| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,535 |
| Literature by Letter - A | 0 | - | 4.24 | 32,333 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,398 |
| Literature by Letter - D | 0 | - | 4.29 | 20,939 |
| Literature by Letter - C | 0 | - | 4.34 | 26,887 |
| Literature by Letter - F | 0 | - | 4.26 | 17,530 |
| Literature by Letter - E | 0 | - | 4.05 | 15,416 |
| Literature by Letter - H | 0 | - | 4.29 | 20,477 |
| Literature by Letter - I | 0 | - | 4.26 | 17,755 |
| Literature by Letter - L | 0 | - | 4.32 | 23,485 |
| Literature by Letter - M | 0 | - | 4.18 | 18,904 |
| Literature by Letter - P | 0 | - | 4.18 | 17,033 |
| Literature by Letter - O | 0 | - | 4.30 | 13,779 |
| Literature by Letter - J | 0 | - | 4.23 | 15,142 |
| Literature by Letter - N | 0 | - | 4.24 | 14,572 |
| Literature by Letter - K | 0 | - | 4.13 | 12,573 |
| Literature by Letter - R | 0 | - | 4.06 | 12,154 |
| Literature by Letter - T | 0 | - | 4.33 | 18,786 |
| Literature by Letter - U | 0 | - | 4.20 | 13,335 |
| Literature by Letter - V | 0 | - | 4.06 | 11,978 |
| Literature by Letter - W | 0 | - | 4.15 | 13,729 |
| Geography by Letter - T | 0 | - | 4.84 | 155,005 |
| Authors with Books Turned into Movies | 0 | - | 4.45 | 63,151 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,934 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,770 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,057 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,572 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,860 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,835 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,867 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,185 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,421 |
| Famous Literary Characters | 0 | - | 4.38 | 36,784 |
| Charlie and the Chocolate Factory | 0 | - | 4.45 | 16,392 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 41,048 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,695 |
| Classic Novels by Plot #1 | 0 | - | 4.40 | 73,865 |
| Who Wrote That Book #2 | 0 | - | 4.47 | 48,208 |
| 100 Books You Can't Do Without | 0 | - | 4.49 | 64,498 |
| Who Wrote That Book #1 | 0 | - | 4.46 | 103,793 |
| Literature by Letter - G | 0 | - | 3.91 | 14,871 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,465 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,846 |
| Book Titles by Synonyms #1 | 0 | - | 4.54 | 76,303 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.49 | 45,424 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,072 |
| NATO Military Alphabet | 0 | - | 4.98 | 563,849 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,112 |
| Geography by Letter - A | 0 | - | 4.74 | 212,670 |
| Geography by Letter - B | 0 | - | 4.56 | 185,655 |
| Geography by Letter - H | 0 | - | 4.69 | 151,152 |
| Geography by Letter - C | 0 | - | 4.48 | 159,596 |
| Geography by Letter - D | 0 | - | 4.50 | 151,577 |
| Geography by Letter - E | 0 | - | 4.42 | 148,406 |
| Geography by Letter - I | 0 | - | 4.42 | 122,659 |
| Geography by Letter - K | 0 | - | 4.54 | 119,002 |
| Geography by Letter - L | 0 | - | 4.44 | 149,492 |
| Geography by Letter - M | 0 | - | 4.49 | 119,495 |
| Geography by Letter - N | 0 | - | 4.51 | 127,864 |
| Geography by Letter - P | 0 | - | 4.47 | 176,806 |
| Geography by Letter - R | 0 | - | 4.43 | 132,535 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,352 |
| Geography by Letter - U | 0 | - | 4.52 | 143,841 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,327 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,546 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,120 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,498 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,790 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,577 |
| Movies that Start with G | 0 | - | 4.49 | 68,791 |
| Movies that Start with I | 0 | - | 4.41 | 65,394 |
| History by Letter - A | 0 | - | 4.51 | 153,820 |
| History by Letter - B | 0 | - | 4.45 | 173,204 |
| History by Letter - C | 0 | - | 4.70 | 172,548 |
| History by Letter - E | 0 | - | 4.51 | 141,418 |
| History by Letter - G | 0 | - | 4.46 | 122,837 |
| History by Letter - H | 0 | - | 4.45 | 137,503 |
| History by Letter - J | 0 | - | 4.51 | 154,921 |
| History by Letter - N | 0 | - | 4.45 | 104,747 |
| History by Letter - S | 0 | - | 4.47 | 94,918 |
| History by Letter - W | 0 | - | 4.45 | 110,159 |
| History by Letter - M | 0 | - | 4.54 | 120,634 |
| History by Letter - K | 0 | - | 4.50 | 101,944 |
| History by Letter - L | 0 | - | 4.50 | 112,762 |
| History by Letter - I | 0 | - | 4.46 | 104,975 |
| Authors of Children's Books | 0 | - | 4.24 | 20,042 |
| Books by City | 0 | - | 4.04 | 14,324 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.41 | 27,625 |
| Dewey Decimal System | 0 | - | 4.28 | 13,608 |
| Authors by Country | 0 | - | 4.40 | 32,271 |
| Nonfiction Books Quiz | 0 | - | 4.44 | 22,703 |
| 1984 the Book | 0 | - | 4.61 | 21,096 |
| Winnie-the-Pooh Characters | 0 | - | 4.46 | 28,663 |
| Nursery Rhymes Fill in the Blank | 0 | - | 4.14 | 40,529 |
| Countries by Military Spending | 0 | - | 4.93 | 178,915 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,634 |
| "Of Something" Book Titles | 0 | - | 4.45 | 48,254 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,324,551 |
| Animals that Start with L | 0 | - | 4.47 | 102,400 |
