| History by Letter - A | 0 | - | 4.50 | 138,415 |
| History by Letter - B | 0 | - | 4.48 | 155,951 |
| History by Letter - C | 0 | - | 4.71 | 153,525 |
| History by Letter - E | 0 | - | 4.50 | 127,223 |
| History by Letter - G | 0 | - | 4.48 | 110,536 |
| History by Letter - H | 0 | - | 4.42 | 123,305 |
| History by Letter - J | 0 | - | 4.49 | 139,772 |
| History by Letter - N | 0 | - | 4.44 | 94,147 |
| History by Letter - S | 0 | - | 4.46 | 84,846 |
| History by Letter - W | 0 | - | 4.45 | 98,396 |
| History by Letter - M | 0 | - | 4.55 | 109,075 |
| History by Letter - K | 0 | - | 4.48 | 92,045 |
| History by Letter - L | 0 | - | 4.47 | 102,190 |
| History by Letter - I | 0 | - | 4.48 | 94,907 |
| 19th Century A-Z | 0 | - | 4.82 | 34,336 |
| History by Letter - D | 0 | - | 4.34 | 125,692 |
| History by Letter - F | 0 | - | 4.18 | 104,119 |
| History by Letter - O | 0 | - | 4.29 | 91,002 |
| History by Letter - P | 0 | - | 4.37 | 98,371 |
| History by Letter - Q | 0 | - | 4.35 | 73,976 |
| History by Letter - R | 0 | - | 4.22 | 112,488 |
| History by Letter - T | 0 | - | 4.40 | 96,492 |
| History by Letter - U | 0 | - | 4.19 | 92,153 |
| History by Letter - V | 0 | - | 4.27 | 74,531 |
| History by Letter - Y | 0 | - | 4.28 | 80,830 |
| History by Letter - Z | 0 | - | 4.20 | 71,635 |
| The 3rd and 4th Century | 0 | - | 4.53 | 19,910 |
| Empires A-Z | 0 | - | 4.48 | 39,796 |
| Same Start and End Letter - History #1 | 0 | - | 4.12 | 23,388 |
| Same Start and End Letter - History #2 | 0 | - | 4.08 | 23,201 |
| Geography by Letter - T | 0 | - | 4.81 | 121,947 |
| People in History A-Z #1 | 0 | - | 4.65 | 90,800 |
| People in History A-Z #2 | 0 | - | 4.46 | 50,127 |
| People in History A-Z #3 | 0 | - | 4.47 | 42,289 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 68,764 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 91,740 |
| Geography by Letter on the World Map - C | 0 | - | 4.84 | 102,617 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 140,045 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 181,571 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 161,959 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 176,512 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 287,061 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 167,573 |
| 20th Century A-Z | 0 | - | 4.48 | 38,686 |
| Famous Firsts #1 | 0 | - | 4.42 | 65,778 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 66,264 |
| Invasions | 0 | - | 4.71 | 89,459 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 213,986 |
| Name an Official Language A-Z | 0 | - | 4.91 | 134,749 |
| Normandy D-Day Beaches | 0 | - | 4.81 | 36,620 |
| Territory Changes in World War I | 0 | - | 4.87 | 40,295 |
| Famous Empires in History | 0 | - | 4.82 | 103,474 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 109,268 |
| People Depicted in Paintings | 0 | - | 4.55 | 41,170 |
| 16th Century A-Z | 0 | - | 4.53 | 15,869 |
| 18th Century A-Z | 0 | - | 4.60 | 31,562 |
| NATO Military Alphabet | 0 | - | 4.98 | 486,930 |
| Disney A-Z | 0 | - | 4.41 | 78,035 |
| Geography by Letter - A | 0 | - | 4.70 | 191,717 |
| Geography by Letter - B | 0 | - | 4.57 | 164,609 |
| Geography by Letter - H | 0 | - | 4.72 | 133,277 |
| Geography by Letter - C | 0 | - | 4.50 | 141,546 |
| Geography by Letter - D | 0 | - | 4.47 | 135,129 |
| Geography by Letter - I | 0 | - | 4.43 | 109,761 |
| Geography by Letter - K | 0 | - | 4.55 | 105,614 |
| Geography by Letter - L | 0 | - | 4.45 | 134,173 |
