| Classic Novels by Plot #2 | 0 | - | 4.87 | 38,433 |
| Literature by Letter - A | 0 | - | 4.24 | 32,285 |
| Literature by Letter - Q, X, Y, and Z | 0 | - | 4.42 | 15,368 |
| Literature by Letter - D | 0 | - | 4.29 | 20,901 |
| Literature by Letter - C | 0 | - | 4.34 | 26,855 |
| Literature by Letter - F | 0 | - | 4.26 | 17,491 |
| Literature by Letter - E | 0 | - | 4.05 | 15,378 |
| Literature by Letter - H | 0 | - | 4.29 | 20,382 |
| Literature by Letter - I | 0 | - | 4.25 | 17,634 |
| Literature by Letter - L | 0 | - | 4.32 | 23,456 |
| Literature by Letter - M | 0 | - | 4.18 | 18,867 |
| Literature by Letter - P | 0 | - | 4.18 | 17,003 |
| Literature by Letter - J | 0 | - | 4.23 | 15,105 |
| Literature by Letter - N | 0 | - | 4.24 | 14,546 |
| Literature by Letter - K | 0 | - | 4.13 | 12,547 |
| Literature by Letter - R | 0 | - | 4.06 | 12,125 |
| Literature by Letter - T | 0 | - | 4.33 | 18,759 |
| Literature by Letter - U | 0 | - | 4.20 | 13,311 |
| Literature by Letter - V | 0 | - | 4.06 | 11,949 |
| Literature by Letter - W | 0 | - | 4.15 | 13,697 |
| Geography by Letter - T | 0 | - | 4.84 | 154,726 |
| Authors with Books Turned into Movies | 0 | - | 4.45 | 63,109 |
| Geography by Letter on the World Map - A-Z | 0 | - | 4.87 | 82,724 |
| Geography by Letter on the World Map - A | 0 | - | 4.81 | 108,550 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,898 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,298 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,673 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,292 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,534 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,944 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,249 |
| Famous Literary Characters | 0 | - | 4.38 | 36,741 |
| Charlie and the Chocolate Factory | 0 | - | 4.45 | 16,375 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 41,005 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,668 |
| Classic Novels by Plot #1 | 0 | - | 4.40 | 73,786 |
| Who Wrote That Book #2 | 0 | - | 4.47 | 48,168 |
| 100 Books You Can't Do Without | 0 | - | 4.49 | 64,406 |
| Who Wrote That Book #1 | 0 | - | 4.47 | 103,717 |
| Literature by Letter - G | 0 | - | 3.91 | 14,833 |
| Literature by Letter - S | 0 | - | 3.94 | 12,127 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,069 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,545 |
| Book Titles by Synonyms #1 | 0 | - | 4.54 | 76,193 |
| Ultimate Percy Jackson Characters Quiz | 0 | - | 4.49 | 45,373 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,842 |
| NATO Military Alphabet | 0 | - | 4.98 | 562,691 |
| Religion A-Z #2 | 0 | - | 4.41 | 37,079 |
| Geography by Letter - A | 0 | - | 4.74 | 212,409 |
| Geography by Letter - B | 0 | - | 4.56 | 185,408 |
| Geography by Letter - H | 0 | - | 4.69 | 150,960 |
| Geography by Letter - C | 0 | - | 4.48 | 159,388 |
| Geography by Letter - D | 0 | - | 4.50 | 151,382 |
| Geography by Letter - E | 0 | - | 4.42 | 148,217 |
| Geography by Letter - I | 0 | - | 4.42 | 122,504 |
| Geography by Letter - K | 0 | - | 4.54 | 118,858 |
| Geography by Letter - L | 0 | - | 4.44 | 149,314 |
| Geography by Letter - M | 0 | - | 4.49 | 119,241 |
| Geography by Letter - N | 0 | - | 4.51 | 127,706 |
| Geography by Letter - P | 0 | - | 4.47 | 176,621 |
| Geography by Letter - R | 0 | - | 4.43 | 132,321 |
| Geography by Letter - S #1 | 0 | - | 4.74 | 141,149 |
| Geography by Letter - U | 0 | - | 4.53 | 143,649 |
| Asian Geography By Letter - K | 0 | - | 4.75 | 58,271 |
| A to Z: Musical Terms | 0 | - | 4.43 | 41,473 |
