Select the number from among the given options that can replace the question mark (?) in the following series.
 16, 32, 14, 19, 37, 21, 22, 42, ?, 25, 47, 35 

Which letter-cluster will replace the question mark (?) to complete the given series?

abCD, fgHI, ?, stUV, abCD

Which letter-cluster will replace the question mark (?) to complete the given series?

LE, OJ, UO, DT,?

Which of the following numbers will replace the question mark (?) in the given series?
 17, 20, 60, 64, 256, 261, 1305, ?

Select the number that will replace the question mark (?) in the given number series.
 146, 90, 56, 34, 22, ?

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

41, 54, 67, 80, 93, ?

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

5       10      15        20      25 ____?

Which of the following letter-clusters will replace the question mark (?) and complete the following letter-cluster series?
 DW, FU, GT, IR, JQ, ?