| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,476 |
| Literature by Letter - A | 0 | - | 4.23 | 31,750 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,066 |
| Literature by Letter - D | 0 | - | 4.30 | 20,452 |
| Literature by Letter - C | 0 | - | 4.34 | 26,378 |
| Literature by Letter - F | 0 | - | 4.25 | 17,077 |
| Literature by Letter - E | 0 | - | 4.03 | 14,965 |
| Literature by Letter - H | 0 | - | 4.23 | 17,995 |
| Literature by Letter - I | 0 | - | 4.25 | 15,141 |
| Literature by Letter - L | 0 | - | 4.32 | 23,135 |
| Literature by Letter - M | 0 | - | 4.16 | 18,535 |
| Literature by Letter - P | 0 | - | 4.16 | 16,667 |
| Literature by Letter - O | 0 | - | 4.30 | 13,466 |
| Literature by Letter - J | 0 | - | 4.23 | 14,742 |
| Literature by Letter - N | 0 | - | 4.24 | 14,237 |
| Literature by Letter - K | 0 | - | 4.13 | 12,224 |
| Literature by Letter - R | 0 | - | 4.06 | 11,818 |
| Literature by Letter - T | 0 | - | 4.37 | 18,486 |
| Literature by Letter - V | 0 | - | 4.06 | 11,670 |
| Literature by Letter - W | 0 | - | 4.15 | 13,425 |
| Geography by Letter - T | 0 | - | 4.84 | 152,330 |
| Authors with Books Turned into Movies | 0 | - | 4.44 | 62,612 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 81,214 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 106,845 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,687 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,862 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,349 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,672 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,320 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,325 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,107 |
| Famous Literary Characters | 0 | - | 4.38 | 36,296 |
| Charlie and the Chocolate Factory | 0 | - | 4.43 | 16,154 |
| Literature Multiple Choice #1 | 0 | - | 4.50 | 40,577 |
| Literature Multiple Choice #2 | 0 | - | 4.44 | 34,334 |
| Books by Plot Description | 0 | - | 4.54 | 26,372 |
| Classic Novels by Plot #1 | 0 | - | 4.40 | 73,111 |
| Who Wrote That Book #2 | 0 | - | 4.47 | 47,754 |
| 100 Books You Can't Do Without | 0 | - | 4.48 | 63,016 |
| Who Wrote That Book #1 | 0 | - | 4.47 | 102,993 |
| Literature by Letter - G | 0 | - | 3.91 | 14,455 |
| Literature by Letter - S | 0 | - | 3.94 | 11,819 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,718 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,673 |
| Book Titles by Synonyms #1 | 0 | - | 4.61 | 75,604 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.45 | 44,975 |
| NATO Military Alphabet | 0 | - | 4.98 | 553,880 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 797,677 |
| Geography by Letter - A | 0 | - | 4.74 | 210,015 |
| Geography by Letter - B | 0 | - | 4.56 | 183,187 |
| Geography by Letter - H | 0 | - | 4.69 | 149,223 |
| Geography by Letter - C | 0 | - | 4.47 | 157,492 |
| Geography by Letter - D | 0 | - | 4.50 | 149,431 |
| Geography by Letter - E | 0 | - | 4.42 | 146,591 |
| Geography by Letter - I | 0 | - | 4.42 | 121,154 |
| Geography by Letter - K | 0 | - | 4.53 | 117,278 |
| Geography by Letter - L | 0 | - | 4.43 | 147,564 |
| Geography by Letter - M | 0 | - | 4.49 | 117,575 |
| Geography by Letter - N | 0 | - | 4.51 | 126,190 |
| Geography by Letter - P | 0 | - | 4.47 | 175,092 |
| Geography by Letter - R | 0 | - | 4.43 | 130,263 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 139,491 |
| Geography by Letter - U | 0 | - | 4.54 | 142,000 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,968 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,017 |
