My mom said, 'I think you’re going to be okay.' I said, 'What does that mean?' She said, 'It means I don’t know.'

My math teacher explained a problem for 10 minutes. I said, 'Can you just give me the answer?' He said, 'No, I want you to understand it.'

My friend asked me what 'obscure' meant. I said, 'It means no one knows it.' He said, 'Then why are you telling me?'