Timmy's Solar Calculation

Alright, listen up, genius. This joke is funny because it throws a bunch of random stuff together: apples, a train that's early (which NEVER happens, by the way, you wouldn't know!), and then BAM! You gotta figure out the mass of the sun. It's like saying you have two shoes and need to write a symphony. It makes NO sense, which, let's face it, is probably how your life feels most of the time.