| Classic Novels by Plot #2 | 0 | - | 4.81 | 31,104 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.41 | 13,926 |
| Literature by Letter - A | 0 | - | 4.21 | 29,332 |
| Literature by Letter - D | 0 | - | 4.24 | 18,719 |
| Literature by Letter - C | 0 | - | 4.32 | 24,449 |
| Literature by Letter - E | 0 | - | 4.02 | 13,502 |
| Literature by Letter - H | 0 | - | 4.22 | 16,610 |
| Literature by Letter - I | 0 | - | 4.19 | 13,889 |
| Literature by Letter - L | 0 | - | 4.31 | 21,657 |
| Literature by Letter - M | 0 | - | 4.19 | 17,252 |
| Literature by Letter - P | 0 | - | 4.15 | 15,509 |
| Literature by Letter - O | 0 | - | 4.28 | 12,362 |
| Literature by Letter - J | 0 | - | 4.20 | 13,553 |
| Literature by Letter - N | 0 | - | 4.20 | 13,088 |
| Literature by Letter - K | 0 | - | 4.12 | 11,132 |
| Literature by Letter - R | 0 | - | 4.02 | 10,827 |
| Literature by Letter - T | 0 | - | 4.35 | 17,191 |
| Literature by Letter - U | 0 | - | 4.18 | 12,094 |
| Literature by Letter - V | 0 | - | 4.04 | 10,702 |
| Literature by Letter - W | 0 | - | 4.12 | 12,457 |
| Geography by Letter - T | 0 | - | 4.82 | 121,694 |
| Authors with Books Turned into Movies | 0 | - | 4.47 | 58,445 |
| Classic Novels by Plot #1 | 0 | - | 4.42 | 67,945 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 68,632 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 91,590 |
| Geography by Letter on the World Map - C | 0 | - | 4.84 | 102,446 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 139,985 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 181,378 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 161,486 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 176,275 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 286,849 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 167,024 |
| Famous Literary Characters | 0 | - | 4.36 | 33,315 |
| Charlie and the Chocolate Factory | 0 | - | 4.43 | 14,665 |
| Literature Multiple Choice #1 | 0 | - | 4.54 | 37,085 |
| Literature Multiple Choice #2 | 0 | - | 4.42 | 31,950 |
| Who Wrote That Book #2 | 0 | - | 4.43 | 43,538 |
| 100 Books You Can't Do Without | 0 | - | 4.47 | 51,549 |
| Literature by Letter - G | 0 | - | 3.89 | 13,152 |
| Literature by Letter - S | 0 | - | 3.94 | 10,790 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 213,703 |
| 19th Century A-Z | 0 | - | 4.82 | 34,294 |
| Book Titles by Synonyms #1 | 0 | - | 4.72 | 71,022 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.44 | 41,847 |
| Brand Logos That Start with A | 0 | - | 4.52 | 55,888 |
| Brand Logos That Start With B | 0 | - | 4.47 | 48,025 |
| NATO Military Alphabet | 0 | - | 4.98 | 485,848 |
| Disney A-Z | 0 | - | 4.41 | 77,929 |
| Geography by Letter - A | 0 | - | 4.70 | 191,505 |
| Geography by Letter - B | 0 | - | 4.57 | 164,403 |
| Geography by Letter - H | 0 | - | 4.72 | 133,114 |
| Geography by Letter - C | 0 | - | 4.50 | 141,198 |
| Geography by Letter - D | 0 | - | 4.47 | 134,969 |
| Geography by Letter - I | 0 | - | 4.43 | 109,636 |
| Geography by Letter - K | 0 | - | 4.55 | 105,484 |
| Geography by Letter - L | 0 | - | 4.45 | 133,936 |
| Geography by Letter - M | 0 | - | 4.48 | 104,536 |
| Geography by Letter - N | 0 | - | 4.53 | 113,874 |
| Geography by Letter - P | 0 | - | 4.43 | 151,138 |
| Geography by Letter - S #1 | 0 | - | 4.79 | 114,549 |
| Geography by Letter - U | 0 | - | 4.52 | 117,047 |
| Geography by Letter - W | 0 | - | 4.43 | 95,630 |
| Asian Geography By Letter - K | 0 | - | 4.77 | 54,945 |
| A to Z: Musical Terms | 0 | - | 4.44 | 37,611 |
| Geography A-Z #2 | 0 | - | 4.46 | 49,239 |
