Why did Bil'am say B'no Be'or instead of 'ben Be'or'?
Rashi #1: It is synonymous with 'ben Be'or'. 1
Why did Bilam refer to himself as 'Gever'?
Ba'al ha'Turim: Because a. just as a rooster'
What is the meaning of "Shesum ha'Ayin"?
Rashi #2 and Ramban (both citing Targum Onkelos): It means that his eye was open ('he saw well'). 3
Ramban #2: He saw with prophecy. 4
Rashbam: He saw with a Divine Vision. 5
Targum Yonasan: 'There were revealed to him deep secrets that were hidden from other prophets'.
Rashi writes that one eye had fallen out of its socket, or he was blind in one eye (Nidah 31a). It says "va'Yisa Bil'am Es Einav" and "u'Geluy Einayim" (verses 2,4)!
R. Chaim Paltiel: Before he wanted to curse Yisrael, he saw with both eyes. 1 After he wanted to curse Yisrael, Hashem blinded one eye. Why did He not blind both? "Ha'Noge'a Bachem Noge'a b'Vavas Eino" (Zecharyah 2:12).
Verse 2 teaches that he saw with both eyes. He already wanted to curse Yisrael from when Balak's first men arrived
Rashi writes that Bil'am and Balak were greater than their fathers, like Manah ben Peras. What does this mean?
Mizrachi: Peras is half. The son was twice as great as his father.
Riva: Maneh is a 60th of a Peras; the son was 60 times greater.