| Classic Novels by Plot #2 | 0 | - | 4.83 | 35,304 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.41 | 14,721 |
| Literature by Letter - A | 0 | - | 4.23 | 31,032 |
| Literature by Letter - D | 0 | - | 4.29 | 19,929 |
| Literature by Letter - C | 0 | - | 4.32 | 25,788 |
| Literature by Letter - F | 0 | - | 4.25 | 16,637 |
| Literature by Letter - E | 0 | - | 4.03 | 14,535 |
| Literature by Letter - H | 0 | - | 4.23 | 17,588 |
| Literature by Letter - I | 0 | - | 4.23 | 14,756 |
| Literature by Letter - M | 0 | - | 4.16 | 18,151 |
| Literature by Letter - P | 0 | - | 4.16 | 16,330 |
| Literature by Letter - O | 0 | - | 4.30 | 13,143 |
| Literature by Letter - J | 0 | - | 4.23 | 14,400 |
| Literature by Letter - N | 0 | - | 4.24 | 13,913 |
| Literature by Letter - K | 0 | - | 4.13 | 11,898 |
| Literature by Letter - R | 0 | - | 4.06 | 11,543 |
| Literature by Letter - T | 0 | - | 4.37 | 18,114 |
| Literature by Letter - U | 0 | - | 4.20 | 12,765 |
| Literature by Letter - V | 0 | - | 4.06 | 11,385 |
| Literature by Letter - W | 0 | - | 4.15 | 13,155 |
| Geography by Letter - T | 0 | - | 4.84 | 146,900 |
| Authors with Books Turned into Movies | 0 | - | 4.45 | 61,197 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.89 | 78,013 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 151,020 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 190,162 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 167,636 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 186,881 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 295,666 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 175,859 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.81 | 70,331 |
| Famous Literary Characters | 0 | - | 4.38 | 35,124 |
| Charlie and the Chocolate Factory | 0 | - | 4.43 | 15,590 |
| Literature Multiple Choice #1 | 0 | - | 4.50 | 39,434 |
| Literature Multiple Choice #2 | 0 | - | 4.43 | 33,553 |
| Classic Novels by Plot #1 | 0 | - | 4.40 | 71,411 |
| Who Wrote That Book #2 | 0 | - | 4.45 | 45,193 |
| 100 Books You Can't Do Without | 0 | - | 4.50 | 54,341 |
| Who Wrote That Book #1 | 0 | - | 4.41 | 88,761 |
| Literature by Letter - G | 0 | - | 3.91 | 14,075 |
| Literature by Letter - S | 0 | - | 3.94 | 11,542 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 228,684 |
| Name an Official Language A-Z | 0 | - | 4.92 | 170,538 |
| Book Titles by Synonyms #1 | 0 | - | 4.56 | 74,215 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.44 | 43,985 |
| NATO Military Alphabet | 0 | - | 4.98 | 535,187 |
| Religion A-Z #2 | 0 | - | 4.41 | 36,098 |
| Geography by Letter - A | 0 | - | 4.70 | 205,348 |
| Geography by Letter - B | 0 | - | 4.56 | 178,670 |
| Geography by Letter - H | 0 | - | 4.70 | 145,470 |
| Geography by Letter - C | 0 | - | 4.51 | 153,785 |
| Geography by Letter - D | 0 | - | 4.49 | 145,925 |
| Geography by Letter - E | 0 | - | 4.41 | 142,899 |
| Geography by Letter - I | 0 | - | 4.41 | 118,447 |
| Geography by Letter - K | 0 | - | 4.53 | 114,582 |
| Geography by Letter - L | 0 | - | 4.45 | 144,314 |
| Geography by Letter - M | 0 | - | 4.49 | 114,557 |
| Geography by Letter - N | 0 | - | 4.51 | 123,315 |
| Geography by Letter - P | 0 | - | 4.48 | 171,653 |
| Geography by Letter - R | 0 | - | 4.43 | 126,091 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 135,431 |
| Geography by Letter - U | 0 | - | 4.52 | 137,776 |
| Asian Geography By Letter - K | 0 | - | 4.74 | 57,289 |
| A to Z: Musical Terms | 0 | - | 4.43 | 39,811 |
| Geography A-Z #2 | 0 | - | 4.46 | 51,709 |
| Geography A-Z #5 | 0 | - | 4.46 | 36,499 |
