Which is the correct shadow of the bird?

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 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 have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

John was piloting a plane behind a car but was never able to overtake it. Why?

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?

How can you take 2 from 5 and leave 4?