1)
What is the significance of the bulls, the rams and the lambs of the Korban Musaf of Yom-Tov?
1
Rashi: As is written in Bereishis 18:7 "ve'El ha'Bakar Ratz Avraham."
2
In place of whom Avraham brought a ram on the Mizbe'ach.
3
As is written in Bereishis 30:40 "ve'ha'Kevasim Hifrid Ya'akov".
2)
Why does the Torah mention "Temimim" regarding Shabbos and Yom Tov, but not regarding Rosh Chodesh and Chol ha'Mo'ed?