Translation of nutty in Spanish

Everyone says, that I am sending always silly pictures, so here 4 more images. Your picture is very cool, especially the hat, it has a really cool shape. Are there different sizes?
It certainly is one of the reasons that a student from abroad is not as good in English as people who were born in America. This is an obstacle for all students and a challenge for the educational system.
I'd be very happy if we could write me. I have read your blog. Are you from the U.S.? Where exactly are you from, which state? I have visited Chicago last year because my grandma lives there.