how much fat will I lose in 2 weeks? (ForgottenSkillz)

I have 2 weeks on me to lose as much fat as possible. I'm currently at 20 percent body fat and I want to lose a lot of it in 2 weeks. I'm gonna be eating around 2000 calories a day and burn 4000 to 5000 calories a day. I'm gonna do this by lifting weights..