| History by Letter - B | 0 | - | 4.48 | 155,781 |
| History by Letter - C | 0 | - | 4.71 | 153,347 |
| History by Letter - E | 0 | - | 4.50 | 127,073 |
| History by Letter - G | 0 | - | 4.48 | 110,378 |
| History by Letter - J | 0 | - | 4.49 | 139,603 |
| History by Letter - N | 0 | - | 4.44 | 94,051 |
| History by Letter - S | 0 | - | 4.46 | 84,758 |
| History by Letter - W | 0 | - | 4.45 | 98,237 |
| History by Letter - M | 0 | - | 4.55 | 108,962 |
| History by Letter - K | 0 | - | 4.48 | 91,932 |
| History by Letter - L | 0 | - | 4.47 | 102,078 |
| History by Letter - I | 0 | - | 4.51 | 94,799 |
| 19th Century A-Z | 0 | - | 4.82 | 34,297 |
| History by Letter - D | 0 | - | 4.34 | 125,566 |
| History by Letter - F | 0 | - | 4.18 | 104,038 |
| History by Letter - O | 0 | - | 4.30 | 90,916 |
| History by Letter - P | 0 | - | 4.37 | 98,279 |
| History by Letter - Q | 0 | - | 4.35 | 73,903 |
| History by Letter - R | 0 | - | 4.22 | 112,399 |
| History by Letter - T | 0 | - | 4.40 | 96,398 |
| History by Letter - U | 0 | - | 4.19 | 92,049 |
| History by Letter - V | 0 | - | 4.27 | 74,465 |
| History by Letter - Y | 0 | - | 4.28 | 80,751 |
| History by Letter - Z | 0 | - | 4.20 | 71,572 |
| The 3rd and 4th Century | 0 | - | 4.53 | 19,857 |
| History Containing the Letter Z | 0 | - | 4.44 | 14,980 |
| Empires A-Z | 0 | - | 4.48 | 39,744 |
| Same Start and End Letter - History #1 | 0 | - | 4.12 | 23,380 |
| Same Start and End Letter - History #2 | 0 | - | 4.08 | 23,175 |
| History Ending in Z | 0 | - | 4.35 | 12,482 |
| History Containing the Letter X | 0 | - | 4.28 | 13,790 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 107,188 |
| Geography by Letter - T | 0 | - | 4.82 | 121,730 |
| People in History A-Z #1 | 0 | - | 4.65 | 90,731 |
| People in History A-Z #2 | 0 | - | 4.46 | 50,094 |
| People in History A-Z #3 | 0 | - | 4.47 | 42,266 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 68,645 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 91,607 |
| Geography by Letter on the World Map - C | 0 | - | 4.84 | 102,464 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 139,989 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 181,392 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 161,487 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 176,287 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 286,857 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 167,049 |
| 20th Century A-Z | 0 | - | 4.48 | 38,645 |
| "Second Best" History Edition | 0 | - | 4.94 | 46,294 |
| Famous Empires in History | 0 | - | 4.83 | 103,261 |
| Famous Firsts #1 | 0 | - | 4.42 | 65,750 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 66,190 |
| Invasions | 0 | - | 4.71 | 89,335 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 213,722 |
| Name an Official Language A-Z | 0 | - | 4.91 | 134,550 |
| People Depicted in Paintings | 0 | - | 4.55 | 41,134 |
| Normandy D-Day Beaches | 0 | - | 4.81 | 36,575 |
| Territory Changes in World War I | 0 | - | 4.87 | 40,224 |
| 16th Century A-Z | 0 | - | 4.53 | 15,858 |
| 18th Century A-Z | 0 | - | 4.60 | 31,538 |
| Brand Logos That Start with A | 0 | - | 4.52 | 55,902 |
| Brand Logos That Start With B | 0 | - | 4.47 | 48,035 |
| Brand Logos That Start With M | 0 | - | 4.41 | 48,262 |
| NATO Military Alphabet | 0 | - | 4.98 | 485,885 |
| Disney A-Z | 0 | - | 4.41 | 77,936 |
| Geography by Letter - A | 0 | - | 4.70 | 191,529 |
| Geography by Letter - B | 0 | - | 4.57 | 164,427 |
| Geography by Letter - H | 0 | - | 4.72 | 133,129 |
| Geography by Letter - C | 0 | - | 4.50 | 141,219 |
