Where can I find a good Hard Disk?
@Jordan Prices you could find multiple types of hard disks at their shmesani branch.
Where can I buy iphone 5s gold original for 400 or 300 jds?
You can't find a new iphone 5s in that price range. But you might find a used one.
Where can I find iphone 5s accessories?
I recently bought some @Anfal they have some good stuff, But first try @MultiVision i'm sure you'll find way better collections there.
Where can I buy a police siren?
It's hard or even impossible to find any here in amman! But if you know anyone in Aqaba, He can help you finding one there!
Where can I rent Xbox games for cheap?
Rent?! I don't think you can. You could try buying used ones for a really good price @Orbit in rabieh
Where can I open my first bank account, i need a bank with great costumer service and they give away amazing prizes?
To open an account in @The Arab Bank or in any other bank they'll request a electricity/water bill, your P.O box name/number and your ID and 'complicate things for you! On the other-hand bank of jordan is the only bank that requires you to only bring your ID to open an account!