What will come in place of question mark(?) in the following number series?

BCF, CDG , DEH, ?

Arrange the given words in the sequence in which they occur in the dictionary.
1.Ropped
2.Roster
3.Roasted
4.Road
5. Roller

In the following question select the odd number from the given alternatives.

In the following question, select the odd letters from the given alternatives.

In the following question select the odd word from the given alternatives.

Direction: In the following question, select the related letters from the given alternatives. 

LMN : QPO :: OPQ:?

Direction: Select the related word from the given alternatives.

Player : Team :: Minister : ?

Justice A.M. A three-judge bench headed by Khanwilkar ruled on which case by a 2: 1 majority?