Riddle: A man goes into a hardware store. He asks the clerk "How much is 6?" Which the clerk responds with "6 is $0.50." "How much is 60?" The man asks. "$1.00." Answers the clerk. "Okay, I will take 600." Says the man. "That will be $1.50, please!" Says the clerk. The man pays and leaves. What did the man buy?
Answer: He bought house numbers! Each number is $0.50!