Only five nations are mentioned here, as opposed to the lands of seven nations that comprise Eretz Cana'an?
Rashi: This really incorporates all the seven nations 1 , since they are all included in "Cana'ani", and it includes one of them (which it lists elsewhere as "P'rizi") in "Cana'ani", since it did not have a name of its own 2
What does the Torah mean when it describes Eretz Cana'an as "flowing with milk and honey?
Rashi: Milk flowed from the goats and honey from dates and figs.
Having instructed us earlier (See 12:25) to perform the Avodah of Korban Pesach in Eretz Yisrael, why does the Toes see fit to repeat it here?
Rashi: The earlier Parshah tells us about the son who is a Rasha, whom one answers sharply because he precludes himself from the community, whereas this Parshah teaches us how to react to the she'Eino Yode'a Lish'ol 1 (as we will see in Pasuk 8).
By telling him words of Agadah, that will attract him to pay attention, thereby spreading the miracle (Rashi).