Solution:

I Am stone.

Explanation:
Stone is 5 letter word. if remove word one(not 1 letter) we will get st.

Solution:

Typewriter

Solution:

A nuclear bomb.

Solution:

Photocopier Machine

Solution:

Kiwi

Kiwi is a bird.
Kiwi is a fruit.
Kiwi is a person ("Kiwi" is a common self-reference used by New Zealanders)

Solution:

A Mirror

Solution:

Point

ViewPoint, BoilingPoint, CheckPoint, and PinPoint are the common word used.

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:

abracadabra

Solution:

Stationary and Stationery