1)
What does the Torah mean when it writes that Balak and Bil'am brought bulls and rams on the Mizbe'ach?
1.
Ramban: It means that one of them Shechted the animals and the other one sprinkled the blood.
2.
Targum Onkelos: It means that they brought a bull and a ram on each of the seven Mizb'chos. 1
1
See also Ibn Ezra. Note, that throughout the current Parshah, Targum Yonasan translates ?Mizbe?ach? as ?Agora? ? a heathen altar.