Why does it say "El Bavel"?
Radak: This is like Al Bavel. Also "El Eretz Kasdim" is like Al.
What is the difference between the Etzah of Hashem and His Machshavos?
Refer to 49:20:2:1.
What is the meaning of "Im Lo"?
Refer to 49:20:3:1-2.
What is the meaning of "Yischavum"?
Refer to 49:20:4:1-3.
Who are "Tze'irei ha'Tzon"?
Rashi citing Yuma 10a: This is Pras, the youngest of Yefes' sons (i.e. Tiras - Bereishis 10:2).
Radak: They are Yisrael. Even though Yisrael did not drag Bavel, rather, Madai u'Faras did, they were dragged due to Yisrael. It is as if Yisrael dragged them, for the punishment was due to them - "Nikmas Hashem Elokeinu" (28).
Bavel is the flock of the strong habitation. The lions will drag them. (Based on Malbim 49:20. - PF)
What is the meaning of "Im Lo Yasim Aleihem Naveh"?
Refer to 49:20:6:1-2.