| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,465 |
| Literature by Letter - A | 0 | - | 4.24 | 32,298 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,377 |
| Literature by Letter - D | 0 | - | 4.29 | 20,909 |
| Literature by Letter - C | 0 | - | 4.34 | 26,860 |
| Literature by Letter - F | 0 | - | 4.26 | 17,496 |
| Literature by Letter - E | 0 | - | 4.05 | 15,382 |
| Literature by Letter - H | 0 | - | 4.29 | 20,403 |
| Literature by Letter - I | 0 | - | 4.26 | 17,660 |
| Literature by Letter - L | 0 | - | 4.32 | 23,462 |
| Literature by Letter - P | 0 | - | 4.18 | 17,011 |
| Literature by Letter - O | 0 | - | 4.30 | 13,759 |
| Literature by Letter - J | 0 | - | 4.23 | 15,114 |
| Literature by Letter - N | 0 | - | 4.24 | 14,551 |
| Literature by Letter - K | 0 | - | 4.13 | 12,552 |
| Literature by Letter - R | 0 | - | 4.06 | 12,129 |
| Literature by Letter - T | 0 | - | 4.33 | 18,768 |
| Literature by Letter - U | 0 | - | 4.20 | 13,317 |
| Literature by Letter - V | 0 | - | 4.06 | 11,956 |
| Literature by Letter - W | 0 | - | 4.15 | 13,705 |
| Geography by Letter - T | 0 | - | 4.84 | 154,801 |
| Authors with Books Turned into Movies | 0 | - | 4.45 | 63,122 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,782 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,604 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,924 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,377 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,708 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,566 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,608 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,999 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,283 |
| Famous Literary Characters | 0 | - | 4.38 | 36,755 |
| Charlie and the Chocolate Factory | 0 | - | 4.45 | 16,380 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 41,019 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,674 |
| Classic Novels by Plot #1 | 0 | - | 4.40 | 73,815 |
| Who Wrote That Book #2 | 0 | - | 4.47 | 48,174 |
| 100 Books You Can't Do Without | 0 | - | 4.49 | 64,437 |
| Who Wrote That Book #1 | 0 | - | 4.47 | 103,733 |
| Literature by Letter - G | 0 | - | 3.91 | 14,842 |
| Literature by Letter - S | 0 | - | 3.94 | 12,132 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,172 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,624 |
| Book Titles by Synonyms #1 | 0 | - | 4.54 | 76,234 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.49 | 45,387 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,907 |
| NATO Military Alphabet | 0 | - | 4.98 | 562,959 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,089 |
| Geography by Letter - A | 0 | - | 4.74 | 212,488 |
| Geography by Letter - B | 0 | - | 4.56 | 185,480 |
| Geography by Letter - H | 0 | - | 4.69 | 151,023 |
| Geography by Letter - C | 0 | - | 4.48 | 159,454 |
| Geography by Letter - D | 0 | - | 4.50 | 151,447 |
| Geography by Letter - E | 0 | - | 4.42 | 148,278 |
| Geography by Letter - I | 0 | - | 4.42 | 122,555 |
| Geography by Letter - K | 0 | - | 4.54 | 118,908 |
| Geography by Letter - L | 0 | - | 4.44 | 149,377 |
| Geography by Letter - M | 0 | - | 4.49 | 119,392 |
| Geography by Letter - N | 0 | - | 4.51 | 127,756 |
| Geography by Letter - P | 0 | - | 4.47 | 176,677 |
| Geography by Letter - R | 0 | - | 4.43 | 132,380 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,214 |
| Geography by Letter - U | 0 | - | 4.53 | 143,704 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,287 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,499 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,071 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,468 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,737 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,517 |
| Movies that Start with G | 0 | - | 4.49 | 68,745 |
| Movies that Start with I | 0 | - | 4.41 | 65,349 |
| History by Letter - A | 0 | - | 4.51 | 153,649 |
| History by Letter - B | 0 | - | 4.45 | 172,994 |
| History by Letter - C | 0 | - | 4.70 | 172,317 |
| History by Letter - E | 0 | - | 4.51 | 141,246 |
| History by Letter - G | 0 | - | 4.46 | 122,681 |
| History by Letter - H | 0 | - | 4.45 | 137,331 |
| History by Letter - J | 0 | - | 4.51 | 154,708 |
| History by Letter - N | 0 | - | 4.45 | 104,517 |
| History by Letter - S | 0 | - | 4.47 | 94,796 |
| History by Letter - W | 0 | - | 4.45 | 110,023 |
| History by Letter - M | 0 | - | 4.54 | 120,452 |
| History by Letter - K | 0 | - | 4.50 | 101,805 |
| History by Letter - L | 0 | - | 4.50 | 112,592 |
| History by Letter - I | 0 | - | 4.46 | 104,834 |
| Authors of Children's Books | 0 | - | 4.24 | 20,030 |
| Books by City | 0 | - | 4.04 | 14,314 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.41 | 27,613 |
| Dewey Decimal System | 0 | - | 4.28 | 13,608 |
| Authors by Country | 0 | - | 4.40 | 32,257 |
| Nonfiction Books Quiz | 0 | - | 4.44 | 22,684 |
| 1984 the Book | 0 | - | 4.61 | 21,085 |
| Winnie-the-Pooh Characters | 0 | - | 4.46 | 28,657 |
| Nursery Rhymes Fill in the Blank | 0 | - | 4.14 | 40,521 |
| Countries by Military Spending | 0 | - | 4.93 | 178,729 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,455 |
| "Of Something" Book Titles | 0 | - | 4.45 | 48,212 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,322,698 |
| Animals that Start with L | 0 | - | 4.47 | 102,337 |
