Q: How do you put an elephant into a fridge?
A: Open the door, put the elephant in, close the door.
Q: How do you put a crocodile into a fridge?
A: Open the door, take the elephant out, put the crocodile in, close the door.
Q: How do you cross a river with a crocodile and no bridge?
A: Swim across, the crocodile is in the fridge.