If 10 is the one whose punch line is "Make me one with everything," I have never seen or heard it told about the Dalai Lama. I think I've most often heard the setup as "What did the Zen Buddhist say to the hot dog vendor?"

The recent book on humor co-authored by Daniel Dennett uses this joke to show the cognitive structure of a badly told joke:

A man says to a hot dog vendor, "Make me one with everything"—oh, and the man's a Buddhist!