If the universe is everything, and scientists say that the universe is expanding, what is it expanding into?

Smoking cures weight problems, eventually.

I Xeroxed a mirror. Now I have an extra Xerox machine.

I thought I would be a guy on the radio.

I was skydiving horizontally.

How young can you die of old age?

Last night somebody broke into my apartment and replaced everything with exact duplicates... When I pointed it out to my roommate, he said, "Do I know you?