Direction (66-70): What should come in place of the question mark(?) in the following number series?

125, 80 , 45, 20, ?

Direction (66-70): What should come in place of the question mark(?) in the following number series?

4, 5, 7, (?), 19

In this question, a sequence is given, with one term missing. Choose the correct option from the given options.
10 , 18 , 28 , 40 , ? 

What should come at place of question mark (?) in the following number series?

1.7 5.4 19.2 80.8 409 ?

Select the option that will fill in the blank and completes the given series.
35, 52, 75, 110, 151,  ?

Select the option that will fill in the blank and complete the given series.
14, 17, 23, 32, 44 , ___

In the following question, select the missing number from the given series.
 129, 126, 123, 120, 117, ?

The series given below contains a sequence of numbers. Identify the incorrect combination: 

56, 54, 58, 49, 66, 34