| Geography A-Z #2 | 0 | - | 4.46 | 52,671 |
| Geography A-Z #5 | 0 | - | 4.47 | 37,177 |
| Empires A-Z | 0 | - | 4.51 | 44,794 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,320 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,871 |
| Movies that Start with G | 0 | - | 4.48 | 68,233 |
| Movies that Start with I | 0 | - | 4.41 | 64,871 |
| History by Letter - A | 0 | - | 4.51 | 152,062 |
| History by Letter - B | 0 | - | 4.45 | 171,208 |
| History by Letter - C | 0 | - | 4.69 | 170,240 |
| History by Letter - E | 0 | - | 4.51 | 139,796 |
| History by Letter - G | 0 | - | 4.45 | 121,401 |
| History by Letter - H | 0 | - | 4.45 | 135,827 |
| History by Letter - J | 0 | - | 4.51 | 153,186 |
| History by Letter - N | 0 | - | 4.44 | 103,362 |
| History by Letter - S | 0 | - | 4.47 | 93,644 |
| History by Letter - W | 0 | - | 4.45 | 108,693 |
| History by Letter - M | 0 | - | 4.54 | 119,065 |
| History by Letter - K | 0 | - | 4.50 | 100,799 |
| History by Letter - L | 0 | - | 4.49 | 111,474 |
| History by Letter - I | 0 | - | 4.46 | 103,646 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,195 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,152 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,712 |
| Authors of Children's Books | 0 | - | 4.23 | 19,948 |
| Books by City | 0 | - | 4.04 | 14,192 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.41 | 27,423 |
| Dewey Decimal System | 0 | - | 4.28 | 13,539 |
| Authors by Country | 0 | - | 4.40 | 32,080 |
| Nonfiction Books Quiz | 0 | - | 4.44 | 22,470 |
| 1984 the Book | 0 | - | 4.61 | 20,953 |
| Winnie-the-Pooh Characters | 0 | - | 4.46 | 28,552 |
| Nursery Rhymes Fill in the Blank | 0 | - | 4.14 | 40,380 |
| Countries by Military Spending | 0 | - | 4.93 | 176,348 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 119,645 |
| "Of Something" Book Titles | 0 | - | 4.45 | 47,926 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,284 |
| Animals that Start with L | 0 | - | 4.47 | 101,218 |
| Animals that Start with P | 0 | - | 4.45 | 85,615 |
| Animals that Start with S | 0 | - | 4.49 | 86,777 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 89,592 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 116,539 |
| World Cities A-Z by Clue #1 | 0 | - | 4.54 | 65,610 |
| Islands A-Z | 0 | - | 4.46 | 116,707 |
| World Cities A-Z by Clue #2 | 0 | - | 4.44 | 57,134 |
| Human Body A-Z | 0 | - | 4.51 | 128,300 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 33,958 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,786 |
| Africa A-Z | 0 | - | 4.57 | 46,357 |
| Ethnic Groups A-Z | 0 | - | 4.50 | 42,035 |
| People in History A-Z #1 | 0 | - | 4.63 | 98,565 |
| People in History A-Z #2 | 0 | - | 4.47 | 54,792 |
| People in History A-Z #3 | 0 | - | 4.44 | 45,947 |
| Books by Clue #2 | 0 | - | 4.43 | 26,596 |
| Disney A-Z | 0 | - | 4.37 | 86,106 |
| Companies A-Z | 0 | - | 4.30 | 42,605 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,471 |
| Religion A-Z #2 | 0 | - | 4.40 | 36,798 |
| Geography by Letter - G | 0 | - | 4.35 | 125,417 |
| Geography by Letter - F | 0 | - | 4.27 | 136,994 |
| Geography by Letter - J | 0 | - | 4.34 | 122,119 |
| Geography by Letter - O | 0 | - | 4.37 | 128,938 |
| Geography by Letter - V | 0 | - | 4.39 | 120,746 |
| Geography by Letter - W | 0 | - | 4.39 | 114,142 |
| Geography by Letter - Y | 0 | - | 4.39 | 110,613 |
| Geography by Letter - Z | 0 | - | 4.11 | 80,986 |
| Geography by Letter - Q | 0 | - | 4.38 | 68,826 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.18 | 35,102 |
