| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,239 |
| Literature by Letter - A | 0 | - | 4.24 | 32,215 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,329 |
| Literature by Letter - D | 0 | - | 4.29 | 20,849 |
| Literature by Letter - C | 0 | - | 4.34 | 26,800 |
| Literature by Letter - F | 0 | - | 4.26 | 17,441 |
| Literature by Letter - E | 0 | - | 4.05 | 15,327 |
| Literature by Letter - H | 0 | - | 4.29 | 20,261 |
| Literature by Letter - I | 0 | - | 4.25 | 17,445 |
| Literature by Letter - L | 0 | - | 4.32 | 23,415 |
| Literature by Letter - M | 0 | - | 4.18 | 18,837 |
| Literature by Letter - P | 0 | - | 4.18 | 16,968 |
| Literature by Letter - O | 0 | - | 4.30 | 13,724 |
| Literature by Letter - J | 0 | - | 4.23 | 15,067 |
| Literature by Letter - N | 0 | - | 4.24 | 14,513 |
| Literature by Letter - R | 0 | - | 4.06 | 12,100 |
| Literature by Letter - T | 0 | - | 4.34 | 18,737 |
| Literature by Letter - U | 0 | - | 4.20 | 13,278 |
| Literature by Letter - V | 0 | - | 4.06 | 11,923 |
| Literature by Letter - W | 0 | - | 4.15 | 13,670 |
| Geography by Letter - T | 0 | - | 4.84 | 154,347 |
| Authors with Books Turned into Movies | 0 | - | 4.45 | 63,006 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 82,463 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,248 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,752 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,020 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,515 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,738 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,277 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,733 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,101 |
| Famous Literary Characters | 0 | - | 4.38 | 36,623 |
| Charlie and the Chocolate Factory | 0 | - | 4.45 | 16,314 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 40,927 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,605 |
| Classic Novels by Plot #1 | 0 | - | 4.40 | 73,651 |
| Who Wrote That Book #2 | 0 | - | 4.47 | 48,055 |
| 100 Books You Can't Do Without | 0 | - | 4.49 | 64,262 |
| Who Wrote That Book #1 | 0 | - | 4.47 | 103,547 |
| Literature by Letter - G | 0 | - | 3.91 | 14,784 |
| Literature by Letter - S | 0 | - | 3.94 | 12,102 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,648 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,274 |
| Book Titles by Synonyms #1 | 0 | - | 4.54 | 75,948 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.49 | 45,281 |
| NATO Military Alphabet | 0 | - | 4.98 | 561,290 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,038 |
| Geography by Letter - A | 0 | - | 4.74 | 212,044 |
| Geography by Letter - B | 0 | - | 4.56 | 185,034 |
| Geography by Letter - H | 0 | - | 4.69 | 150,664 |
| Geography by Letter - C | 0 | - | 4.47 | 159,062 |
| Geography by Letter - D | 0 | - | 4.50 | 150,883 |
| Geography by Letter - E | 0 | - | 4.42 | 147,934 |
| Geography by Letter - I | 0 | - | 4.42 | 122,278 |
| Geography by Letter - K | 0 | - | 4.53 | 118,643 |
| Geography by Letter - L | 0 | - | 4.43 | 148,833 |
| Geography by Letter - M | 0 | - | 4.49 | 118,912 |
| Geography by Letter - N | 0 | - | 4.51 | 127,469 |
| Geography by Letter - P | 0 | - | 4.47 | 176,369 |
| Geography by Letter - R | 0 | - | 4.43 | 132,038 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 140,900 |
| Geography by Letter - U | 0 | - | 4.53 | 143,427 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 58,218 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,405 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,985 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,412 |
| Empires A-Z | 0 | - | 4.52 | 45,267 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,665 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,416 |
| Movies that Start with G | 0 | - | 4.49 | 68,618 |
| Movies that Start with I | 0 | - | 4.41 | 65,231 |
| History by Letter - A | 0 | - | 4.51 | 153,406 |
| History by Letter - B | 0 | - | 4.45 | 172,719 |
| History by Letter - C | 0 | - | 4.70 | 172,010 |
| History by Letter - E | 0 | - | 4.51 | 141,025 |
| History by Letter - G | 0 | - | 4.46 | 122,484 |
| History by Letter - H | 0 | - | 4.45 | 137,104 |
| History by Letter - J | 0 | - | 4.51 | 154,480 |
| History by Letter - N | 0 | - | 4.45 | 104,362 |
| History by Letter - S | 0 | - | 4.47 | 94,657 |
| History by Letter - W | 0 | - | 4.45 | 109,847 |
| History by Letter - M | 0 | - | 4.54 | 120,173 |
| History by Letter - K | 0 | - | 4.50 | 101,652 |
| History by Letter - L | 0 | - | 4.50 | 112,414 |
| History by Letter - I | 0 | - | 4.46 | 104,692 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,619 |
| Authors of Children's Books | 0 | - | 4.23 | 20,012 |
| Books by City | 0 | - | 4.04 | 14,282 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.41 | 27,582 |
| Dewey Decimal System | 0 | - | 4.28 | 13,595 |
| Authors by Country | 0 | - | 4.40 | 32,213 |
| Nonfiction Books Quiz | 0 | - | 4.44 | 22,606 |
| 1984 the Book | 0 | - | 4.61 | 21,062 |
| Winnie-the-Pooh Characters | 0 | - | 4.46 | 28,633 |
| Nursery Rhymes Fill in the Blank | 0 | - | 4.14 | 40,505 |
| Countries by Military Spending | 0 | - | 4.93 | 178,340 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,108 |
| "Of Something" Book Titles | 0 | - | 4.45 | 48,157 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,319,435 |
