How old was Bilam when he was killed?

 1)   33 - 34    yrs.  Sanhedrin 106b

2)   over 60   yrs.  Zevachim 116a  Da'as Zekeinim mi Ba'alei Tosfos (Shmos 1)

3)   over 140 yrs.  Sanhedrin 106a Da'as Zekeinim mi Ba'alei Tosfos (Shmos 1)

4)   over 210 yrs.  Sanhedrin 106b Rashi

5)   over 400 yrs.  Sanhedrin 105a

1) A Min asked R. Chanina How old Bilam was etc.

2) The Goyim consulted Bilam during Matan Torah. The D.Z m B.T. assumes

Bilam at that time was at least 20 yrs. old, plus the 40 yrs. in the Midbar.

3) Bilam was one of Paroh's advisors when Moishe was born. Bilam at that time was at

least 20 yrs. old plus 80(in Mitzrayim) plus 40 (in Midbar)

4)  Bilam was one of Paroh's advisors when the Bnei Yisrael went down to Mitzrayim

5) Bilam and Lavan were both the same person.

Machlokes Rishonim  a) if it was the same Bilam or one was his grandfather,

b) if the Midrashim  argue with each other.