| Video Games A-Z | 0 | - | 4.08 | 38,671 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,063 |
| Movies that Start with A | 0 | - | 4.13 | 61,625 |
| Movies that Start with C | 0 | - | 4.30 | 61,563 |
| Movies that Start with B | 0 | - | 4.35 | 84,894 |
| Movies that Start with D | 0 | - | 4.34 | 68,213 |
| Movies that Start with E | 0 | - | 4.13 | 68,159 |
| Movies that Start with J | 0 | - | 4.18 | 75,902 |
| Movies that Start with L | 0 | - | 4.16 | 60,216 |
| Movies that Start with M | 0 | - | 4.28 | 48,050 |
| Movies that Start with N | 0 | - | 4.02 | 41,098 |
| Movies that Start with P | 0 | - | 4.25 | 53,989 |
| Movies that Start with R | 0 | - | 4.17 | 46,429 |
| Movies that Start with W | 0 | - | 4.07 | 44,120 |
| Movies that Start with T | 0 | - | 4.33 | 49,098 |
| Movies that Start with S | 0 | - | 4.35 | 56,253 |
| Movies that Start with F | 0 | - | 4.13 | 68,626 |
| History by Letter - D | 0 | - | 4.39 | 136,844 |
| History by Letter - F | 0 | - | 4.18 | 113,656 |
| History by Letter - O | 0 | - | 4.31 | 99,024 |
| History by Letter - P | 0 | - | 4.38 | 107,310 |
| History by Letter - Q | 0 | - | 4.34 | 79,953 |
| History by Letter - R | 0 | - | 4.26 | 121,616 |
| History by Letter - T | 0 | - | 4.39 | 104,842 |
| History by Letter - U | 0 | - | 4.19 | 100,207 |
| History by Letter - V | 0 | - | 4.27 | 80,339 |
| History by Letter - Y | 0 | - | 4.27 | 86,916 |
| History by Letter - Z | 0 | - | 4.18 | 76,719 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,108 |
| Music by Letter - F | 0 | - | 4.48 | 26,804 |
| Music by Letter - A | 0 | - | 4.61 | 31,170 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,617 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,986 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,150 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,640 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.38 | 21,777 |
| Famous Literature Fractured | 0 | - | 4.04 | 9,661 |
| The 100 Greatest Novels | 0 | - | 3.71 | 41,656 |
| Bestselling Authors | 0 | - | 4.10 | 18,808 |
| Characters from Books #2 | 0 | - | 4.42 | 79,503 |
| Nursery Rhymes #2 | 0 | - | 4.22 | 15,422 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,735 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 66,828 |
| Middle East A-Z | 0 | - | 4.47 | 45,770 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,138 |
| 20th Century A-Z | 0 | - | 4.50 | 53,145 |
| 19th Century A-Z | 0 | - | 4.77 | 46,715 |
| 18th Century A-Z | 0 | - | 4.54 | 42,628 |
| Modern Library's 100 Best Novels | 0 | - | 3.93 | 11,394 |
| Books by Clue #1 | 0 | - | 4.36 | 25,700 |
| Literary Groups of Things | 0 | - | 4.26 | 30,533 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,603 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,223 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.37 | 14,227 |
| Hunger Games Trivia | 0 | - | 4.22 | 52,843 |
| The Hunger Games Districts Quiz | 0 | - | 4.21 | 31,664 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 85,047 |
| Star Wars A-Z | 0 | - | 4.46 | 87,128 |
| Monarchies of the World | 0 | - | 4.94 | 166,512 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 111,479 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 110,875 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 113,408 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,644 |
| Astronomy Quiz | 0 | - | 4.89 | 81,638 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,401 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.89 | 65,136 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,684 |
