Verbal Reasoning - Mental Ability Questions

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

BB, DZ, GW, KS, ?

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Precious

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

BM, FQ, JU, ?, RC

In the following series, two terms are missing as shown by the question marks (?). Select the missing terms from the given options.

I-10, L-13, O-16, ?, ?, X-25

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

GHI, ? , TUV, BCD

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?

NO_PQN_PP_NOP_Q

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
72 x 9 - 14 + 2 = ?

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

PNR, RQV, TTZ, ?, XZH