If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

What do you answer even though it never asks you questions?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Which five letter word can be added at the end of below word to form a
valid word?

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It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?