| Geography A-Z #1 | 0 | - | 4.56 | 68,313 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 112,535 |
| Movies that Start with G | 0 | - | 4.49 | 67,246 |
| Movies that Start with I | 0 | - | 4.41 | 63,924 |
| History by Letter - A | 0 | - | 4.51 | 148,162 |
| History by Letter - B | 0 | - | 4.46 | 167,155 |
| History by Letter - C | 0 | - | 4.68 | 165,645 |
| History by Letter - E | 0 | - | 4.50 | 136,077 |
| History by Letter - G | 0 | - | 4.46 | 118,214 |
| History by Letter - H | 0 | - | 4.44 | 132,406 |
| History by Letter - J | 0 | - | 4.50 | 149,322 |
| History by Letter - N | 0 | - | 4.43 | 100,675 |
| History by Letter - S | 0 | - | 4.46 | 91,126 |
| History by Letter - T | 0 | - | 4.43 | 102,576 |
| History by Letter - W | 0 | - | 4.47 | 105,853 |
| History by Letter - M | 0 | - | 4.53 | 116,202 |
| History by Letter - K | 0 | - | 4.50 | 98,355 |
| History by Letter - L | 0 | - | 4.48 | 108,743 |
| History by Letter - I | 0 | - | 4.45 | 101,054 |
| Brand Logos That Start with A | 0 | - | 4.51 | 65,638 |
| Brand Logos That Start With L | 0 | - | 4.41 | 56,624 |
| Brand Logos That Start With M | 0 | - | 4.43 | 58,083 |
| Authors of Children's Books | 0 | - | 4.23 | 19,737 |
| Books by City | 0 | - | 4.02 | 13,899 |
| Dewey Decimal System | 0 | - | 4.28 | 13,412 |
| Authors by Country Quiz | 0 | - | 4.39 | 31,654 |
| Nonfiction Books Quiz | 0 | - | 4.46 | 21,781 |
| 1984 the Book | 0 | - | 4.61 | 20,636 |
| Winnie-the-Pooh Characters | 0 | - | 4.45 | 28,298 |
| Nursery Rhymes Quiz | 0 | - | 4.22 | 40,070 |
| Countries by Military Spending | 0 | - | 4.93 | 171,257 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 115,313 |
| "Of Something" Book Titles | 0 | - | 4.44 | 47,167 |
| 100 Most Common English Words | 0 | - | 4.89 | 1,263,763 |
| Animals that Start with L | 0 | - | 4.46 | 99,165 |
| Animals that Start with P | 0 | - | 4.44 | 83,864 |
| Animals that Start with S | 0 | - | 4.49 | 84,821 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 86,578 |
| Geography by Letter on the World Map - A | 0 | - | 4.80 | 102,719 |
| Geography by Letter on the World Map - C | 0 | - | 4.78 | 112,972 |
| World Cities A-Z #1 | 0 | - | 4.52 | 61,146 |
| Islands A-Z | 0 | - | 4.46 | 113,514 |
| World Cities A-Z #2 | 0 | - | 4.44 | 53,511 |
| Human Body A-Z | 0 | - | 4.50 | 125,508 |
| Africa A-Z | 0 | - | 4.57 | 45,615 |
| People in History A-Z #1 | 0 | - | 4.63 | 96,369 |
| People in History A-Z #2 | 0 | - | 4.47 | 53,441 |
| People in History A-Z #3 | 0 | - | 4.48 | 44,832 |
| Books by Clue #2 | 0 | - | 4.43 | 26,171 |
| Disney A-Z | 0 | - | 4.38 | 83,645 |
| Companies A-Z | 0 | - | 4.30 | 42,258 |
| Religion A-Z #1 | 0 | - | 4.31 | 60,904 |
| Geography by Letter - G | 0 | - | 4.35 | 122,440 |
| Geography by Letter - F | 0 | - | 4.27 | 133,519 |
| Geography by Letter - J | 0 | - | 4.33 | 119,055 |
| Geography by Letter - O | 0 | - | 4.37 | 125,977 |
| Geography by Letter - V | 0 | - | 4.38 | 116,988 |
| Geography by Letter - W | 0 | - | 4.39 | 111,591 |
| Geography by Letter - Y | 0 | - | 4.38 | 107,882 |
| Geography by Letter - Z | 0 | - | 4.09 | 78,811 |
| Geography by Letter - Q | 0 | - | 4.38 | 66,675 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.17 | 34,617 |
| Video Games A-Z | 0 | - | 4.06 | 37,605 |
| Geography A-Z #3 | 0 | - | 4.20 | 38,364 |
| Movies that Start with A | 0 | - | 4.11 | 60,730 |
| Movies that Start with C | 0 | - | 4.29 | 60,531 |
| Movies that Start with B | 0 | - | 4.34 | 83,711 |
| Movies that Start with D | 0 | - | 4.34 | 67,473 |
| Movies that Start with E | 0 | - | 4.13 | 67,376 |
