anyone at the level of spivaks book is harmed more than helped by a solutions manual. i.e. if you need a solutions manual, you aren't getting spivak.
so the most useful answer is to advise the asker to go back to work trying to grasp the subject and work the problems himself.
this was essentially mruncleamos's answer.
a beginning grad student should be able to read this book and do most of these problems.