Oh man, if they had tried to make Star Wars educational when I was a kid, that might have killed it for me. ;)

If Trooper TK-421 only has eight shots left in his blaster, and five are needed for proper disintegration, will he have enough shots for Aunt Beru and Uncle Owen?

If Han Solo dumps his cargo of spice to avoid getting caught, and the street price increases by ten percent before he can repay Jabba, how much more will he owe?

If the Death Star torture droid injects Princess Leia with ten cc's of truth serum, how long before she sells out the Rebellion, thus ending the film prematurely?

If Darth Vader grabs a rebel by the neck, how much pressure must he apply before the rebel's neck snaps?

How much water can Wuher safely add to his drinks before his Cantina patrons catch on and kill him?

If Porkins can safely eject from his X-Wing fighter before it explodes, how many minutes before he dies anyway?