What is at the end of a rainbow?

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

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

It belongs to you, but other people use it more than you do. What is it?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

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?

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?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?