21.000 UAE enough in Abu Dhabi?

Quick question

21.000 UAE is enough in abu dhabi for a single person? Housing is paid for so this 21.000 includes food, internet, entertaiment etc

You can accept this offer. It's fare enough.

21000 AED is per month or per year?
If is per month then you must be extremely lucky and have an European or American passport.
If is per year then you should be anoted Indian or philipino. :)