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

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

Superannuated

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

NC, OE, PG, QI, ?

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

AHR, HOY, OVF, VCM, ?

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

ABABCDAB, ABADCBAB, ABCDABAB, ADCBABAB, CDABABAB, _______________.

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

CLG, GPK, KTO, OXS, ?

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

PMO, LIK, HEG, DAC, ?

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

XYXYZXYXY, XYXYXYZXY, XYXYXYXYZ, ZXYXYXYXY, XYZXYXYXY, _______________.

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

Unwarranted