. ____, 9, 25, 49, 121, 169

What number comes next in the series?
1, 2, 3, 5, 8, ___

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
?, Vice President, Prime Minister, Deputy Prime Minister 

Identify the correct option to complete the following series.
1, 3, 5, 11, 21, 43, 85, 171,___

Find the next number in the series.
4, 9, 20, 43, ?

Select the number from among the given options that can replace the question mark (?) in the following series

237, 196, 155, 114, ?

6, 42, ?,  1260, 5040, 15120, 30240

Which group of letters will complete the given letter series by sequentially placing the blank space?
M_OMMN_M_NOMMN_M