| Animals that Start with P | 0 | - | 4.45 | 86,387 |
| Animals that Start with S | 0 | - | 4.49 | 87,583 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,900 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,312 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,581 |
| Islands A-Z | 0 | - | 4.46 | 126,672 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,426 |
| Human Body A-Z | 0 | - | 4.51 | 129,514 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,824 |
| Africa A-Z | 0 | - | 4.57 | 46,733 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,440 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,562 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,379 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,383 |
| Books by Clue #2 | 0 | - | 4.43 | 26,753 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.43 | 17,508 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,434 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,991 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,987 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,679 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,312 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,079 |
| Disney A-Z | 0 | - | 4.37 | 87,393 |
| Companies A-Z | 0 | - | 4.30 | 42,751 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,706 |
| Geography by Letter - G | 0 | - | 4.33 | 126,873 |
| Geography by Letter - F | 0 | - | 4.28 | 138,601 |
| Geography by Letter - J | 0 | - | 4.35 | 123,477 |
| Geography by Letter - O | 0 | - | 4.37 | 130,291 |
| Geography by Letter - V | 0 | - | 4.39 | 122,347 |
| Geography by Letter - W | 0 | - | 4.39 | 115,306 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,005 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,041 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,926 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,349 |
| Video Games A-Z | 0 | - | 4.05 | 39,167 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,356 |
| Movies that Start with A | 0 | - | 4.13 | 62,071 |
| Movies that Start with C | 0 | - | 4.30 | 62,059 |
| Movies that Start with B | 0 | - | 4.36 | 85,631 |
| Movies that Start with D | 0 | - | 4.34 | 68,604 |
| Movies that Start with E | 0 | - | 4.13 | 68,547 |
| Movies that Start with J | 0 | - | 4.18 | 76,360 |
| Movies that Start with L | 0 | - | 4.16 | 60,557 |
| Movies that Start with M | 0 | - | 4.28 | 48,358 |
| Movies that Start with N | 0 | - | 4.02 | 41,355 |
| Movies that Start with P | 0 | - | 4.25 | 54,252 |
| Movies that Start with R | 0 | - | 4.17 | 46,770 |
| Movies that Start with W | 0 | - | 4.07 | 44,347 |
| Movies that Start with T | 0 | - | 4.34 | 49,422 |
| Movies that Start with S | 0 | - | 4.35 | 56,599 |
| Movies that Start with F | 0 | - | 4.13 | 69,029 |
| History by Letter - D | 0 | - | 4.40 | 138,359 |
| History by Letter - F | 0 | - | 4.18 | 114,902 |
| History by Letter - O | 0 | - | 4.32 | 99,905 |
| History by Letter - P | 0 | - | 4.36 | 108,266 |
| History by Letter - Q | 0 | - | 4.34 | 80,650 |
| History by Letter - R | 0 | - | 4.26 | 122,626 |
| History by Letter - T | 0 | - | 4.39 | 105,645 |
| History by Letter - U | 0 | - | 4.19 | 101,165 |
| History by Letter - V | 0 | - | 4.27 | 81,089 |
| History by Letter - Y | 0 | - | 4.27 | 87,601 |
| History by Letter - Z | 0 | - | 4.20 | 77,339 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,315 |
| Music by Letter - F | 0 | - | 4.47 | 27,097 |
| Music by Letter - A | 0 | - | 4.61 | 31,488 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.38 | 21,911 |
| Famous Literature Fractured | 0 | - | 4.05 | 9,774 |
| The 100 Greatest Novels | 0 | - | 3.74 | 41,882 |
| Bestselling Authors | 0 | - | 4.10 | 19,010 |
| Characters from Books #2 | 0 | - | 4.42 | 80,068 |
| Nursery Rhymes #2 | 0 | - | 4.22 | 15,487 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,109 |
| Top Five Exporting Partners by Country | 0 | - | 4.86 | 67,343 |
| Middle East A-Z | 0 | - | 4.47 | 46,200 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,478 |
| 20th Century A-Z | 0 | - | 4.50 | 53,907 |
| 19th Century A-Z | 0 | - | 4.77 | 47,414 |
| 18th Century A-Z | 0 | - | 4.54 | 43,273 |
| Modern Library's 100 Best Novels | 0 | - | 3.93 | 11,503 |
| Books by Clue #1 | 0 | - | 4.36 | 25,831 |
| Literary Groups of Things | 0 | - | 4.27 | 30,697 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,923 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,472 |
| Hunger Games Trivia | 0 | - | 4.22 | 53,479 |
| The Hunger Games Districts Quiz | 0 | - | 4.21 | 31,922 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,652 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,916 |
| Star Wars A-Z | 0 | - | 4.46 | 88,632 |
| Monarchies of the World | 0 | - | 4.94 | 169,730 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,597 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 112,844 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 114,991 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 75,474 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.80 | 804,167 |
| Astronomy Quiz | 0 | - | 4.90 | 83,031 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,995 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 66,061 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,774 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,663 |
| Musical Acts by Letter - M | 0 | - | 4.15 | 93,706 |
