Double

An explorer goes into an undiscovered tomb for the first time, and in the center of the tomb there is a lamp.

So he picks it up and rubs the dirt off of it, and out comes a genie out of the lamp and he says, "I want to know the person you hate the most"

The explorer says, "That's gotta be my ex-wife. Why?"

"I am a cursed genie, I will grant you three wishes but whatever you wish for your ex-wife will get double the amount."

"OK, I wish for a billion dollars."

"Granted, but your ex-wife gets two billion."

"I wish for a mansion in California with a swimming pool, and tennis courts, everything."

"Granted, but your ex-wife gets two. This is your final wish"

The explorer walked around the room and came back to the genie with a stick and says, "Ya see this stick? I'd like you to beat me half to death."