Yes. You are encouraged to write.
I am not certain of the rules in a prison, but I would not have thought that prisoners would be allowed to go 'on line' while in prison.
It depends on the prison and the prisoner. Some are not allowed pen and paper for various reasons, but if they are able to write, they are welcome to have their book published.
It may depend entirely on the type of prison, or the prison administration rules as to whether this activity is allowed or not. Offhand, I would say that it is more likely dis-allowed than allowed.
Absolutely - they're in an academy - not a prison ! It's like asking if a college student in a dormitory is allowed to write to or phone their parents !
How do i go about getting married in prison
None
No, you are not allowed to bring digi cams in prison.
He wrote his memoir Mein kampf while he was in prison.
Without sounding flippant, I would suggest that you write to each of these cousins and ask if they correspond with each other.
prison
brake out of prison and tell her
Don't! you shouldn't write to him