Find the missing number in the series?

4, 18, ?, 100, 180, 294, 448

What will come in place of the question mark (?) in the following number series?11, 19, 40, 87, 173, ?

In the following question, select the missing number from the given series.
2, 5, 17, 71, ?

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

9, 11, 14, 18, 23, ?

In the following question, select the missing number from the given series.
19, 26, 45, 71, 116, ?

Select the missing numbers from the given alternatives

8  21  4

27 ?   53

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

5 , 10 , 30 , ? , 600 , 3600

In the following question, select the missing number from the given series.
3, 8, 5, 27, 8, 64, 12, 125, 17, ?

In the following question, select the missing number from the given series.
21, 25, 52, 68, 193, ?