Literate vs Educated
To be literate means to be able to read and write. Any six-year old typically knows how to write, but they are generally not educated on even simple things. They haven't started or maybe just started schooling recently and their knowledge of educational topics is very limited. It's so very important to be literate; if you aren't able to write I strongly encourage you to seek tutoring. Writing and being able to read is the most important thing in life, without it you can't do even the simplest things from reading the news to taking tests and it can even affect things such as your driving or even grocery shopping! As far as education, I believe that you should spend your life continuing to educate yourself - even on the simple things in life. All knowledge is power.
Educated vs Intelligent
Education is providing you with access to information for you to learn. Intelligence is the way we process that information, create connections, inferences and extensions and take that learning to new places that education lead us.
Intelligence is a poorly defined concept. People who write tests claim it is measuring potential, but in fact, intelligence tests measure knowledge, not aptitude.