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?

45 x 5 + 2 - 20 = ?

If "A" denotes "added to", "B" denotes "divided by", "C" denotes "multiplied by" and "D" denotes "subtracted from", then

76 B 19 C 7 A 3 D 25=?

If 'HARBOUR' is written as 'IBSCPVS' , how is 'HABITAT' written in that code?

Pointing towards a lady in a photograph, Ram says, "Her mother is the mother­in­law of my father's brother". How is the lady related to Ram?

The  following  questions  consist  of two  words  that  have  a  certain  relationship  to each   other,   followed   by   four   alternatives. Select  the  best  alternative  that  has  same relationship as the original pair of words

Stare : Glance

In the following question, select the related number from the given alternatives.
ACOUSTIC : 91 : : RENOUNCE : ?

In the following question, select the related word from the given alternatives.
Bark : Dog : : ? : Sparrow

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