Are you currently at your house?" he asked. "Um, no," I said. "That was a trick question. I knew the answer, because I am currently at your house.
John Green (2012). “The Fault in Our Stars”, p.82, Penguin

Are you currently at your house?" he asked. "Um, no," I said. "That was a trick question. I knew the answer, because I am currently at your house.