Number Series-Test 5 (Finding the wrong number)

1)

In each of the following number series, only one number is wrong. Find out the wrong number?

41, 45, 61, 97, 181, 261, 405

[IBPS CWE (PO/MT), 2014]
Discussion
2)

16, 30, 58, 114, 226, 496, 898

[IBPS CWE (PO/MT), 2014]
Discussion
3)

15, 21.5, 46.5, 145, 585.5, 293317603.5

[IBPS CWE (PO/MT), 2014]
Discussion
4)

5, 6, 16, 57, 246, 1245, 7506

[IBPS CWE (PO/MT), 2014]
Discussion
5)

2, 13, 46, 145, 452, 1333, 4006

[IBPS CWE (PO/MT), 2014]
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