Select the option that can replace the question mark (?) in the following series. 

B, D, G, L, S, ?

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

BOND, FKRZ, JGVV, NCZR, ?

Select the number that can replace the question mark (?) in the following series.   

16, 20, 29, 45, 70, ?

Select the number that can replace the question mark (?) in the following series.

31, 44, 58, 73, 89, ?

Which of the following numbers will replace the question mark (?) in the given series?

7, 19, 4, ?, 1, 25

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

TSF, RPJ, PMN, NJR, ?

Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter series.
S C R _ W S _ R _ W _ C _ G W S _ R H _