Number Series Questions

In the following question, select the missing number from the given series.

15, 22, 31, 42, 55, ?

In the following question, select the missing number from the given series.

6, 11, 16, 21, 26, ?

In the following question, select the missing number from the given series.

8, 16, ?, 64, 128

In the following question, select the missing number from the given series.

4, 5, 8, 9, 12, 13, ?

In the following question, select the missing number from the given series.

6578, 4381, 2653, ?, 322

In the following question, select the missing number from the given series.

5, 9, 13, 17, ?

In the following question, select the missing number from the given series.

23, 29, 24, 30, 25, ?