Verbal Reasoning - Mental Ability Questions

If "A" means "plus", "B" means "divide", "C" means "multiply" and "D" means "minus", then 180 B 36 C 5 A 8 D 32 = ?

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

15 - 5 + 25 ÷ 10 = ?

In the following question, select the related word from the given alternatives.
Ampere : Electric current : : Fathom : ?

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

0, 3, 8, ? , 24, 35

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

VW, XU, ZS, BQ, ?

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

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

Facing the East, Rahul turned left and walked 10m, then he turned to his left again and walked 10m. He then turned towards his right and went straight to cover 25m. In which direction is he from his starting point?