| Geography by Letter - M | 0 | - | 4.48 | 104,675 |
| Geography by Letter - N | 0 | - | 4.53 | 114,075 |
| Geography by Letter - P | 0 | - | 4.43 | 151,283 |
| Geography by Letter - S #1 | 0 | - | 4.79 | 114,732 |
| Geography by Letter - U | 0 | - | 4.52 | 117,240 |
| Geography by Letter - W | 0 | - | 4.43 | 95,747 |
| Asian Geography By Letter - K | 0 | - | 4.77 | 55,107 |
| A to Z: Musical Terms | 0 | - | 4.44 | 37,655 |
| Geography A-Z #2 | 0 | - | 4.46 | 49,302 |
| Geography A-Z #5 | 0 | - | 4.42 | 34,733 |
| Geography A-Z #1 | 0 | - | 4.55 | 65,844 |
| Movies that Start with G | 0 | - | 4.51 | 64,518 |
| Movies that Start with I | 0 | - | 4.41 | 61,470 |
| Brand Logos That Start with A | 0 | - | 4.52 | 56,094 |
| Brand Logos That Start With B | 0 | - | 4.47 | 48,190 |
| Brand Logos That Start With M | 0 | - | 4.41 | 48,454 |
| WWII A-Z #1 | 0 | - | 4.79 | 93,355 |
| WWII A-Z #2 | 0 | - | 4.48 | 50,009 |
| Famous Battles Quiz | 0 | - | 4.25 | 46,653 |
| Name the War Quiz | 0 | - | 4.39 | 190,063 |
| Famous U.S. Generals | 0 | - | 4.25 | 36,972 |
| Religions by Country of Origin Quiz | 0 | - | 4.29 | 72,671 |
| Famous Families #1 | 0 | - | 4.25 | 79,386 |
| Names for Warriors | 0 | - | 4.40 | 34,566 |
| Famous Firsts #2 | 0 | - | 4.01 | 78,580 |
| People in History A-Z #5 | 0 | - | 4.08 | 29,965 |
| People in History A-Z #4 | 0 | - | 4.13 | 21,346 |
| Former Countries by Territory Map | 0 | - | 4.97 | 85,852 |
| Empires by Maps | 0 | - | 4.98 | 94,514 |
| Art Works Picture Quiz #1 | 0 | - | 4.50 | 96,801 |
| Art Works Picture Quiz #2 | 0 | - | 4.46 | 86,319 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 46,456 |
| The 15th Century | 0 | - | 4.41 | 41,916 |
| The 14th Century | 0 | - | 4.53 | 39,909 |
| The 13th Century | 0 | - | 4.44 | 33,895 |
| The 11th and 12th Century | 0 | - | 4.53 | 45,850 |
| 15th Century A-Z | 0 | - | 4.35 | 15,016 |
| 14th Century A-Z | 0 | - | 4.32 | 15,345 |
| 17th Century A-Z | 0 | - | 4.61 | 24,081 |
| Military History A-Z | 0 | - | 4.21 | 19,537 |
| Ye Olde Professions | 0 | - | 4.74 | 144,037 |
| Countries by Military Spending | 0 | - | 4.93 | 159,531 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,171,181 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.90 | 97,657 |
| Animals that Start with L | 0 | - | 4.43 | 94,202 |
| Animals that Start with P | 0 | - | 4.42 | 79,695 |
| Animals that Start with S | 0 | - | 4.49 | 80,368 |
| Geography by Letter on the World Map - B | 0 | - | 4.50 | 78,343 |
| World Cities A-Z #1 | 0 | - | 4.54 | 58,940 |
| Islands A-Z | 0 | - | 4.46 | 105,290 |
| World Cities A-Z #2 | 0 | - | 4.46 | 51,605 |
| Human Body A-Z | 0 | - | 4.49 | 108,274 |
| Africa A-Z | 0 | - | 4.54 | 43,742 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.71 | 61,575 |
| Ethnic Groups A-Z | 0 | - | 4.58 | 38,200 |
| Metals of Antiquity | 0 | - | 4.94 | 85,449 |
| Space Exploration Trivia | 0 | - | 4.36 | 33,496 |
| Oldest Things | 0 | - | 3.96 | 64,613 |
| Famous Homes - Who Lived There? | 0 | - | 4.07 | 26,171 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 13,303 |
| Years in History #1 - Multiple Choice | 0 | - | 4.83 | 62,942 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 136,719 |
| Classic Novels by Plot #2 | 0 | - | 4.81 | 31,134 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.41 | 13,939 |
| Companies A-Z | 0 | - | 4.32 | 41,412 |
| Top Five Exporting Partners by Country | 0 | - | 4.84 | 62,005 |
| Religion A-Z #1 | 0 | - | 4.30 | 58,664 |
| Religion A-Z #2 | 0 | - | 4.50 | 26,307 |
