What number comes next in the series?

5 15 5 18 5 24 14 20 _

I am an odd number. Take away a letter and I become even. What number am I?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

What can you see in the middle of March and April that you can never see in any other month?

A guy in his thirties is found dead in a forest. The shocking thing about the body is that he is wearing his swimming trunks snorkel and a facemask.

For your information, the nearest lake is some 10 miles away and the sea is hundreds of miles away.

How did he die then?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?