I know this one and it's not a riddle... 😉 Isn't it the one that goes like that?
-How do you put a giraffe in a refrigerator?
-You open the door of it and put the giraffe in.
-How do you put an elephant in?
-You can't. The giraffe is already there.
-There is an animal council and one is missing. Why?
-It's the giraffe. It's in the refrigerator.
My apologies if it's not this one. But I thought it was a joke, not a riddle...