| Geography A-Z #2 | 0 | - | 4.46 | 53,056 |
| Geography A-Z #5 | 0 | - | 4.44 | 37,459 |
| Geography A-Z #1 | 0 | - | 4.56 | 69,721 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,503 |
| Movies that Start with G | 0 | - | 4.49 | 68,728 |
| Movies that Start with I | 0 | - | 4.41 | 65,332 |
| History by Letter - A | 0 | - | 4.51 | 153,593 |
| History by Letter - B | 0 | - | 4.45 | 172,927 |
| History by Letter - C | 0 | - | 4.70 | 172,253 |
| History by Letter - E | 0 | - | 4.51 | 141,204 |
| History by Letter - G | 0 | - | 4.46 | 122,638 |
| History by Letter - H | 0 | - | 4.45 | 137,284 |
| History by Letter - J | 0 | - | 4.51 | 154,651 |
| History by Letter - N | 0 | - | 4.45 | 104,468 |
| History by Letter - S | 0 | - | 4.47 | 94,768 |
| History by Letter - W | 0 | - | 4.45 | 109,990 |
| History by Letter - M | 0 | - | 4.54 | 120,284 |
| History by Letter - K | 0 | - | 4.50 | 101,767 |
| History by Letter - L | 0 | - | 4.50 | 112,542 |
| History by Letter - I | 0 | - | 4.46 | 104,800 |
| Authors of Children's Books | 0 | - | 4.24 | 20,028 |
| Books by City | 0 | - | 4.04 | 14,312 |
| Word Puzzles - Book Titles #1 | 0 | - | 4.41 | 27,606 |
| Dewey Decimal System | 0 | - | 4.28 | 13,602 |
| Authors by Country | 0 | - | 4.40 | 32,250 |
| Nonfiction Books Quiz | 0 | - | 4.44 | 22,680 |
| 1984 the Book | 0 | - | 4.61 | 21,082 |
| Winnie-the-Pooh Characters | 0 | - | 4.46 | 28,652 |
| Nursery Rhymes Fill in the Blank | 0 | - | 4.14 | 40,517 |
| Countries by Military Spending | 0 | - | 4.93 | 178,671 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,377 |
| "Of Something" Book Titles | 0 | - | 4.45 | 48,203 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,322,106 |
| Animals that Start with L | 0 | - | 4.47 | 102,319 |
| Animals that Start with P | 0 | - | 4.45 | 86,370 |
| Animals that Start with S | 0 | - | 4.49 | 87,570 |
| Geography by Letter on the World Map - B | 0 | - | 4.52 | 90,856 |
| Geography by Letter on the World Map - C | 0 | - | 4.77 | 118,260 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,549 |
| Islands A-Z | 0 | - | 4.46 | 126,494 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,396 |
| Human Body A-Z | 0 | - | 4.51 | 129,485 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,781 |
| Africa A-Z | 0 | - | 4.57 | 46,726 |
| Ethnic Groups A-Z | 0 | - | 4.51 | 42,427 |
| People in History A-Z #1 | 0 | - | 4.63 | 99,536 |
| People in History A-Z #2 | 0 | - | 4.47 | 55,361 |
| People in History A-Z #3 | 0 | - | 4.44 | 46,358 |
| Books by Clue #2 | 0 | - | 4.43 | 26,745 |
| Sci-Fi and Fantasy Authors | 0 | - | 4.43 | 17,428 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,396 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,943 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,954 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,632 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,257 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,036 |
| Disney A-Z | 0 | - | 4.37 | 87,370 |
| Companies A-Z | 0 | - | 4.30 | 42,746 |
| Religion A-Z #1 | 0 | - | 4.32 | 61,697 |
| Geography by Letter - G | 0 | - | 4.33 | 126,822 |
| Geography by Letter - F | 0 | - | 4.28 | 138,544 |
| Geography by Letter - J | 0 | - | 4.35 | 123,423 |
| Geography by Letter - O | 0 | - | 4.37 | 130,242 |
| Geography by Letter - V | 0 | - | 4.39 | 122,300 |
| Geography by Letter - W | 0 | - | 4.39 | 115,260 |
| Geography by Letter - Y | 0 | - | 4.39 | 111,954 |
| Geography by Letter - Z | 0 | - | 4.11 | 81,993 |
| Geography by Letter - Q | 0 | - | 4.38 | 69,888 |
