What is the average measure of great terumah established by the Sages?
The Sages established three measures: generous (1/40), average (1/50), and parsimonious (1/60). The average measure is one fiftieth.
Question 2
If a person intended to give 1/10 as terumah but accidentally gave only 1/60, what is the halachic status?
When one intended to give a larger amount (1/10) but actually gave a smaller amount (1/60), the separation is valid — the result falls within what he intended to give. No supplementation is required.
Question 3
How does the measurement requirement for terumat ma'aser differ from great terumah?
Great terumah is separated by estimation (not by measuring vessel), while terumat ma'aser must be measured precisely because its measure — one tenth of the tithe — is explicitly stated in the Torah.
Question 4
When may great terumah be separated from produce in one location for produce in another location?
Ideally, great terumah should be separated from produce in the same location. However, if one separated from one location for another after the fact, the separation is valid — provided the produce designated as terumah was intact and not deteriorating.
Question 5
A Levite receives grain while it is still in stalks, before the Israelite has separated great terumah. What is the Levite obligated to do?
When a Levite accepts tithes in stalks before great terumah was separated, he is penalized and must thresh and winnow the grain himself, then separate both great terumah and terumat ma'aser from the kernels — not from the straw or chaff.