This is impossible to solve, because if I were telling the truth, then I would be lying, which doesn't make sense since I am telling the truth. If I am lying, then what I said was true and that doesn't make sense either.
There is a magical door, that has only one rule. A witch can't go in but her broom can. She sometimes stick her teeth in but never her mouth. She likes to brush her teeth with toothpaste but never with her hands. Her friend Moloia can't go in but Reene can. So, what is the rule?