| Geography by Letter - D | 0 | - | 4.47 | 134,985 |
| Geography by Letter - I | 0 | - | 4.43 | 109,650 |
| Geography by Letter - K | 0 | - | 4.55 | 105,504 |
| Geography by Letter - L | 0 | - | 4.45 | 134,006 |
| Geography by Letter - M | 0 | - | 4.48 | 104,556 |
| Geography by Letter - N | 0 | - | 4.53 | 113,898 |
| Geography by Letter - P | 0 | - | 4.43 | 151,150 |
| Geography by Letter - S #1 | 0 | - | 4.79 | 114,570 |
| Geography by Letter - U | 0 | - | 4.52 | 117,068 |
| Geography by Letter - W | 0 | - | 4.43 | 95,644 |
| Asian Geography By Letter - K | 0 | - | 4.77 | 54,991 |
| A to Z: Musical Terms | 0 | - | 4.44 | 37,618 |
| Geography A-Z #2 | 0 | - | 4.46 | 49,243 |
| Geography A-Z #5 | 0 | - | 4.42 | 34,697 |
| Geography A-Z #1 | 0 | - | 4.55 | 65,806 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 109,164 |
| Movies that Start with G | 0 | - | 4.51 | 64,475 |
| Movies that Start with I | 0 | - | 4.41 | 61,425 |
| Former Countries by Territory Map | 0 | - | 4.97 | 85,678 |
| Empires by Maps | 0 | - | 4.98 | 94,267 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 46,358 |
| Famous Battles Quiz | 0 | - | 4.25 | 46,643 |
| Name the War Quiz | 0 | - | 4.39 | 189,941 |
| Famous U.S. Generals | 0 | - | 4.25 | 36,962 |
| Religions by Country of Origin Quiz | 0 | - | 4.29 | 72,620 |
| Famous Families #1 | 0 | - | 4.25 | 79,351 |
| Names for Warriors | 0 | - | 4.40 | 34,545 |
| Famous Firsts #2 | 0 | - | 4.01 | 78,564 |
| People in History A-Z #5 | 0 | - | 4.08 | 29,955 |
| People in History A-Z #4 | 0 | - | 4.13 | 21,340 |
| Countries by Military Spending | 0 | - | 4.93 | 159,220 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.90 | 97,413 |
| Art Works Picture Quiz #1 | 0 | - | 4.50 | 96,746 |
| Art Works Picture Quiz #2 | 0 | - | 4.46 | 86,279 |
| WWII A-Z #1 | 0 | - | 4.80 | 93,276 |
| WWII A-Z #2 | 0 | - | 4.48 | 49,957 |
| People in History by Wikipedia Descriptions #1 | 0 | - | 4.46 | 32,267 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,169,617 |
| Animals that Start with L | 0 | - | 4.43 | 94,157 |
| Animals that Start with P | 0 | - | 4.42 | 79,656 |
| Animals that Start with S | 0 | - | 4.49 | 80,329 |
| Geography by Letter on the World Map - B | 0 | - | 4.50 | 78,240 |
| World Cities A-Z #1 | 0 | - | 4.54 | 58,910 |
| Islands A-Z | 0 | - | 4.46 | 105,167 |
| World Cities A-Z #2 | 0 | - | 4.46 | 51,577 |
| Human Body A-Z | 0 | - | 4.49 | 108,188 |
| Africa A-Z | 0 | - | 4.54 | 43,713 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.71 | 53,824 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.66 | 42,436 |
| Ethnic Groups A-Z | 0 | - | 4.58 | 38,158 |
| Space Exploration Trivia | 0 | - | 4.36 | 33,483 |
| 15th Century A-Z | 0 | - | 4.35 | 15,006 |
| 14th Century A-Z | 0 | - | 4.32 | 15,333 |
| 17th Century A-Z | 0 | - | 4.61 | 24,062 |
| Military History A-Z | 0 | - | 4.21 | 19,521 |
| Famous Generals - Non U.S. | 0 | - | 4.59 | 13,479 |
| Brand Logos That Start With D | 0 | - | 4.34 | 49,306 |
| Brand Logos That Start With C | 0 | - | 4.13 | 40,338 |
| Brand Logos That Start With L | 0 | - | 4.36 | 47,204 |
| Brand Logos That Start With S | 0 | - | 4.35 | 44,587 |
| Classic Novels by Plot #2 | 0 | - | 4.81 | 31,109 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.41 | 13,928 |
| Companies A-Z | 0 | - | 4.32 | 41,400 |
| Religion A-Z #1 | 0 | - | 4.30 | 58,608 |
| Religion A-Z #2 | 0 | - | 4.50 | 26,282 |
| Geography by Letter - E | 0 | - | 4.39 | 132,757 |
| Geography by Letter - G | 0 | - | 4.35 | 112,801 |
| Geography by Letter - F | 0 | - | 4.26 | 123,639 |
