| History by Letter - A | 0 | - | 4.51 | 153,223 |
| History by Letter - B | 0 | - | 4.45 | 172,528 |
| History by Letter - C | 0 | - | 4.70 | 171,790 |
| History by Letter - E | 0 | - | 4.51 | 140,864 |
| History by Letter - G | 0 | - | 4.46 | 122,347 |
| History by Letter - H | 0 | - | 4.45 | 136,964 |
| History by Letter - J | 0 | - | 4.51 | 154,298 |
| History by Letter - N | 0 | - | 4.45 | 104,243 |
| History by Letter - S | 0 | - | 4.47 | 94,541 |
| History by Letter - W | 0 | - | 4.45 | 109,713 |
| History by Letter - M | 0 | - | 4.54 | 120,040 |
| History by Letter - K | 0 | - | 4.50 | 101,534 |
| History by Letter - L | 0 | - | 4.50 | 112,276 |
| History by Letter - I | 0 | - | 4.46 | 104,570 |
| History by Letter - D | 0 | - | 4.40 | 138,002 |
| History by Letter - F | 0 | - | 4.18 | 114,628 |
| History by Letter - O | 0 | - | 4.32 | 99,663 |
| History by Letter - P | 0 | - | 4.36 | 107,996 |
| History by Letter - Q | 0 | - | 4.34 | 80,458 |
| History by Letter - R | 0 | - | 4.26 | 122,365 |
| History by Letter - T | 0 | - | 4.39 | 105,425 |
| History by Letter - U | 0 | - | 4.19 | 100,941 |
| History by Letter - V | 0 | - | 4.27 | 80,888 |
| History by Letter - Y | 0 | - | 4.27 | 87,412 |
| History by Letter - Z | 0 | - | 4.20 | 77,173 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,257 |
| Empires A-Z | 0 | - | 4.52 | 45,190 |
| Same Start and End Letter - History #1 | 0 | - | 4.18 | 24,749 |
| Same Start and End Letter - History #2 | 0 | - | 4.13 | 25,682 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 151,376 |
| Geography by Letter - T | 0 | - | 4.84 | 154,091 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,053 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,132 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,203 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,307 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,022 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,589 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,714 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,295 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,385 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,927 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,530 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,900 |
| 20th Century A-Z | 0 | - | 4.50 | 53,749 |
| 19th Century A-Z | 0 | - | 4.77 | 47,304 |
| 18th Century A-Z | 0 | - | 4.54 | 43,184 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,100 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,436 |
| People in History A-Z #5 | 0 | - | 4.09 | 31,965 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,224 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,036 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,445 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,795 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,333 |
| People Depicted in Paintings | 0 | - | 4.54 | 44,657 |
| 16th Century A-Z | 0 | - | 4.58 | 24,907 |
| 15th Century A-Z | 0 | - | 4.49 | 23,931 |
| 14th Century A-Z | 0 | - | 4.41 | 24,397 |
| 17th Century A-Z | 0 | - | 4.78 | 34,642 |
| NATO Military Alphabet | 0 | - | 4.98 | 560,226 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 802,631 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,001 |
| Geography by Letter - A | 0 | - | 4.74 | 211,794 |
| Geography by Letter - B | 0 | - | 4.56 | 184,830 |
| Geography by Letter - H | 0 | - | 4.69 | 150,484 |
| Geography by Letter - C | 0 | - | 4.47 | 158,874 |
| Geography by Letter - D | 0 | - | 4.50 | 150,696 |
| Geography by Letter - E | 0 | - | 4.42 | 147,770 |
| Geography by Letter - I | 0 | - | 4.42 | 122,147 |
| Geography by Letter - K | 0 | - | 4.53 | 118,505 |
| Geography by Letter - L | 0 | - | 4.43 | 148,674 |
| Geography by Letter - M | 0 | - | 4.49 | 118,777 |
| Geography by Letter - N | 0 | - | 4.51 | 127,341 |
| Geography by Letter - P | 0 | - | 4.47 | 176,186 |
| Geography by Letter - R | 0 | - | 4.43 | 131,847 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,734 |
| Geography by Letter - U | 0 | - | 4.53 | 143,265 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,175 |
| Geography Containing the Letter X | 0 | - | 4.42 | 34,667 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,347 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,934 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,369 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,609 |
| Movies that Start with G | 0 | - | 4.49 | 68,566 |
| Movies that Start with I | 0 | - | 4.41 | 65,179 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,373 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,004 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,676 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,997 |
| Name the War | 0 | - | 4.37 | 201,678 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,547 |
| Famous Firsts #1 | 0 | - | 4.40 | 69,067 |
| Famous Families #1 | 0 | - | 4.20 | 83,612 |
| Names for Warriors | 0 | - | 4.40 | 36,939 |
| Famous Firsts #2 | 0 | - | 4.01 | 81,040 |
| People in History A-Z #4 | 0 | - | 4.11 | 23,042 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,829 |
