Solution:

Princes (male and plural) add an 's' Princess (female and singular)

Solution:

Chair.

Solution:

The required word is BANANA.

Solution:

sawdust

Solution:

They are sunglasses (sit on the bridge of your nose)

Solution:

Stationary and Stationery

Solution:

Eyes

Explanation:
We have black but we are not tea seeds - Pupil of eye
We have white buts we are not lime - sclera of eye
We have water but we are not a river - general tears in eyes to protect eyes.
We have feather but we are not birds - lashes.

Solution:

A Mirror

Solution:

A nuclear bomb.

Solution:

Noon