Number Series Questions

Select the missing numbers from the given alternatives

8  21  4

27 ?   53

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

2187, 729, 243, 81, 27, ?

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

9, 13, 22, 38, 63, ?

Which number will complete the series?

11,13,17,19,23,25,_____

Find the wrong number from the following series ?
37   47    52    67    87    112    142

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

19, 21, 25, 27, 31, ?

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

1728, 864, 432, 216, ?

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

6, 13, 20, 27, ?