Verbal Reasoning - Mental Ability Questions

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

12, 24, 72, 288, ?

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

XBC,WFG,VJK,?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
NM, PK, SI, ?

If '+' stands for multiplication, '-' stands for addition, 'x' stands for division, then what is the value of 128 + 9 - 16 x 4 = ?

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

10, 22, 46, ?

In a certain code language, “TRUMP” is written as “46321” and “GRAIN” is written as “76598”. How is “GRUNT” written in that code language?

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
REASONABLE

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

250, 370, 394, 400, ?