Fill In The Gap Puzzle #1

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Take a look at the following sequence of letters. Can you figure out which letter replaces the question mark?

 

E   J  ?   T

 

How about which number replaces the question mark in this sequence of numbers?

 

5,  7,   ?  17,   25

 

And one more with letters again?

 

R   N   ?   F

 

Please leave your answers in the comments. I’d love to see them!

 

Click here for the solution.

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Erin Matlock About the founder, Erin Matlock
Erin Matlock is the CEO of Brain Pages, Inc, a media company specializing in the promotion of brain focused resources and professionals. Along with heading up BRAIN PAGES, the company's brain friendly directory and online community, she serves as Founder and Editor in Chief of BrainTraining101.com and TheBrainChannel.com.

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32 Comments On This Post

  1. O, 11, J

    Reply
  2. It’s gotta be O (5-Letter Sequence), 15 (all the 5s/7s), J (4-letter sequence)

    I like these – any more?

    Reply
  3. #1 (O)
    #2 (9)
    #3 (J)

    Reply
  4. o
    11
    j

    Reply
  5. o,5′j

    Reply
  6. 1.o
    2. 11
    3. J

    Reply
  7. O 15 J ???

    Reply
  8. 1. O
    2. 15
    3. J

    Reply
  9. o 11 j

    Reply
  10. 1- O; 2- 15; 3- J

    Reply
  11. o, 11, j

    Reply
  12. O; 15; J

    Reply
  13. O, 12 , J

    Reply
  14. Great work everyone! Glad to see so many people working the puzzles. :-)

    Reply
  15. O
    11
    J

    Reply
  16. o, 11. j

    Reply
  17. #1 – O
    #2 – 11
    #3 – J

    Reply
  18. 1) O
    2) 11
    3) J

    Reply
  19. 1 – O
    2 – 15
    3 – J

    Reply
  20. O,11,J

    Reply
  21. O, 11, J

    Reply
  22. 0, 11, J

    Reply
  23. O, 11, J

    Reply
  24. 1) O
    2) 11
    3) J

    Reply
  25. O, 11, J

    Reply
  26. O, 15, J, and now i’ll go back and see what everyone else said

    Reply
  27. (1) O, (2) 13, (3) J

    Reply
  28. #1. O
    #2. 9
    #3. J

    Reply
  29. O, 5, J

    Reply

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