The sugya of Rabi Yochanan explaining Rabi Eliezer's reasoning appears only in Menachos, not in Zevachim.

The Gemara takes a detour to examine the Tosefta from which רב שייא had brought proof to Rav Ashi.

In what may be his only appearance in Shas, רב שייא swoops in with a stunning proof from Tosefta Pesachim.

We abrupty find ourselves thrust into a sugya examining issues of שפיכת שיריים.

Conceptual framework of פסול מהו שיעשה שיריים.

Understanding why this fundamental discussion between Reish Lakish and Rabi Yochanan is attached to our Mishnah.

A fundamental issue buried in foreign territory.

A dispute between Abayei and Rava concerning the issur of eating kodesh which is tamei ends up in Zevachim despite belonging in Makkos.

Navigating the potentially confusing landscape of the Gemara's presentation

The need to notice the Gemara's abrupt shift of focus, as well as to construct a coherent picture from the pieces presented by the Gemara.