Yes, in most states they allow a person to read the questions on the test for the person. But they don't allow cheating, and the person must verbally answer ALL of the questions asked. Talk to your local licensing bureau to find out the regulations in your area.
il·lit·er·ate i?lit?rit/ Adjective Unable to read or write. Noun A person who is unable to read or write.
Technically, no..... if you can't read or write, you would be unable to do the written test, or read simple signs like "stop". Of course, theres always ways around that, like having someone else do the test for you.
So yes an illiterate person COULD have a license.... but they really shouldn't......
I don't know about other countries but India is planning to issue driving licences to those drivers who have some basic education and for commercial vehicles they should pass at least SSC. (10th standard).