what does this picture(rebus) riddle means ?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Through your logical capabilities, can you make 7 an even?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

A father is locked up in jail. His wife has gone bankrupt. Their male child has to sell his hotel in order to gain some money. Yet their girl child does not care and is quite happy.

How can someone be so rude?

Which is the correct shadow of the bird?

What does Alexander the Great and Winnie the Pooh have in common?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?