We all like to crack jokes and laugh — even the smartest ones. While most of us usually crack some dark humor jokes or pre-prepared corny jokes, others, like bookworms and philosophy students, prefer to use smart jokes. As the name suggests, you might have to rack your brain to see the joke. But once you get them, it will be hard to hold in the smile or laugh. There are even some smart jokes for adults with some interesting twists and turns, which require a more mature audience to understand.