Here's the question -
Seven gentlemen are getting ready to leave a business meeting. They have all just met for the first time, and each of them will want to shake hands with each of the others.
How many handshakes will be exchanged? (Remember: If two gents shake hands together, that only counts as one handshake. Also: no gentleman shakes hands with himself, unless he is praying, very cold, or addle-witted).