Which letter-cluster will replace the question mark (?) to complete the given series?

TYG, ?, PSM, NPP, LMS

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
 NMQR, NQYD, NUGP, NYOB, ?

Which letter-cluster will replace the question mark (?) to complete the given series?
 CZNM, FXOL, IVPK, ?, ORRI

Which letter-cluster will replace the question mark (?) to complete the given series?

ZUPK, YTOJ, ?, WRMH, VQLG

Which letter-cluster will replace the question mark (?) to complete the given series?
 ERKV, HYVK, ?, NMRO, QTCD

Which letter-cluster will replace the question mark (?) to complete the given series?

DAJ, GEL, JIN, MMP, ?

Which letter-cluster will replace the question mark (?) to complete the given series?
 TBNF, CJUL, LRBR, UZIX, ?

Which letter cluster will replace the question mark (?) to complete the given series?
 ANGE, DSBB, GXWY, ?