In following question, a sequence is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
7, 12, 22, 42, 82, ?

20, 21, 19, 16, 17, 13, 14, 11, ?

4, 4, 8, 24, 96, 480, (?)

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

JI, LK, NM, ? 

6, 42, ?,  1260, 5040, 15120, 30240

In the following question, select the figure from the given alternatives in place of the question mark.

In each of the following questions, a sequence is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
2, 3, 5, 9, 17, ?

Which of the following numbers will replace the question mark in the given series?
3, 7, 22, 89 , ?