What number should logically replace the question mark?

Question

A. 12

B. 24

C. 36

D. 2

Solution:

Starting at 4 and moving three segments counter clockwise yields the sequence 4, 9, 16, 25, ?, 49, 64.

These are perfect squares : 2², 3², 4², 5², 6²,7².

Hence, the answer is 6² = 36.

What number should logically replace the question mark?	Crack the series missing Number Puzzle ?
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