Is it a computer?
No, it's a trash can.
Is it a trash can?
No, it's a desk.
What is it?
It's a computer.
What it is?
It's a clock
Is it a clock?
No, it's a door!
Is it a desk?
No, it's a chair!
What is it?
It's a CD Player
What it is?
It's a board