Ask HN: Project Euler for NLP? and a beginner course?

Hi, I am going to give a small talk tomorrow for some college kids on Natural Language Processing. Its would be nice if I can leave them with a set of simple NLP exercises that they can try to get to learn NLP.

Also, an approachable beginner course that they can learn from on their own without the help of an in person instructor will be something useful for them.

Do you know of any such resources?