Select the letter-cluster that can replace the question mark (?) in the following series.TXB,QWE,NVH,KUK,?ITMJTMHTNHSN

Select the letter-cluster that can replace the question mark(?) in the following series.TULG, WRPC, ZOTY, CLXU,?FIBQFICRFJCQGIAQ

Following questions are based on series of letters/numbers. One term is missing which is shown by ‘?’. Select the alternative that can replace ‘?’Q 11.    7, 8, 17, 42, ?, 172, 293617191101Q 12.     5, 6, 15, 50, ?, 1044207337197527Q 13.     13, 25, 48, 93, 182, ?, 712239359413329Q 14.      H I I K J M K O L Q ? ?M PM SM NM TQ 15.       A V B T C R ? ? E N F LS TE PD PD OQ 16.        BXJ, ETL, HPN, ?, NHRK L PI P LJ L PL I P

n each of the following questions a number/letter series is given.Which one of the alternatives will replace the question mark (?)1. 11, 29, 55, ?, 131(A) 110 (B) 81(C) 89 (D) 78

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.                                                      MHZ, NIW, OKT, PNQ, ?

What will replace the question mark (?) in the following series?1, 3, 9, 39, 249, 2559, ?.