Verbal Reasoning - Mental Ability Questions

If '←' stands for '+', '→' stands for '-', '↑' stands for '÷', '↓' stands for 'x', '^' stands for '=', then which of the following alternatives is correct?

Mr. X starts from point A travels 80 km towards west, takes a left turn, travels 50 km and reaches point B. What is the shortest distance between points A and B ?

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

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

18, 25, 34, 45, ?

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

80, 130, 190, 260, ?

Introducing a girl, a man says, "She is the daughter of my father's daughter". How is the girl related to the man?

Nurse : Ward :: Teacher : ?

If '+' stands for '÷', '­' stands for '=', 'x' stands for '+', '÷'stands for greater than, '=' stands for less than, '>' stands for multiplication and '<' stands for subtraction, then which of the following alternatives is correct?