Odd man out and series

1

Directions : Find out he wrong number in the series : 4,5, 15, 49, 201, 1011, 6073

A. 5
B. 15
C. 49
D. 201
E. 1011

2

Directions : Find out he wrong number in the series : 888, 440, 216, 104, 48, 22, 6

A. 440
B. 216
C. 104
D. 48
E. 22

3

Directions : Find out he wrong number in the series : 2, 3, 6, 15, 52.5, 157.5, 630.

A. 3
B. 6
C. 15
D. 52.5
E. 157.5

4

Directions : Find out he wrong number in the series : 5, 8, 20, 42, 124, 246, 736

A. 8
B. 20
C. 42
D. 124
E. 246

5
Directions : Find out he wrong number in the series : 1050, 510, 242, 106, 46, 16, 3
A. 510
B. 242
C. 106
D. 46
E. 16