| Geography by Letter - E | 0 | - | 4.39 | 132,903 |
| Geography by Letter - G | 0 | - | 4.35 | 112,938 |
| Geography by Letter - F | 0 | - | 4.26 | 123,769 |
| Geography by Letter - J | 0 | - | 4.36 | 110,456 |
| Geography by Letter - O | 0 | - | 4.37 | 108,272 |
| Geography by Letter - R | 0 | - | 4.40 | 103,805 |
| Geography by Letter - V | 0 | - | 4.38 | 95,451 |
| Geography by Letter - Y | 0 | - | 4.36 | 91,181 |
| Geography by Letter - Z | 0 | - | 4.04 | 62,709 |
| Geography by Letter - Q | 0 | - | 4.33 | 51,620 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.20 | 33,220 |
| The Americas Geography by Letter - B | 0 | - | 4.51 | 48,902 |
| The Americas Geography by Letter - S | 0 | - | 4.56 | 41,565 |
| Video Games A-Z | 0 | - | 4.04 | 35,289 |
| Geography A-Z #3 | 0 | - | 4.21 | 36,696 |
| Middle East A-Z | 0 | - | 4.45 | 43,084 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.43 | 41,355 |
| Movies that Start with A | 0 | - | 4.11 | 58,323 |
| Movies that Start with C | 0 | - | 4.30 | 57,661 |
| Movies that Start with B | 0 | - | 4.36 | 80,282 |
| Movies that Start with D | 0 | - | 4.35 | 65,334 |
| Movies that Start with E | 0 | - | 4.16 | 65,208 |
| Movies that Start with J | 0 | - | 4.22 | 72,396 |
| Movies that Start with L | 0 | - | 4.17 | 57,656 |
| Movies that Start with M | 0 | - | 4.27 | 45,938 |
| Movies that Start with N | 0 | - | 4.06 | 39,157 |
| Movies that Start with P | 0 | - | 4.25 | 51,875 |
| Movies that Start with R | 0 | - | 4.13 | 43,688 |
| Movies that Start with W | 0 | - | 4.06 | 42,429 |
| Movies that Start with T | 0 | - | 4.37 | 46,731 |
| Movies that Start with S | 0 | - | 4.37 | 53,690 |
| Movies that Start with F | 0 | - | 4.15 | 65,759 |
| Music by Letter - F | 0 | - | 4.44 | 24,774 |
| Music by Letter - A | 0 | - | 4.60 | 28,798 |
| Brand Logos That Start With D | 0 | - | 4.34 | 49,460 |
| Brand Logos That Start With C | 0 | - | 4.13 | 40,458 |
| Brand Logos That Start With L | 0 | - | 4.36 | 47,405 |
| Brand Logos That Start With S | 0 | - | 4.35 | 44,769 |
| Google What's the Difference? - History | 0 | - | 4.21 | 43,480 |
| Cradles of Civilization | 0 | - | 4.41 | 32,338 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 656,149 |
| Art Works Picture Quiz #3 | 0 | - | 4.39 | 41,229 |
| Notable People of WWII | 0 | - | 4.52 | 80,103 |
| WWII Trivia #2 | 0 | - | 4.50 | 86,666 |
| World War I Quiz | 0 | - | 4.78 | 92,763 |
| WWI A-Z | 0 | - | 4.48 | 35,400 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 133,769 |
| Famous Explorers | 0 | - | 4.71 | 32,698 |
| Answers by Time Period | 0 | - | 4.49 | 42,658 |
| Territorial Accessions | 0 | - | 4.43 | 32,242 |
| History of France Quiz | 0 | - | 4.55 | 39,709 |
| Star Wars A-Z | 0 | - | 4.45 | 79,477 |
| Musical Acts by Letter - J | 0 | - | 4.19 | 70,342 |
| Musical Acts by Letter - M | 0 | - | 4.11 | 77,620 |
| Musical Acts by Letter - N | 0 | - | 4.03 | 56,679 |
| Musical Acts by Letter - P | 0 | - | 4.16 | 53,501 |
| Musical Acts by Letter - R | 0 | - | 4.26 | 70,165 |
| Musical Acts by Letter - A | 0 | - | 4.27 | 72,900 |
| Musical Acts by Letter - B | 0 | - | 4.28 | 64,236 |
| Musical Acts by Letter - C | 0 | - | 4.38 | 52,754 |
| Musical Acts by Letter - D | 0 | - | 4.09 | 46,561 |
| Musical Acts by Letter - E | 0 | - | 4.39 | 54,695 |
| Animals that Start with A | 0 | - | 4.23 | 104,076 |
| Animals that Start with B | 0 | - | 4.31 | 105,248 |
| Animals that Start with C | 0 | - | 4.21 | 84,907 |
| Animals that Start with D | 0 | - | 4.18 | 79,840 |
