What number comes next in this sequence:
1 4 8 13 21 30 36 ??
The Logic of the series is as follows :
1 + one (3 letters) = 4
4 + four (4 letters) = 8
8 + eight (5 letters) = 13
13 + thirteen (8 letters) = 21
21 + twenty one (9 letters) = 30
30 + thirty (6 letters) = 36
36 + thirty six (9 letters) = 45
So answer is 45