I’m tall when I’m young, and I’m short when I’m old. What am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

How many letters are in the alphabet?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What have one eye but still cannot see?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

If a wheel has 54 spokes, how many spaces are there between the spokes?

The dirtier I get, the whiter I look. Who am I?