Q: What's the difference between Usain Bolt and Hitler?
A: Usain Bolt can finish a race.
Q: What's the difference between a cat and a complex sentence?
A: A cat has claws at the end of its paws and a complex sentence has a pause at the end of its clause.
Q: What nails do carpenters hate to hit?
Q: What do an old person, a Mexican man, and a high school student close to graduation have in common?
A: They're all seniors.
Q: What’s the best thing about Switzerland?
A: I don't know, but the flag is a big plus.