Q3.

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

MNK, NOJ, OPI, PQH, ?

Q4.

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

QAZ, SDF, UGL, ?

Q5.

Which of the following alternatives will replace the question mark?

Chaos, Conflict, Negotiation, Resolution, ?