Google serves up the answer to another age old question.

Link : http://www.google.com/search?hl=en&c2coff=1&safe=off&rls=DVXA,DVXA:2005-02,DVXA:en&q=how+many+licks+does+it+take+to+get+to+the+center+of+a+tootsie+pop&spell=1