Verbal Reasoning - Mental Ability Questions

From the given alternative words, select the word which cannot be formed using the letters of the given word:
ECCENTRICITY

In a certain code language, '-' represents 'x', '÷' represents '+', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.

2 x 12 ÷ 32 - 5 + 4 = ?

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

BCD, EFG, IJK, NOP, TUV ?

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

AMJ, DPM, GSP, ?, QYV

From the given alternative words, select the word which cannot be formed using the letters of the given word:

CARPENTER

Select the missing number from the given options?

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

4, 9, 16, 25, 36, ?

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

NO, QR, UV, ZA, ?