| Animals that Start with P | 0 | - | 4.45 | 86,447 |
| Animals that Start with S | 0 | - | 4.49 | 87,642 |
| Geography by Letter on the World Map - B | 0 | - | 4.49 | 91,036 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,465 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 75,374 |
| Islands A-Z | 0 | - | 4.46 | 127,239 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,026 |
| Human Body A-Z | 0 | - | 4.51 | 129,600 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,937 |
| Africa A-Z | 0 | - | 4.57 | 46,756 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,486 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,654 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,440 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,422 |
| Books by Clue #2 | 0 | - | 4.43 | 26,766 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.43 | 17,617 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,568 |
| Brand Logos That Start With D | 0 | - | 4.36 | 62,125 |
| Brand Logos That Start With C | 0 | - | 4.20 | 50,072 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,830 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,446 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,201 |
| Disney A-Z | 0 | - | 4.37 | 87,458 |
| Companies A-Z | 0 | - | 4.30 | 42,764 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,731 |
| Geography by Letter - G | 0 | - | 4.33 | 126,974 |
| Geography by Letter - F | 0 | - | 4.28 | 138,689 |
| Geography by Letter - J | 0 | - | 4.35 | 123,575 |
| Geography by Letter - O | 0 | - | 4.37 | 130,385 |
| Geography by Letter - V | 0 | - | 4.39 | 122,485 |
| Geography by Letter - W | 0 | - | 4.39 | 115,402 |
| Geography by Letter - Y | 0 | - | 4.39 | 112,097 |
| Geography by Letter - Z | 0 | - | 4.11 | 82,111 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,993 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,367 |
| Video Games A-Z | 0 | - | 4.05 | 39,220 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,389 |
| Movies that Start with A | 0 | - | 4.13 | 62,114 |
| Movies that Start with C | 0 | - | 4.30 | 62,104 |
| Movies that Start with B | 0 | - | 4.36 | 85,678 |
| Movies that Start with D | 0 | - | 4.34 | 68,640 |
| Movies that Start with E | 0 | - | 4.13 | 68,579 |
| Movies that Start with J | 0 | - | 4.18 | 76,399 |
| Movies that Start with L | 0 | - | 4.16 | 60,580 |
| Movies that Start with M | 0 | - | 4.28 | 48,379 |
| Movies that Start with N | 0 | - | 4.02 | 41,377 |
| Movies that Start with P | 0 | - | 4.25 | 54,276 |
| Movies that Start with R | 0 | - | 4.17 | 46,796 |
| Movies that Start with W | 0 | - | 4.07 | 44,364 |
| Movies that Start with T | 0 | - | 4.34 | 49,444 |
| Movies that Start with S | 0 | - | 4.35 | 56,620 |
| Movies that Start with F | 0 | - | 4.13 | 69,061 |
| History by Letter - D | 0 | - | 4.40 | 138,523 |
| History by Letter - F | 0 | - | 4.19 | 115,042 |
| History by Letter - O | 0 | - | 4.32 | 100,241 |
| History by Letter - P | 0 | - | 4.36 | 108,419 |
| History by Letter - Q | 0 | - | 4.34 | 80,764 |
| History by Letter - R | 0 | - | 4.26 | 122,766 |
| History by Letter - T | 0 | - | 4.39 | 105,767 |
| History by Letter - U | 0 | - | 4.19 | 101,276 |
| History by Letter - V | 0 | - | 4.27 | 81,182 |
| History by Letter - Y | 0 | - | 4.27 | 87,693 |
| History by Letter - Z | 0 | - | 4.20 | 77,425 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,333 |
| Music by Letter - F | 0 | - | 4.47 | 27,123 |
| Music by Letter - A | 0 | - | 4.61 | 31,514 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.38 | 21,921 |
| Famous Literature Fractured | 0 | - | 4.05 | 9,781 |
| The 100 Greatest Novels | 0 | - | 3.74 | 41,915 |
| Bestselling Authors | 0 | - | 4.10 | 19,022 |
| Characters from Books #2 | 0 | - | 4.42 | 80,122 |
| Nursery Rhymes #2 | 0 | - | 4.22 | 15,494 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,402 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,420 |
| Middle East A-Z | 0 | - | 4.47 | 46,226 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,536 |
| 20th Century A-Z | 0 | - | 4.50 | 53,959 |
| 19th Century A-Z | 0 | - | 4.77 | 47,447 |
| 18th Century A-Z | 0 | - | 4.54 | 43,303 |
| Modern Library's 100 Best Novels | 0 | - | 3.93 | 11,508 |
| Books by Clue #1 | 0 | - | 4.36 | 25,845 |
| Literary Groups of Things | 0 | - | 4.27 | 30,718 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,959 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,498 |
| Hunger Games Trivia | 0 | - | 4.22 | 53,535 |
| The Hunger Games Districts Quiz | 0 | - | 4.21 | 31,952 |
| Top Arms Exporting Countries | 0 | - | 4.97 | 103,906 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 183,647 |
| Star Wars A-Z | 0 | - | 4.46 | 88,781 |
| Monarchies of the World | 0 | - | 4.94 | 170,039 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,750 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 113,009 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 115,143 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 75,552 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.80 | 804,710 |
| Astronomy Quiz | 0 | - | 4.90 | 83,178 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 93,058 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 66,152 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,882 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,724 |
| Musical Acts by Letter - M | 0 | - | 4.15 | 93,788 |
