Choose the option in which the word HEAD is used incorrectly or inappropriately.

(1) The economies of all the nations are heading fast for recession. (2) The head of my Dept. was a great intellectual with a sweet and amiable personality. (3) Anna Hazare, fighting a lone battle against corruption, is heading against a brick wall. (4) Before getting a good job in the US, my friend served as the head waiter for six months. (5) There was head-over head discussion before the deal was signed.