| Same Start and End Letter - Geography #1 | 0 | - | 4.15 | 35,340 |
| Video Games A-Z | 0 | - | 4.05 | 39,154 |
| Geography A-Z #3 | 0 | - | 4.22 | 39,348 |
| Movies that Start with A | 0 | - | 4.13 | 62,058 |
| Movies that Start with C | 0 | - | 4.30 | 62,050 |
| Movies that Start with B | 0 | - | 4.36 | 85,614 |
| Movies that Start with D | 0 | - | 4.34 | 68,597 |
| Movies that Start with E | 0 | - | 4.13 | 68,535 |
| Movies that Start with J | 0 | - | 4.18 | 76,347 |
| Movies that Start with L | 0 | - | 4.16 | 60,548 |
| Movies that Start with M | 0 | - | 4.28 | 48,350 |
| Movies that Start with N | 0 | - | 4.02 | 41,346 |
| Movies that Start with P | 0 | - | 4.25 | 54,246 |
| Movies that Start with R | 0 | - | 4.17 | 46,759 |
| Movies that Start with W | 0 | - | 4.07 | 44,340 |
| Movies that Start with T | 0 | - | 4.34 | 49,412 |
| Movies that Start with S | 0 | - | 4.35 | 56,589 |
| Movies that Start with F | 0 | - | 4.13 | 69,018 |
| History by Letter - D | 0 | - | 4.40 | 138,315 |
| History by Letter - F | 0 | - | 4.18 | 114,871 |
| History by Letter - O | 0 | - | 4.32 | 99,858 |
| History by Letter - P | 0 | - | 4.36 | 108,229 |
| History by Letter - Q | 0 | - | 4.34 | 80,612 |
| History by Letter - R | 0 | - | 4.26 | 122,585 |
| History by Letter - T | 0 | - | 4.39 | 105,619 |
| History by Letter - U | 0 | - | 4.19 | 101,136 |
| History by Letter - V | 0 | - | 4.27 | 81,064 |
| History by Letter - Y | 0 | - | 4.27 | 87,577 |
| History by Letter - Z | 0 | - | 4.20 | 77,314 |
| The 3rd and 4th Century | 0 | - | 4.60 | 27,306 |
| Music by Letter - F | 0 | - | 4.47 | 27,086 |
| Music by Letter - A | 0 | - | 4.61 | 31,478 |
| Word Puzzles - Book Titles #2 | 0 | - | 4.38 | 21,909 |
| Famous Literature Fractured | 0 | - | 4.05 | 9,772 |
| The 100 Greatest Novels | 0 | - | 3.74 | 41,879 |
| Bestselling Authors | 0 | - | 4.10 | 19,007 |
| Characters from Books #2 | 0 | - | 4.42 | 80,057 |
| Nursery Rhymes #2 | 0 | - | 4.22 | 15,486 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,024 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,330 |
| Middle East A-Z | 0 | - | 4.47 | 46,195 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,471 |
| 20th Century A-Z | 0 | - | 4.50 | 53,890 |
| 19th Century A-Z | 0 | - | 4.77 | 47,408 |
| 18th Century A-Z | 0 | - | 4.54 | 43,262 |
| Modern Library's 100 Best Novels | 0 | - | 3.93 | 11,497 |
| Books by Clue #1 | 0 | - | 4.36 | 25,823 |
| Literary Groups of Things | 0 | - | 4.27 | 30,689 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,915 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,467 |
| Hunger Games Trivia | 0 | - | 4.22 | 53,464 |
| The Hunger Games Districts Quiz | 0 | - | 4.21 | 31,917 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 92,543 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,698 |
| Star Wars A-Z | 0 | - | 4.46 | 88,594 |
| Monarchies of the World | 0 | - | 4.94 | 169,632 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,536 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 112,792 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 114,947 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 75,452 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.80 | 804,041 |
| Astronomy Quiz | 0 | - | 4.90 | 82,999 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,969 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 66,028 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,740 |
| Musical Acts by Letter - J | 0 | - | 4.17 | 77,627 |
| Musical Acts by Letter - M | 0 | - | 4.15 | 93,656 |
