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?
550 x 22 - 24 + 3 = ?

Raju introduces Yash by saying, "He is the husband of the granddaughter of my grandmother's husband". How is Yash related to Raju?

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

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_cca_a_ca_ac_ab

In the following question, select the related word pair from the given alternatives.
Canada : Ottawa : : ? : ?

If P denotes multiply, T denotes subtraction, M denotes addition, B denotes division then 28B7P8T6M4 = ?

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

13 - 14 + 15 x 70 ÷ 14 = ?

Find the next in this series:
YC3, XF6, WI9, ........