789 |
| Geography by Letter - C | 0 | - | 4.47 | 159,214 |
| Geography by Letter - D | 0 | - | 4.50 | 151,232 |
| Geography by Letter - E | 0 | - | 4.42 | 148,071 |
| Geography by Letter - I | 0 | - | 4.42 | 122,369 |
| Geography by Letter - K | 0 | - | 4.53 | 118,733 |
| Geography by Letter - L | 0 | - | 4.43 | 148,996 |
| Geography by Letter - M | 0 | - | 4.49 | 119,025 |
| Geography by Letter - N | 0 | - | 4.51 | 127,564 |
| Geography by Letter - P | 0 | - | 4.47 | 176,466 |
| Geography by Letter - R | 0 | - | 4.43 | 132,152 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,000 |
| Geography by Letter - U | 0 | - | 4.53 | 143,528 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,246 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,714 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,431 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,010 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,429 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,688 |
| Movies that Start with G | 0 | - | 4.49 | 68,661 |
| Movies that Start with I | 0 | - | 4.41 | 65,267 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,151 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,769 |
| Famous Battles Quiz | 0 | - | 4.21 | 49,050 |
| Name the War | 0 | - | 4.37 | 202,438 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,583 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,318 |
| Famous Families #1 | 0 | - | 4.20 | 83,667 |
| Names for Warriors | 0 | - | 4.40 | 36,991 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,302 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,089 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,201 |
| Empires by Maps | 0 | - | 4.98 | 121,068 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,528 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,597 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,860 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,915 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,484 |
| The 15th Century | 0 | - | 4.43 | 51,274 |
| The 14th Century | 0 | - | 4.55 | 49,358 |
| The 13th Century | 0 | - | 4.48 | 43,332 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,189 |
| Military History A-Z | 0 | - | 4.20 | 21,199 |
| Ye Olde Professions | 0 | - | 4.63 | 157,100 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,414 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,512 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,723 |
| Countries by Military Spending | 0 | - | 4.93 | 178,493 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,320,628 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,336 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,251 |
| Animals that Start with L | 0 | - | 4.47 | 102,282 |
| Animals that Start with P | 0 | - | 4.45 | 86,332 |
| Animals that Start with S | 0 | - | 4.49 | 87,534 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,754 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,147 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,471 |
| Islands A-Z | 0 | - | 4.46 | 125,999 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,333 |
| Human Body A-Z | 0 | - | 4.51 | 129,415 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,564 |
| Africa A-Z | 0 | - | 4.57 | 46,697 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,014 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,389 |
| Metals of Antiquity | 0 | - | 4.95 | 93,653 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,897 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,419 |
| WWI... or WWII? | 0 | - | 4.85 | 142,716 |
| Oldest Things | 0 | - | 3.92 | 65,680 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,837 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,859 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,178 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,433 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,293 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,839 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,883 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,491 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,158 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,936 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,775 |
| Disney A-Z | 0 | - | 4.37 | 87,306 |
| Literature by Letter - A | 0 | - | 4.24 | 32,247 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,351 |
| Companies A-Z | 0 | - | 4.30 | 42,730 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,270 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,685 |
| Geography by Letter - G | 0 | - | 4.33 | 126,680 |
| Geography by Letter - F | 0 | - | 4.27 | 138,281 |
| Geography by Letter - J | 0 | - | 4.34 | 123,288 |
| Geography by Letter - O | 0 | - | 4.37 | 130,114 |
| Geography by Letter - V | 0 | - | 4.39 | 122,167 |
| Geography by Letter - W | 0 | - | 4.39 | 115,160 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,865 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,911 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,774 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,317 |
| Video Games A-Z | 0 | - | 4.05 | 39,116 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,324 |
| Middle East A-Z | 0 | - | 4.47 | 46,163 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,444 |
| Movies that Start with A | 0 | - | 4.13 | 61,975 |
| Movies that Start with C | 0 | - | 4.30 | 61,970 |
| Movies that Start with B | 0 | - | 4.36 | 85,400 |
| Movies that Start with D | 0 | - | 4.34 | 68,531 |
| Movies that Start with E | 0 | - | 4.13 | 68,467 |
| Movies that Start with J | 0 | - | 4.18 | 76,275 |
| Movies that Start with L | 0 | - | 4.16 | 60,500 |
| Movies that Start with M | 0 | - | 4.28 | 48,308 |
| Movies that Start with N | 0 | - | 4.02 | 41,316 |
| Movies that Start with P | 0 | - | 4.25 | 54,211 |
| Movies that Start with R | 0 | - | 4.17 | 46,719 |
| Movies that Start with W | 0 | - | 4.07 | 44,310 |
| Movies that Start with T | 0 | - | 4.34 | 49,381 |
| Movies that Start with S | 0 | - | 4.35 | 56,552 |
| Movies that Start with F | 0 | - | 4.13 | 68,958 |
| Music by Letter - F | 0 | - | 4.48 | 27,059 |
| Music by Letter - A | 0 | - | 4.61 | 31,451 |
| Influential Women in History | 0 | - | 4.42 | 36,134 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,304 |
| Cradles of Civilization | 0 | - | 4.46 | 40,102 |
| Materials From History #1 | 0 | - | 4.56 | 51,877 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,800 |
| Notable People of WWII | 0 | - | 4.53 | 86,051 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,336 |
| World War I Quiz | 0 | - | 4.78 | 101,487 |
| WWI A-Z | 0 | - | 4.51 | 38,460 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,263 |
| Famous Explorers | 0 | - | 4.58 | 36,268 |
| Famous Empires by Description | 0 | - | 4.73 | 118,718 |
| Answers by Time Period | 0 | - | 4.64 | 55,726 |
| History of France | 0 | - | 4.61 | 57,322 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,759 |
| Star Wars A-Z | 0 | - | 4.46 | 88,486 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,569 |
| Musical Acts by Letter - M | 0 | - | 4.15 | 93,560 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 68,421 |
