| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,464 |
| Literature by Letter - A | 0 | - | 4.23 | 31,749 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,062 |
| Literature by Letter - D | 0 | - | 4.30 | 20,450 |
| Literature by Letter - C | 0 | - | 4.34 | 26,377 |
| Literature by Letter - F | 0 | - | 4.25 | 17,076 |
| Literature by Letter - E | 0 | - | 4.03 | 14,964 |
| Literature by Letter - H | 0 | - | 4.23 | 17,994 |
| Literature by Letter - I | 0 | - | 4.25 | 15,140 |
| Literature by Letter - L | 0 | - | 4.32 | 23,133 |
| Literature by Letter - M | 0 | - | 4.16 | 18,533 |
| Literature by Letter - O | 0 | - | 4.30 | 13,465 |
| Literature by Letter - J | 0 | - | 4.23 | 14,740 |
| Literature by Letter - N | 0 | - | 4.24 | 14,234 |
| Literature by Letter - K | 0 | - | 4.13 | 12,221 |
| Literature by Letter - R | 0 | - | 4.06 | 11,818 |
| Literature by Letter - T | 0 | - | 4.37 | 18,484 |
| Literature by Letter - U | 0 | - | 4.20 | 13,036 |
| Literature by Letter - V | 0 | - | 4.06 | 11,669 |
| Literature by Letter - W | 0 | - | 4.15 | 13,424 |
| Geography by Letter - T | 0 | - | 4.84 | 152,275 |
| Authors with Books Turned into Movies | 0 | - | 4.44 | 62,607 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,203 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,834 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,679 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,845 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,343 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,660 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,306 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,311 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,098 |
| Famous Literary Characters | 0 | - | 4.38 | 36,291 |
| Charlie and the Chocolate Factory | 0 | - | 4.43 | 16,152 |
| Literature Multiple Choice #1 | 0 | - | 4.50 | 40,573 |
| Literature Multiple Choice #2 | 0 | - | 4.44 | 34,331 |
| Books by Plot Description | 0 | - | 4.54 | 26,365 |
| Classic Novels by Plot #1 | 0 | - | 4.40 | 73,104 |
| Who Wrote That Book #2 | 0 | - | 4.47 | 47,749 |
| 100 Books You Can't Do Without | 0 | - | 4.48 | 62,868 |
| Who Wrote That Book #1 | 0 | - | 4.47 | 102,985 |
| Literature by Letter - G | 0 | - | 3.91 | 14,453 |
| Literature by Letter - S | 0 | - | 3.94 | 11,817 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,679 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,650 |
| Book Titles by Synonyms #1 | 0 | - | 4.61 | 75,601 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.45 | 44,969 |
| NATO Military Alphabet | 0 | - | 4.98 | 553,806 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,642 |
| Geography by Letter - A | 0 | - | 4.74 | 209,980 |
| Geography by Letter - B | 0 | - | 4.56 | 183,154 |
| Geography by Letter - H | 0 | - | 4.69 | 149,199 |
| Geography by Letter - C | 0 | - | 4.47 | 157,469 |
| Geography by Letter - D | 0 | - | 4.50 | 149,405 |
| Geography by Letter - E | 0 | - | 4.42 | 146,572 |
| Geography by Letter - I | 0 | - | 4.42 | 121,124 |
| Geography by Letter - K | 0 | - | 4.53 | 117,254 |
| Geography by Letter - L | 0 | - | 4.43 | 147,542 |
| Geography by Letter - M | 0 | - | 4.49 | 117,550 |
| Geography by Letter - N | 0 | - | 4.51 | 126,169 |
| Geography by Letter - P | 0 | - | 4.47 | 175,066 |
| Geography by Letter - R | 0 | - | 4.43 | 130,235 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,399 |
| Geography by Letter - U | 0 | - | 4.54 | 141,971 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,959 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,003 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,668 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,176 |
| Empires A-Z | 0 | - | 4.51 | 44,788 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,315 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,867 |
| Movies that Start with G | 0 | - | 4.48 | 68,229 |
| Movies that Start with I | 0 | - | 4.41 | 64,869 |
| History by Letter - A | 0 | - | 4.51 | 152,044 |
| History by Letter - B | 0 | - | 4.45 | 171,190 |
| History by Letter - C | 0 | - | 4.69 | 170,219 |
| History by Letter - E | 0 | - | 4.51 | 139,782 |
| History by Letter - G | 0 | - | 4.45 | 121,394 |
| History by Letter - H | 0 | - | 4.45 | 135,818 |
| History by Letter - J | 0 | - | 4.51 | 153,171 |
| History by Letter - N | 0 | - | 4.44 | 103,351 |
| History by Letter - S | 0 | - | 4.47 | 93,637 |
| History by Letter - W | 0 | - | 4.45 | 108,682 |
| History by Letter - M | 0 | - | 4.54 | 119,049 |
| History by Letter - K | 0 | - | 4.50 | 100,786 |
| History by Letter - L | 0 | - | 4.49 | 111,462 |
| History by Letter - I | 0 | - | 4.46 | 103,635 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,183 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,139 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,692 |
| Authors of Children's Books | 0 | - | 4.23 | 19,948 |
| Books by City | 0 | - | 4.04 | 14,191 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.41 | 27,421 |
| Dewey Decimal System | 0 | - | 4.28 | 13,539 |
| Authors by Country | 0 | - | 4.40 | 32,078 |
| Nonfiction Books Quiz | 0 | - | 4.44 | 22,464 |
| 1984 the Book | 0 | - | 4.61 | 20,952 |
| Winnie-the-Pooh Characters | 0 | - | 4.46 | 28,549 |
| Nursery Rhymes Fill in the Blank | 0 | - | 4.14 | 40,378 |
| Countries by Military Spending | 0 | - | 4.93 | 176,334 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,629 |
