What is a primary goal of impartiality in

Study the given pattern carefully and select the number from among the given options that can replace the question mark (?).

Examine the following statements:

1. All colours are pleasant.

2. Some colours are pleasant.

3. No colour is pleasant

'A + B' means 'A is brother of B'

'A – B' means 'A is mother of B'

'A × B' means 'A is husband of B'

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

OP, ON, MN, ML, ? 

In a certain code language,

A # B means A is the sister of B.

A @ B means A is the son of B.

A & B means A is the wife of B.

Which figure will replace the question mark (?) in the following figures series?

How many classes are there in the given picture?