Good Riddles

Question: What does a calf become after it's 1 year old?

Question: What do you call a bruise on a T-Rex?

Question: What is the difference between a locomotive engineer and a teacher?

Question: What did the calculator say to the Math student?

Question: A son's age is the age of his dad's age's digits added together. The son is not nine or older. The dad is of legal age. The dad's age doesn’t end in a zero, and is more than twenty, but less than twenty-five. How old is the dad, and how old is the son?