A series of (fun) questions about the trees, the land, and the purchasing thereof. Including details of the distances between the trees and the implications of that. Also, a new mishnah, in 2 parts: 1: Selling animal body parts and when other pieces (and what pieces) are thought to be included by default (or specifically not, as the case may be). 2: Selling one item as a deliverable, but what is delivered is something else (wine vs. vinegar, for example). Which leads into when one may renege on a deal - because the deal is not being upheld.