Verbal Reasoning - Mental Ability Questions

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
642 x 6 ÷ 25 + 4 = ?

Choose the odd word/letters/number/number pair from the given alternatives.

In the following series, one letter is missing as shown by the ?. Select the missing letter from the given options.

N, L, J, H, ?

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, ?

R is P's father's nephew. Sis P's cousin but not the brother of R. How is S related to R?

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

j_l_jk_m_kl_

If E = 5, GUN = 42 and ROSE = 57, then what is the value of GATE ?

Select the missing number?