Is one allowed to buy a lottery ticket if the lottery will be held on shabbos? Is it a problem of possibly making money on shabbos even though his chances are slim?
If you leave your store open on shabbos for your non-jewish or non-observant workers to run, and you don't make any money from it (give all profits to workers) is that ok?
Shopping is forbidden on Yom Tov, so there's also presumably a prohibition on it on Chol Hamoed. What are the parameters within which it's permitted on Chol Hamoed?
I know at a Jewish wedding, just before the Ketubah is signed, the groom picks up a handkerchief in front of everyone. I remember this has something to do with "kinyan chalifin"; could someone please ...