Number Series Questions

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
-7.25, -5.75, -4.25, -2.75, ? , 0.25

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

68, 72, 65, 69, 62, 66, _?__

In the following question, select the missing number from the given series.672, 666, 660, 654, ?

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

5, 9, 13, 17, ?, 25

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

3, 5/3, 1/3, ? , -7/3, -11/3

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 100, 50, 52, 26, 28, ? , 16, 8

A series is given,with one term missing. Choose amongst the given responses choose the meaningful one

206, 221, 251, 296, ?, 431

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

41, 43, 47, 53, ?