What is at the end of a rainbow?

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

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

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?

I look at you, you look at me, I raise my right, you raise your left. What am I?

I have eight fingers and two thumbs but I do not live. What Am I?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

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

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

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?