A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
 NMRQ, NDZG, NUHW, NLPM, ?

Which of the following numbers will replace the question mark (?) in the given series?
 11, 20, 43, 94, 187, 336, 555, ? 

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

FU, LO, RI, ?

Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?
 XUR, WTQ, VSP, URO, ? 

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_q_rpq_r_qq_

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
0.5, 2, 3.5, ? , 6.5

The series given below contains a sequence of numbers. Identify the incorrect combination.
1, 8, 3, 6, 5, 4, 6

Which of the following numbers will replace the question mark (?) in the given series?

121, 169, 289, ?, 529, 841