R/explainlikeimfive
Quantum Mechanics.
Jim Jones, I heard he took out 909 people with one punch.
Ahmad.
Ten. (Shame this one doesn't work too well for reddit - the funniest part of this joke is the third punchline enjoying people struggle to understand what the hell you're talking about.)
He watched movie Cast Away (starring Tom Hanks) and ate some potato chips.
Ho, ho, ho!
Watch a movie with him.