Quick Test

Without using a calculator - You are driving a bus from London to Milford Haven in Wales. In London, 17 people get on the bus. In Reading, six people get off the bus and nine people get on. In Swindon, twopeopleget off and four get on In Cardiff, 11 people get off and 16 people get in. In Swansea, three people get off and five people get on. In Carmathen, six people get off and three get on. You then arrive at Milford Haven. What was the name of the bus driver? (See comments for the answer if you're really this stupid.)