| Geography by Letter - J | 0 | - | 4.36 | 110,354 |
| Geography by Letter - O | 0 | - | 4.37 | 108,158 |
| Geography by Letter - R | 0 | - | 4.40 | 103,625 |
| Geography by Letter - V | 0 | - | 4.38 | 95,288 |
| Geography by Letter - Y | 0 | - | 4.36 | 91,078 |
| Geography by Letter - Z | 0 | - | 4.04 | 62,610 |
| Geography by Letter - Q | 0 | - | 4.33 | 51,540 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.20 | 33,197 |
| Geography Containing the Letter Q | 0 | - | 4.53 | 30,298 |
| Video Games A-Z | 0 | - | 4.04 | 35,257 |
| Geography A-Z #3 | 0 | - | 4.21 | 36,665 |
| Movies that Start with A | 0 | - | 4.11 | 58,284 |
| Movies that Start with C | 0 | - | 4.30 | 57,599 |
| Movies that Start with B | 0 | - | 4.36 | 80,229 |
| Movies that Start with D | 0 | - | 4.35 | 65,292 |
| Movies that Start with E | 0 | - | 4.16 | 65,165 |
| Movies that Start with J | 0 | - | 4.22 | 72,352 |
| Movies that Start with L | 0 | - | 4.17 | 57,623 |
| Movies that Start with M | 0 | - | 4.27 | 45,910 |
| Movies that Start with N | 0 | - | 4.06 | 39,126 |
| Movies that Start with P | 0 | - | 4.25 | 51,846 |
| Movies that Start with R | 0 | - | 4.13 | 43,653 |
| Movies that Start with W | 0 | - | 4.05 | 42,405 |
| Movies that Start with T | 0 | - | 4.37 | 46,699 |
| Movies that Start with S | 0 | - | 4.37 | 53,655 |
| Movies that Start with F | 0 | - | 4.15 | 65,728 |
| Music by Letter - F | 0 | - | 4.44 | 24,754 |
| Music by Letter - A | 0 | - | 4.60 | 28,767 |
| Metals of Antiquity | 0 | - | 4.94 | 85,390 |
| Cradles of Civilization | 0 | - | 4.41 | 32,252 |
| Materials From History #1 | 0 | - | 4.54 | 44,885 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 39,772 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 655,581 |
| WWI... or WWII? | 0 | - | 4.84 | 123,226 |
| Oldest Things | 0 | - | 3.96 | 64,604 |
| Famous Homes - Who Lived There? | 0 | - | 4.07 | 26,166 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 133,620 |
| Famous Explorers | 0 | - | 4.71 | 32,665 |
| Answers by Time Period | 0 | - | 4.49 | 42,626 |
| Territorial Accessions | 0 | - | 4.43 | 32,217 |
| Famous Firsts #3 - The United States | 0 | - | 4.17 | 13,294 |
| Years in History #1 - Multiple Choice | 0 | - | 4.83 | 62,871 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 136,539 |
| Top Five Exporting Partners by Country | 0 | - | 4.84 | 61,944 |
| The Americas Geography by Letter - B | 0 | - | 4.51 | 48,882 |
| The Americas Geography by Letter - S | 0 | - | 4.56 | 41,549 |
| Middle East A-Z | 0 | - | 4.45 | 43,061 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.43 | 41,324 |
| Google What's the Difference? - History | 0 | - | 4.21 | 43,443 |
| Art Works Picture Quiz #3 | 0 | - | 4.39 | 41,204 |
| Notable People of WWII | 0 | - | 4.52 | 80,043 |
| WWII Trivia #2 | 0 | - | 4.50 | 86,587 |
| World War I Quiz | 0 | - | 4.79 | 92,680 |
| WWI A-Z | 0 | - | 4.48 | 35,364 |
| Most Important People in History | 0 | - | 3.97 | 46,361 |
| People in History by Wikipedia Descriptions #3 | 0 | - | 4.53 | 27,353 |
| People in History by Wikipedia Descriptions #4 | 0 | - | 4.50 | 24,036 |
| Top Arms Exporting Countries | 0 | - | 4.95 | 76,404 |
| Star Wars A-Z | 0 | - | 4.45 | 79,317 |
| Monarchies of the World | 0 | - | 4.93 | 152,763 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,596 |
| Countries where the Sea Freezes | 0 | - | 4.91 | 81,296 |
| Largest Countries Without Deserts | 0 | - | 4.86 | 66,206 |
| Numbers Tile Select Quiz | 0 | - | 4.99 | 64,212 |
| Literature by Letter - A | 0 | - | 4.21 | 29,333 |
