What episode number was written by Gregg Hurwitz?
CREATE TABLE table_24938621_3 (no VARCHAR, written_by VARCHAR)
SELECT no FROM table_24938621_3 WHERE written_by = "Gregg Hurwitz"
### Context: CREATE TABLE table_24938621_3 (no VARCHAR, written_by VARCHAR) ### Question: What episode number was written by Gregg Hurwitz? ### Answer: SELECT no FROM table_24938621_3 WHERE written_by = "Gregg Hurwitz"