How far must an ordinary tree be planted from a city?
An ordinary tree must be at least 25 cubits from a city. Carob and sycamore trees — which have larger root systems — require 50 cubits.
Question 2
Why must tanneries (leather works) be placed to the east of a city?
The east wind is warm and reduces the harmful smell from tanneries — placing them to the east minimizes the odor that reaches the city.
Question 3
A tree was planted before a neighbor dug a cistern nearby. The tree's roots now damage the cistern. Who must cut the roots?
The tree owner must cut the roots — even though the tree predates the cistern. Current damage obligates action regardless of the order of planting.
Question 4
If an upper-floor owner pours water on his floor and it descends into the room below, causing damage, is he liable?
The upper-floor owner is liable for water damage he causes to the lower floor — ownership of the upper level does not include the right to damage what is below.
Question 5
What is the required distance between a threshing floor and a city?
A threshing floor must be at least 50 cubits from a city — far enough that the wind does not carry chaff into the city and damage produce or inhabitants.