Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. 12, 60, 240, 720, ?

Which of the following terms follows the trend of the given list? abABABAB, ABabABAB, ABABabAB, ABABABab, abABABAB, _______________

If, 6x4= 12, 4x12= 24, 12x6= 36 then 6x9= ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
49, 64, ?, 100, 121

Of the six members of a panel sitting in a row, A is to the right of C, but left of B. E is sitting left of C and right of D, who is sitting to the right of F. Find the members sitting at the two ends of the row.

L, M, N, O and P are sitting in a line facing east. L and M are sitting together. N is sitting at north end and O is sitting at south end. P is the neighbour of M and N. Who is third from north end?

Pointing towards a boy, a girl says, "He is the only son of my mother's brother". How is the girl related to the boy ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
CEG, IKM, OQS, ?