| Geography A-Z #5 | 0 | - | 4.42 | 34,697 |
| Geography A-Z #1 | 0 | - | 4.55 | 65,803 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 109,158 |
| Movies that Start with G | 0 | - | 4.51 | 64,471 |
| Movies that Start with I | 0 | - | 4.41 | 61,420 |
| History by Letter - A | 0 | - | 4.50 | 138,255 |
| History by Letter - B | 0 | - | 4.48 | 155,760 |
| History by Letter - C | 0 | - | 4.71 | 153,320 |
| History by Letter - E | 0 | - | 4.50 | 127,057 |
| History by Letter - G | 0 | - | 4.48 | 110,303 |
| History by Letter - H | 0 | - | 4.42 | 123,125 |
| History by Letter - J | 0 | - | 4.49 | 139,583 |
| History by Letter - N | 0 | - | 4.44 | 94,038 |
| History by Letter - S | 0 | - | 4.46 | 84,750 |
| History by Letter - W | 0 | - | 4.45 | 98,218 |
| History by Letter - M | 0 | - | 4.55 | 108,949 |
| History by Letter - K | 0 | - | 4.48 | 91,920 |
| History by Letter - L | 0 | - | 4.47 | 102,065 |
| History by Letter - I | 0 | - | 4.51 | 94,782 |
| Authors of Children's Books | 0 | - | 4.21 | 19,380 |
| Dewey Decimal System | 0 | - | 4.28 | 13,116 |
| Nonfiction Books Quiz | 0 | - | 4.51 | 21,012 |
| Who Wrote That Book #1 | 0 | - | 4.40 | 85,416 |
| 1984 the Book | 0 | - | 4.62 | 20,013 |
| Winnie-the-Pooh Characters | 0 | - | 4.41 | 27,706 |
| Nursery Rhymes Quiz | 0 | - | 4.26 | 39,495 |
| Countries by Military Spending | 0 | - | 4.93 | 159,201 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.90 | 97,378 |
| "Of Something" Book Titles | 0 | - | 4.43 | 45,424 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,169,438 |
| Animals that Start with L | 0 | - | 4.43 | 94,151 |
| Animals that Start with P | 0 | - | 4.42 | 79,654 |
| Animals that Start with S | 0 | - | 4.49 | 80,326 |
| Geography by Letter on the World Map - B | 0 | - | 4.50 | 78,228 |
| World Cities A-Z #1 | 0 | - | 4.54 | 58,907 |
| Islands A-Z | 0 | - | 4.46 | 105,153 |
| World Cities A-Z #2 | 0 | - | 4.46 | 51,575 |
| Human Body A-Z | 0 | - | 4.49 | 108,182 |
| Africa A-Z | 0 | - | 4.54 | 43,710 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.71 | 53,822 |
| People in History A-Z #1 | 0 | - | 4.65 | 90,722 |
| People in History A-Z #2 | 0 | - | 4.46 | 50,090 |
| People in History A-Z #3 | 0 | - | 4.47 | 42,262 |
| Brand Logos That Start With D | 0 | - | 4.34 | 49,286 |
| Brand Logos That Start With C | 0 | - | 4.13 | 40,327 |
| Brand Logos That Start With L | 0 | - | 4.36 | 47,188 |
| Companies A-Z | 0 | - | 4.32 | 41,399 |
| Religion A-Z #1 | 0 | - | 4.30 | 58,601 |
| Religion A-Z #2 | 0 | - | 4.50 | 26,280 |
| Geography by Letter - E | 0 | - | 4.39 | 132,737 |
| Geography by Letter - G | 0 | - | 4.35 | 112,791 |
| Geography by Letter - F | 0 | - | 4.26 | 123,623 |
| Geography by Letter - J | 0 | - | 4.36 | 110,341 |
| Geography by Letter - O | 0 | - | 4.37 | 108,142 |
| Geography by Letter - R | 0 | - | 4.40 | 103,598 |
| Geography by Letter - V | 0 | - | 4.38 | 95,268 |
| Geography by Letter - Y | 0 | - | 4.36 | 91,065 |
| Geography by Letter - Z | 0 | - | 4.04 | 62,599 |
| Geography by Letter - Q | 0 | - | 4.33 | 51,528 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.20 | 33,195 |
| Video Games A-Z | 0 | - | 4.04 | 35,253 |
| Geography A-Z #3 | 0 | - | 4.21 | 36,662 |
| Movies that Start with A | 0 | - | 4.11 | 58,279 |
| Movies that Start with C | 0 | - | 4.30 | 57,594 |
| Movies that Start with B | 0 | - | 4.36 | 80,224 |
| Movies that Start with D | 0 | - | 4.35 | 65,287 |
| Movies that Start with E | 0 | - | 4.16 | 65,162 |
| Movies that Start with J | 0 | - | 4.22 | 72,345 |
| Movies that Start with L | 0 | - | 4.17 | 57,621 |
