Number Series Questions

Whether the last number 240 in the following series is according to the remaining numbers pattern ?

2, 4, 12, 48, 240

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

107, 104, 100, 95, ?, 82

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

19, 21, 25, 27, 31, ?

Select the number missing from the given series.

3, 12, ___, 21612

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

9, 13, 18, 24, 31, 

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

79, 159, 199, 219, ?

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

15, 22, 31, 42, 55, ?

Choose the correct alternative that will continue the same pattern and replace 'x' in series 6,18,42,78,x