only some people can but yes it's possible
It is not impossible, but barley possible. If someone else does it that won't count.
it depends on your flexible but yes it is possible.
Yes, but less than 5% of the people in the world can do it.
This is from Guinness World Records: "Elbow Licking. Contrary to popular urban legend, it is quite possible to lick your own elbow. Guinness World Records receives about five claims a day for this...