| "Of Something" Book Titles | 0 | - | 4.45 | 47,925 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,115 |
| Animals that Start with L | 0 | - | 4.47 | 101,215 |
| Animals that Start with P | 0 | - | 4.45 | 85,609 |
| Animals that Start with S | 0 | - | 4.49 | 86,773 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,577 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,526 |
| World Cities A-Z by Clue #1 | 0 | - | 4.54 | 65,496 |
| Islands A-Z | 0 | - | 4.46 | 116,693 |
| World Cities A-Z by Clue #2 | 0 | - | 4.44 | 57,026 |
| Human Body A-Z | 0 | - | 4.51 | 128,263 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 33,868 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,778 |
| Africa A-Z | 0 | - | 4.57 | 46,354 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,033 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,555 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,785 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,939 |
| Books by Clue #2 | 0 | - | 4.43 | 26,595 |
| Disney A-Z | 0 | - | 4.37 | 86,093 |
| Companies A-Z | 0 | - | 4.30 | 42,603 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,469 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,797 |
| Geography by Letter - G | 0 | - | 4.35 | 125,399 |
| Geography by Letter - F | 0 | - | 4.27 | 136,975 |
| Geography by Letter - J | 0 | - | 4.34 | 122,097 |
| Geography by Letter - O | 0 | - | 4.37 | 128,919 |
| Geography by Letter - V | 0 | - | 4.39 | 120,640 |
| Geography by Letter - W | 0 | - | 4.39 | 114,120 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,587 |
| Geography by Letter - Z | 0 | - | 4.11 | 80,962 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,805 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,102 |
| Video Games A-Z | 0 | - | 4.08 | 38,668 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,062 |
| Movies that Start with A | 0 | - | 4.13 | 61,623 |
| Movies that Start with C | 0 | - | 4.30 | 61,560 |
| Movies that Start with B | 0 | - | 4.35 | 84,889 |
| Movies that Start with D | 0 | - | 4.34 | 68,210 |
| Movies that Start with E | 0 | - | 4.13 | 68,157 |
| Movies that Start with J | 0 | - | 4.18 | 75,900 |
| Movies that Start with L | 0 | - | 4.16 | 60,211 |
| Movies that Start with M | 0 | - | 4.28 | 48,044 |
| Movies that Start with N | 0 | - | 4.02 | 41,095 |
| Movies that Start with P | 0 | - | 4.25 | 53,983 |
| Movies that Start with R | 0 | - | 4.17 | 46,425 |
| Movies that Start with W | 0 | - | 4.07 | 44,118 |
| Movies that Start with T | 0 | - | 4.33 | 49,094 |
| Movies that Start with S | 0 | - | 4.35 | 56,251 |
| Movies that Start with F | 0 | - | 4.13 | 68,625 |
| History by Letter - D | 0 | - | 4.39 | 136,837 |
| History by Letter - F | 0 | - | 4.18 | 113,650 |
| History by Letter - O | 0 | - | 4.31 | 99,009 |
| History by Letter - P | 0 | - | 4.38 | 107,299 |
| History by Letter - Q | 0 | - | 4.34 | 79,945 |
| History by Letter - R | 0 | - | 4.26 | 121,604 |
| History by Letter - T | 0 | - | 4.39 | 104,836 |
| History by Letter - U | 0 | - | 4.19 | 100,197 |
| History by Letter - V | 0 | - | 4.27 | 80,331 |
| History by Letter - Y | 0 | - | 4.27 | 86,908 |
| History by Letter - Z | 0 | - | 4.18 | 76,713 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,105 |
| Music by Letter - F | 0 | - | 4.48 | 26,792 |
| Music by Letter - A | 0 | - | 4.61 | 31,164 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,602 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,977 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,135 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,622 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.38 | 21,776 |
| Famous Literature Fractured | 0 | - | 4.04 | 9,661 |
| The 100 Greatest Novels | 0 | - | 3.71 | 41,653 |
| Bestselling Authors | 0 | - | 4.10 | 18,806 |
| Characters from Books #2 | 0 | - | 4.42 | 79,498 |
| Nursery Rhymes #2 | 0 | - | 4.22 | 15,420 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,717 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,824 |
| Middle East A-Z | 0 | - | 4.47 | 45,761 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,134 |
| 20th Century A-Z | 0 | - | 4.50 | 53,141 |
| 19th Century A-Z | 0 | - | 4.77 | 46,710 |
| 18th Century A-Z | 0 | - | 4.54 | 42,623 |
| Modern Library's 100 Best Novels | 0 | - | 3.93 | 11,392 |
| Books by Clue #1 | 0 | - | 4.36 | 25,698 |
| Literary Groups of Things | 0 | - | 4.26 | 30,527 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,597 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,220 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.37 | 14,226 |
| Hunger Games Trivia | 0 | - | 4.22 | 52,837 |
| The Hunger Games Districts Quiz | 0 | - | 4.21 | 31,656 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,039 |
| Star Wars A-Z | 0 | - | 4.46 | 87,116 |
| Monarchies of the World | 0 | - | 4.94 | 166,489 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 111,466 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 110,860 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,393 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,637 |
| Astronomy Quiz | 0 | - | 4.89 | 81,625 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,389 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.89 | 65,131 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,674 |
