Directions (Qs.1 to 5): In each of the following questions a number series is given. In each series only one number is wrong that does not follow the given pattern of the series. Find out that wrong number.
Question No : 1
4 7 12 19 31 50 81
(1) 4
(2) 7
(3) 19
(4) 81
(5) 31
Question No : 2
8 7 12 32 128 635 380
(1) 635
(2) 12
(3) 7
(4) 32
(5) 3804
Question No : 3
8 4 6 8 2 16 1
(1) 1
(2) 6
(3) 16
(4) 2
(5) 8
Question No : 4
46 47 56 81 131 211 332
(1) 56
(2) 131
(3) 211
(4) 332
(5) 81
Question No : 5
33 321 465 537 573 590 600
(1) 321
(2) 465
(3) 573
(4) 537
(5) 590