Select the term that will come next in the following series?
CAY, FDB, IGE, ?

Select the letter that will come next in the following series.
O, R, U, X, A, ___

In each of the letter series, find the missing letters.

a – c c a b c – a b – c – b c c 

Which of the following words will be at third place in Dictionary ?

Fill in the blank by suitable letters.
a_c_ba_ca_cb

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
o p _ o s _ t _ o _ p o _ i t e _ p p o _ i _ e 

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
P _ R _ O _ _ E _ R _ S _ _ _ R O S

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
AY, CW, EU, ?