| Movies that Start with J | 0 | - | 4.22 | 74,956 |
| Movies that Start with L | 0 | - | 4.15 | 59,517 |
| Movies that Start with M | 0 | - | 4.28 | 47,480 |
| Movies that Start with N | 0 | - | 4.01 | 40,592 |
| Movies that Start with P | 0 | - | 4.25 | 53,421 |
| Movies that Start with R | 0 | - | 4.16 | 45,718 |
| Movies that Start with W | 0 | - | 4.06 | 43,646 |
| Movies that Start with T | 0 | - | 4.34 | 48,435 |
| Movies that Start with S | 0 | - | 4.36 | 55,570 |
| Movies that Start with F | 0 | - | 4.13 | 67,860 |
| History by Letter - D | 0 | - | 4.35 | 133,737 |
| History by Letter - F | 0 | - | 4.20 | 111,027 |
| History by Letter - O | 0 | - | 4.31 | 96,760 |
| History by Letter - P | 0 | - | 4.37 | 104,659 |
| History by Letter - Q | 0 | - | 4.35 | 78,253 |
| History by Letter - R | 0 | - | 4.25 | 119,073 |
| History by Letter - U | 0 | - | 4.18 | 97,983 |
| History by Letter - V | 0 | - | 4.29 | 78,693 |
| History by Letter - Y | 0 | - | 4.25 | 85,045 |
| History by Letter - Z | 0 | - | 4.20 | 75,249 |
| The 3rd and 4th Century | 0 | - | 4.59 | 26,387 |
| Music by Letter - F | 0 | - | 4.48 | 26,219 |
| Music by Letter - A | 0 | - | 4.61 | 30,516 |
| Brand Logos That Start With B | 0 | - | 4.40 | 56,279 |
| Brand Logos That Start With D | 0 | - | 4.33 | 57,646 |
| Brand Logos That Start With C | 0 | - | 4.15 | 46,713 |
| Brand Logos That Start With S | 0 | - | 4.39 | 53,406 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.40 | 27,042 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.39 | 21,507 |
| Famous Literature Fractured | 0 | - | 4.04 | 9,421 |
| The 100 Greatest Novels | 0 | - | 3.76 | 41,033 |
| Bestselling Authors Quiz | 0 | - | 4.10 | 18,221 |
| Nursery Rhymes #2 | 0 | - | 4.22 | 15,273 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 150,750 |
| Top Five Exporting Partners by Country | 0 | - | 4.85 | 65,575 |
| Middle East A-Z | 0 | - | 4.46 | 44,932 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 43,392 |
| 20th Century A-Z | 0 | - | 4.51 | 51,126 |
| 19th Century A-Z | 0 | - | 4.74 | 44,799 |
| 18th Century A-Z | 0 | - | 4.57 | 40,814 |
| Modern Library's 100 Best Novels | 0 | - | 3.91 | 11,132 |
| Books by Clue #1 | 0 | - | 4.36 | 25,387 |
| Literary Groups of Things | 0 | - | 4.26 | 30,144 |
| 5-Letter Literature Chain | 0 | - | 4.32 | 53,793 |
| 4-Letter Literature Chain | 0 | - | 4.35 | 41,512 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.35 | 14,000 |
| Hunger Games Trivia | 0 | - | 4.31 | 51,657 |
| Top Arms Exporting Countries | 0 | - | 4.95 | 82,305 |
| Star Wars A-Z | 0 | - | 4.45 | 85,150 |
| Monarchies of the World | 0 | - | 4.93 | 159,735 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 107,238 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 106,221 |
| Countries where the Sea Freezes | 0 | - | 4.92 | 98,840 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 72,252 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.77 | 758,526 |
| Astronomy Quiz | 0 | - | 4.89 | 78,347 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 90,818 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 63,019 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 98,641 |
| Musical Acts by Letter - J | 0 | - | 4.19 | 76,165 |
| Musical Acts by Letter - M | 0 | - | 4.12 | 91,210 |
| Musical Acts by Letter - N | 0 | - | 4.17 | 67,178 |
| Musical Acts by Letter - P | 0 | - | 4.23 | 64,226 |
| Musical Acts by Letter - R | 0 | - | 4.32 | 81,758 |
| Musical Acts by Letter - T | 0 | - | 4.11 | 66,100 |
| Musical Acts by Letter - A | 0 | - | 4.27 | 80,649 |
