Mr. Collier is mad at Mr. Greene. The other day, Mr. Greene was in his yard with a dog. Mr. Collier walked up to Mr. Greene and asked, “Does your dog bite?” Mr. Greene said, “No.” So then Mr. Collier reached out to caress the dog, but it bit him. Mr. Collier sued Mr. Greene. Later, Mrs. Greene came to her husband’s defence. She said that their dog had never bitten anyone, and Mrs. Greene always spoke the truth. How can that be?

Answer
Mr. Greene was speaking the truth: his dog does not bite. That was not his dog that he was standing with in the yard.