Light
Puns about light.
GasWhat gas weighs the least? Butane. It's a lighter fluid.ZipposWhat's the difference between a hippo and a Zippo? One is really heavy and the other is a little lighter.MorningI stayed up all night because I couldn't figure out where the sun had gone. Then it dawned on me.LampIf someone is unhappy just throw a lamp at them to get them to lighten up.The SunI'm always confused until someone sheds light on something. That's why without the sun, I'd be in the dark.BooksI prefer lanterns over long books. I'm a fan of light reading.CigarettesTwo guys are on a boat with three cigarettes and nothing to light them with. They threw one overboard and the boat is now a cigarette lighter.SunshineA day without sunshine is like, dark.FeathersWhy did the feather, laying next to the brick, ignite? It was lighter.Stolen LampsThe guy who had every lamp in his house stolen was delighted when it happened.BlueWhat is blue and doesn't weigh very much? Light blue.LampThe wise guy thought he'd fix things by turning on the lamp without a bulb. It wasn't very bright.