What should come next in the following letter sequence?

A A B A B C A B C D A B C D E A B C D

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

GHXT, JKUQ, MNRN, PQOK, ?

In the following question, select the related letter pair from the given alternatives.

ZEM : XCK : : ? : ?

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

RTM, QRJ, PPG, OND, ?

Which of the following terms follows the trend of the given list?

YXXXXXX, YYXXXXX, YYYXXXX, YYYYXXX, YYYYYXX, _______________.

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Relinquished

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

LT, MS, NR, OQ, ?

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

RLN, SNQ, TPT, URW, ?

Which of the following terms follows the trend of the given list?

YXYXYZXY, YXYZXYXY, YZXYXYXY, YXYXYXZY, YXYXZYXY, _______________.