| Animals that Start with L | 0 | - | 4.47 | 102,242 |
| Animals that Start with P | 0 | - | 4.45 | 86,295 |
| Animals that Start with S | 0 | - | 4.49 | 87,502 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,631 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 117,813 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,412 |
| Islands A-Z | 0 | - | 4.46 | 125,629 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,278 |
| Human Body A-Z | 0 | - | 4.51 | 129,359 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,074 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,737 |
| Africa A-Z | 0 | - | 4.57 | 46,673 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,359 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,166 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,207 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,253 |
| Books by Clue #2 | 0 | - | 4.43 | 26,714 |
| Disney A-Z | 0 | - | 4.37 | 87,246 |
| Companies A-Z | 0 | - | 4.30 | 42,721 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,667 |
| Geography by Letter - G | 0 | - | 4.33 | 126,571 |
| Geography by Letter - F | 0 | - | 4.27 | 138,130 |
| Geography by Letter - J | 0 | - | 4.34 | 123,196 |
| Geography by Letter - O | 0 | - | 4.37 | 130,021 |
| Geography by Letter - V | 0 | - | 4.39 | 122,062 |
| Geography by Letter - W | 0 | - | 4.39 | 115,082 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,787 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,833 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,697 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,305 |
| Video Games A-Z | 0 | - | 4.08 | 39,079 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,312 |
| Movies that Start with A | 0 | - | 4.13 | 61,942 |
| Movies that Start with C | 0 | - | 4.30 | 61,933 |
| Movies that Start with B | 0 | - | 4.36 | 85,307 |
| Movies that Start with D | 0 | - | 4.34 | 68,503 |
| Movies that Start with E | 0 | - | 4.13 | 68,434 |
| Movies that Start with J | 0 | - | 4.18 | 76,242 |
| Movies that Start with L | 0 | - | 4.16 | 60,478 |
| Movies that Start with M | 0 | - | 4.28 | 48,283 |
| Movies that Start with N | 0 | - | 4.02 | 41,299 |
| Movies that Start with P | 0 | - | 4.25 | 54,193 |
| Movies that Start with R | 0 | - | 4.17 | 46,693 |
| Movies that Start with W | 0 | - | 4.07 | 44,289 |
| Movies that Start with T | 0 | - | 4.34 | 49,355 |
| Movies that Start with S | 0 | - | 4.35 | 56,527 |
| Movies that Start with F | 0 | - | 4.13 | 68,927 |
| History by Letter - D | 0 | - | 4.40 | 138,143 |
| History by Letter - F | 0 | - | 4.18 | 114,746 |
| History by Letter - O | 0 | - | 4.32 | 99,763 |
| History by Letter - P | 0 | - | 4.36 | 108,110 |
| History by Letter - Q | 0 | - | 4.34 | 80,530 |
| History by Letter - R | 0 | - | 4.26 | 122,474 |
| History by Letter - T | 0 | - | 4.39 | 105,527 |
| History by Letter - U | 0 | - | 4.19 | 101,037 |
| History by Letter - V | 0 | - | 4.27 | 80,972 |
| History by Letter - Y | 0 | - | 4.27 | 87,484 |
| History by Letter - Z | 0 | - | 4.20 | 77,237 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,285 |
| Music by Letter - F | 0 | - | 4.48 | 27,047 |
| Music by Letter - A | 0 | - | 4.61 | 31,432 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,198 |
| Brand Logos That Start With D | 0 | - | 4.35 | 61,776 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,834 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,409 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,075 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,857 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.38 | 21,887 |
| Famous Literature Fractured | 0 | - | 4.05 | 9,751 |
| The 100 Greatest Novels | 0 | - | 3.72 | 41,835 |
| Bestselling Authors | 0 | - | 4.10 | 18,936 |
| Characters from Books #2 | 0 | - | 4.42 | 79,973 |
| Nursery Rhymes #2 | 0 | - | 4.22 | 15,468 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,589 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,235 |
| Middle East A-Z | 0 | - | 4.47 | 46,137 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,419 |
| 20th Century A-Z | 0 | - | 4.50 | 53,825 |
| 19th Century A-Z | 0 | - | 4.77 | 47,359 |
| 18th Century A-Z | 0 | - | 4.54 | 43,231 |
| Modern Library's 100 Best Novels | 0 | - | 3.93 | 11,476 |
| Books by Clue #1 | 0 | - | 4.36 | 25,799 |
| Literary Groups of Things | 0 | - | 4.26 | 30,658 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,867 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,425 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.37 | 14,306 |
| Hunger Games Trivia | 0 | - | 4.22 | 53,378 |
| The Hunger Games Districts Quiz | 0 | - | 4.21 | 31,872 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,012 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 181,689 |
| Star Wars A-Z | 0 | - | 4.46 | 88,428 |
| Monarchies of the World | 0 | - | 4.94 | 169,192 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,047 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 112,530 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 114,716 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 75,324 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.80 | 803,398 |
| Astronomy Quiz | 0 | - | 4.90 | 82,798 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,893 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,897 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,532 |
