I taste better than I can smell. Who am I?

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

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

What is at the end of a rainbow?

The more it dries, the wetter it becomes. Can you tell what it is?

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 ?

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

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?

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