Question
According to the Talmud in Masechet Pesachim, there is a mitzvah to drink wine on Yom Tov for Simchah Yom Tov. My question is, can grape juice substitute for wine on Yom Tov?

Question
According to Halacha, if a Jew eats meat, do they have to wait after eating meat to consume whey, or do they merely have to finish eating, wash their mouth, and drink water? Are the rules for whey different when it comes to waiting after meat relative to milk or no?

Question
According to Leviticus 7:24 forbidden fats from non Shech’ted animals may be used for any purpose but eating. Therefor is it permissible to cook them with dairy and/or sell them mixed with dairy? Or is that still issur hanaah despite this Passuk saying it can be used for non eating purposes?