2. Barcode was very easy for my S60 based cell phone with UpCode installed:D
1. I have absolutely no idea what that code is;]
3. Looks familiar to me, Morse?
4. Probably LSb in each pixel's RGB is data medium. I didn't check it, just assumption.
5. I am not sure how to interpret this in other then biochemical way:D
6. I can recognize some of this signs, but together... it has no sense:D
7. Is it so simple?
8. I don't know finger language;]
9. See 1.
10. Looks like this very old 'code' used on newsgroups for transferring binaries.