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

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

Find the 8 in the below-given Image.

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

Why are all black people so quick ?

What does this rebus puzzle means ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

What has hands, but can’t clap?