do macbooks bought from us work in middle east?

MacBooks are configured to operate anywhere in the world. They also come with a universal power plug, so you don't need to worry about switching current. In System Preferences > Language and Region you can set up your Primary and secondary language and of course choose your timezone. The only thing that will differer will the be layout of your keyboard. There also may be some limitations imposed by the country you are going to if it is the Middle East.