| Empires by Maps | 0 | - | 4.98 | 120,519 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,145 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,346 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,750 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,732 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,401 |
| The 15th Century | 0 | - | 4.43 | 51,235 |
| The 14th Century | 0 | - | 4.55 | 49,323 |
| The 13th Century | 0 | - | 4.48 | 43,289 |
| The 11th and 12th Century | 0 | - | 4.53 | 56,139 |
| Military History A-Z | 0 | - | 4.20 | 21,166 |
| Ye Olde Professions | 0 | - | 4.67 | 156,802 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.42 | 44,371 |
| People in History by Wikipedia Descriptions #2 | 0 | - | 4.42 | 39,479 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.50 | 36,688 |
| Countries by Military Spending | 0 | - | 4.93 | 177,762 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,317,048 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,138 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,842 |
| Animals that Start with L | 0 | - | 4.47 | 102,007 |
| Animals that Start with P | 0 | - | 4.45 | 86,148 |
| Animals that Start with S | 0 | - | 4.49 | 87,361 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,484 |
| Geography by Letter on the World Map - C | 0 | - | 4.80 | 117,589 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,200 |
| Islands A-Z | 0 | - | 4.46 | 124,737 |
| Human Body A-Z | 0 | - | 4.51 | 129,185 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,589 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,630 |
| Africa A-Z | 0 | - | 4.57 | 46,609 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,798 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,307 |
| Metals of Antiquity | 0 | - | 4.95 | 93,446 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,726 |
| Space Exploration Trivia | 0 | - | 4.38 | 35,366 |
| WWI... or WWII? | 0 | - | 4.85 | 142,268 |
| Oldest Things | 0 | - | 3.92 | 65,660 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,823 |
| Famous Firsts #3 - The United States | 0 | - | 4.19 | 14,652 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 15,148 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,314 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,260 |
| Disney A-Z | 0 | - | 4.37 | 87,138 |
| Literature by Letter - A | 0 | - | 4.24 | 32,138 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,291 |
| Companies A-Z | 0 | - | 4.30 | 42,705 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,158 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,637 |
| Geography by Letter - G | 0 | - | 4.33 | 126,434 |
| Geography by Letter - F | 0 | - | 4.27 | 137,988 |
| Geography by Letter - J | 0 | - | 4.34 | 123,050 |
| Geography by Letter - O | 0 | - | 4.37 | 129,878 |
| Geography by Letter - V | 0 | - | 4.39 | 121,898 |
| Geography by Letter - W | 0 | - | 4.39 | 114,964 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,648 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,744 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,594 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,274 |
| Video Games A-Z | 0 | - | 4.08 | 39,009 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,268 |
| Middle East A-Z | 0 | - | 4.47 | 46,023 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,372 |
| Movies that Start with A | 0 | - | 4.13 | 61,892 |
| Movies that Start with C | 0 | - | 4.30 | 61,877 |
| Movies that Start with B | 0 | - | 4.36 | 85,253 |
| Movies that Start with D | 0 | - | 4.34 | 68,459 |
| Movies that Start with E | 0 | - | 4.13 | 68,392 |
| Movies that Start with J | 0 | - | 4.18 | 76,189 |
| Movies that Start with L | 0 | - | 4.16 | 60,446 |
| Movies that Start with M | 0 | - | 4.28 | 48,249 |
| Movies that Start with N | 0 | - | 4.02 | 41,270 |
| Movies that Start with P | 0 | - | 4.25 | 54,164 |
| 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 | 49,321 |
| Movies that Start with S | 0 | - | 4.35 | 56,486 |
| Movies that Start with F | 0 | - | 4.13 | 68,878 |
| Music by Letter - F | 0 | - | 4.48 | 27,013 |
| Music by Letter - A | 0 | - | 4.61 | 31,399 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,040 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,592 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,698 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,205 |
| Brand Logos That Start With M | 0 | - | 4.40 | 62,896 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,661 |
| Influential Women in History | 0 | - | 4.42 | 35,631 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,244 |
| Cradles of Civilization | 0 | - | 4.46 | 39,679 |
| Materials From History #1 | 0 | - | 4.56 | 51,580 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,731 |
| Notable People of WWII | 0 | - | 4.53 | 85,939 |
| WWII Trivia #2 | 0 | - | 4.52 | 104,179 |
| World War I Quiz | 0 | - | 4.78 | 101,296 |
| WWI A-Z | 0 | - | 4.50 | 38,352 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,934 |
| Famous Explorers | 0 | - | 4.58 | 36,173 |
| Famous Empires by Description | 0 | - | 4.73 | 118,469 |
| Answers by Time Period | 0 | - | 4.64 | 55,585 |
| History of France | 0 | - | 4.59 | 56,996 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.41 | 30,746 |
| Star Wars A-Z | 0 | - | 4.46 | 88,265 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,484 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 93,398 |
