Why is it against the law for a man living in Delhi to be buried in Mumbai?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What will you call your mother's brother's brother-in-law?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

What has 88 keys?

I have teeth but i don't bite. Who Am I ?

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

It is always ahead of me yet I can never see it. What is it?

What is always in front of you but can’t be seen?