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

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

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

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

I have an eye but still cannot see.

Who am I?

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

What has to be broken before you can use it?

The more you take me, the more you leave me behind.
Who Am I?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?