For Clojure, this is a good place to start:
http://en.wikibooks.org/wiki/Learning_Clojure
I also like the lengthier, but most excellent, tutorial by Mark Volkmann: http://java.ociweb.com/mark/clojure/article.html
Project Euler worked well for me as warm-up exercises. And I just found a Wiki of Project Euler solutions in Clojure: http://clojure-euler.wikispaces.com/