| Movies that Start with M | 0 | - | 4.27 | 45,907 |
| Movies that Start with N | 0 | - | 4.06 | 39,126 |
| Movies that Start with P | 0 | - | 4.25 | 51,842 |
| Movies that Start with R | 0 | - | 4.13 | 43,650 |
| Movies that Start with W | 0 | - | 4.05 | 42,402 |
| Movies that Start with T | 0 | - | 4.37 | 46,698 |
| Movies that Start with S | 0 | - | 4.37 | 53,652 |
| Movies that Start with F | 0 | - | 4.15 | 65,724 |
| History by Letter - D | 0 | - | 4.34 | 125,547 |
| History by Letter - F | 0 | - | 4.18 | 104,022 |
| History by Letter - O | 0 | - | 4.30 | 90,906 |
| History by Letter - P | 0 | - | 4.37 | 98,272 |
| History by Letter - Q | 0 | - | 4.35 | 73,895 |
| History by Letter - R | 0 | - | 4.22 | 112,388 |
| History by Letter - T | 0 | - | 4.40 | 96,388 |
| History by Letter - U | 0 | - | 4.19 | 92,037 |
| History by Letter - V | 0 | - | 4.27 | 74,461 |
| History by Letter - Y | 0 | - | 4.28 | 80,744 |
| History by Letter - Z | 0 | - | 4.20 | 71,566 |
| The 3rd and 4th Century | 0 | - | 4.53 | 19,854 |
| Music by Letter - F | 0 | - | 4.44 | 24,750 |
| Music by Letter - A | 0 | - | 4.60 | 28,766 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.40 | 26,189 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.39 | 20,871 |
| Famous Literature Fractured | 0 | - | 4.06 | 8,906 |
| The 100 Greatest Novels | 0 | - | 3.76 | 39,746 |
| Authors by Country Quiz | 0 | - | 4.35 | 30,921 |
| Bestselling Authors Quiz | 0 | - | 4.09 | 17,398 |
| Nursery Rhymes #2 | 0 | - | 4.26 | 14,974 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 136,519 |
| Top Five Exporting Partners by Country | 0 | - | 4.84 | 61,937 |
| The Americas Geography by Letter - B | 0 | - | 4.51 | 48,879 |
| The Americas Geography by Letter - S | 0 | - | 4.56 | 41,545 |
| Middle East A-Z | 0 | - | 4.45 | 43,058 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.43 | 41,321 |
| 20th Century A-Z | 0 | - | 4.48 | 38,643 |
| Modern Library's 100 Best Novels | 0 | - | 4.00 | 10,487 |
| Books by City | 0 | - | 3.98 | 13,422 |
| Books by Clue #1 | 0 | - | 4.40 | 24,484 |
| Books by Clue #2 | 0 | - | 4.39 | 25,228 |
| Literary Groups of Things | 0 | - | 4.22 | 29,181 |
| 5-Letter Literature Chain | 0 | - | 4.32 | 51,735 |
| 4-Letter Literature Chain | 0 | - | 4.38 | 39,828 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.31 | 13,596 |
| Hunger Games Trivia | 0 | - | 4.33 | 49,032 |
| Top Arms Exporting Countries | 0 | - | 4.95 | 76,397 |
| Star Wars A-Z | 0 | - | 4.45 | 79,305 |
| Monarchies of the World | 0 | - | 4.93 | 152,748 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,581 |
| Countries where the Sea Freezes | 0 | - | 4.91 | 81,282 |
| Largest Countries Without Deserts | 0 | - | 4.86 | 66,197 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.78 | 700,930 |
| A Quiz About Buddhism | 0 | - | 4.81 | 16,707 |
| Astronomy Quiz | 0 | - | 4.87 | 64,349 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 87,222 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.90 | 57,822 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.88 | 91,301 |
| Musical Acts by Letter - J | 0 | - | 4.19 | 69,323 |
| Musical Acts by Letter - M | 0 | - | 4.14 | 77,413 |
| Musical Acts by Letter - N | 0 | - | 4.03 | 56,549 |
| Musical Acts by Letter - P | 0 | - | 4.16 | 53,372 |
| Musical Acts by Letter - R | 0 | - | 4.26 | 70,039 |
| Musical Acts by Letter - A | 0 | - | 4.27 | 72,710 |
| Musical Acts by Letter - B | 0 | - | 4.28 | 64,062 |
| Musical Acts by Letter - C | 0 | - | 4.38 | 52,612 |
| Musical Acts by Letter - D | 0 | - | 4.09 | 46,420 |
