Matos-Masei 5778

Rashi on why parshat nedarim was addressed to the Nesi'im. What qualifies someone as an expert (יחיד מומחה) vis-a-vis annulling vows - genuine semicha (Ramban) or expertise (Rambam)?

The dispute between the Rambam and the Ramban vis-a-vis the mechanics of hatarat nedarim - is it adjudication or is it a new construct?

Bnei Gad & Bnei Reuven: Why isn't Moshe's complaint that they won't be observing the command to live in the Land of Israel? Is the East Bank part of the Land of Israel?