A careless seller does not intend to include the hide in the price — it is considered a gift, thus mundane. But from a merchant — the hide is included in the holiness.
Question 2
What is the ruling on the wine?
If designated after sealing — the tithe acquires the jugs, as after sealing the wine and jug are considered one unit. If designated before sealing — the jugs are considered mundane.
Question 3
How much should he pay?
Pays one shekel — the price at the time of drawing. The entire profit belongs to the second tithe, and he must eat all the fruits according to the law of tithe.
Question 4
What can he do with the money?
It is permitted to transfer the holiness of second tithe money to fruits even if not in the same place — the money becomes mundane and the fruits are brought to Jerusalem and eaten there.
Question 5
Who can transfer certain second tithe fruits?
Certain second tithe fruits must be eaten in purity, thus they can only be transferred to a friend who is careful about this. Demai — permitted even to an am haaretz, as the obligation of the tithe is only rabbinic.