Why did the goblin go to the career counselor?

Because it wanted to find a job that was a good fit for its skill set and didn't involve hiding under bridges all day.

Why did Medusa finally get a haircut?

Because she was tired of all her split ends turning to stone.

Why did the witch's cat join a band on Halloween night?

Because it wanted to be the purr-cussionist!

Why did the werewolf go to the post office?

Because it needed to paws for a stamp.