In each of the following questions, various terms of a letter series are given with one term missing as shown by (?). Choose the missing term out of the given alternatives.

U, O, I, ?, W

In each of the following questions, various terms of a letter series are given with one term missing as shown by (?). Choose the missing term out of the given alternatives.

A, B, D, G, ?

In the following question, various terms of a letter series are given with one term missing as shown by (?). Choose the missing term out of the given alternatives.
AZ, CX, FU, ?

In the following question, various terms of a letter series are given with one term missing as shown by (?). Choose the missing term out of the given alternatives.
AZ, GT, MN, ?, YB.

In the following question, the various terms of a letter series are given with one term missing as shown by (?). Choose the missing term out of the given alternatives.
AD, EH, IL, ?, QT

In the following question, various terms of a letter series are given with one term missing as shown by (?). Choose the missing term out of the given alternatives.
FLP, INS, LPV, ?

In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it.
_ xyx _ xxy _ xxx _ xx

In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it.
_ _ aba _ _ ba _ ab

In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it.
_ bcdbc _ dcabd _ bcdbc _ dc _ bd