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

189, 532, 316, ?, 377

In the following series find the missing numbers.
21, 26, 33, 42, 53,?

What will be the next number in the given series ?
3, 28, 4, 65, 5, 126, 6, ______? 

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.
m _ nm _ n _ an _ a _ ma_

Directions : In each of the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it.

ab ---b -bbaa- 

In the following series find the missing numbers.
5, 13, 40, 104,?

What will come at the place  ?    In the given series?
BZA, DYC, EXE, ? , JVI. 

255, 366, 479, 684, ?