Number Series Questions

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

4, 5, 12, 39, 160, ?

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

1, 2, 4, 7, 11, ?

In the following questions, various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. BF, CH, ?, HO, LT

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

5, 8, 11, 14, 17, ?

Choose the correct alternative that will continue the same pattern and replace 'x' in the series 6834,6151,5536,4983,x

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

9, 11, 14, 18, 23, ?

Find the first negative term of the below A.P.

129, 120, 111, 102, ...