Find the missing letter in this puzzle.
Which letter will come at first place?

Find the missing letter in this puzzle.
Which letter will come at first place?

The answer is:
O, the boxes represent the first letters of "one, two, three, four, five, six" etc.
I think the other answers about it being:
O
are correct, but at the same time there is zero context for the puzzle. You're just asking me to spot a pattern. As such, I propose that the answer could just as easily be:
E
Why?
-Treat each column as an individual vertical sequence
-The letters of each column repeat vertically
-E.g. from right-most column to left-most column, bottom to top:
T-F-T-F
N-F-N-F
E-T-E-T
S-T-S-T
S-E-S-?
My alternative answer is:
E
0 , alternative answer is just to confuse with similar pattern.
– Himanshu
May 08 '15 at 17:01
O (denoting One)
Others in the puzzle
O(1) T(2) T(3) F(4) F(5) S(6) S(7) E(8) N(9) T(10) E(11) T(12) T(13) F(14) F(15) S(16) S(17) E(18) N(19) T(20)