Misc.

does the Halacha’s prohibitio of Chadash apply to one of the five grains grown hydroponically or no?

According to the Halacha, do less do yibbum with a mentally incompetent woman who’s a sister in law after your brother dies

According to Halacha, if a pregnant woman divorces the biological father of her baby while pregnant, what is the baby’s last name? How would it be determined in the scenario she gets married to another man, and what about if she is still single when she gives birth? Citations please

Can Jews do kriah with secondary clothing like hats, ties, gloves etc.

Thanks, but you misunderstood, my question was about Mamzer eggs in a non Mamzer gestational mother, conceived normally. It matters as there is view that kids can have 2 moms, if 1 is a Mamzer and 1 is not would it pass from the egg mom if the gestational mom isn’t one

In Halacha, is there a requirement for a Jewish adult to do the redemption of revai with a coin, or is it permissible for them to give a coin to a gentile as shaliach to do it? They are not obligated against Orlah, but is the monetary redemption of Revai a mitzvah which requires a Jew who is obligated to do it or merely a monetary action which anyone can do?

According to Halacha, is it permissible for a Jewish woman who is a Mamzer to donate her eggs to help a non-Mamzer Jewish woman who is infertile? Or no, because Mamzerim are prohibited from “entering the congregation of Israel” would it be prohibited? If permissible, would the children be mamzerim or no?

Many Jews practice Shalom Zachar which is a Seudat Mitzvah for new born baby boys (the origin is Talmud saying Jews know the Torah in the womb but lose its knowledge after birth). My question is should they do it if a baby is born from Caesarean section? Or does it make no difference, unlike other aspects of Halacha where it would? The reason I ask is because of the Talmud’s use of the word “emergence” which in other Halacha contingent on childbirth is interpreted as natural birth.

Can a Kohen fulfill the mitzvah of blessing a Jew through Birkat kohanim if the Jew is hearing him through a phone?  

According to Halacha, Jews’ male first born donkeys, sheep, and cattle are consecrated (with some implications therein). My question is, if a gentile owns first born male sheep, cattle or donkeys, and then convert to Judaism, do they become consecrated? Sources please