Question
I have a version of the Bracha for Sefirot HaOmer. It has Hay Yud in place of Adonai. It has E-LoKEInu in place of EloHEInu. Because of these replacements, the paper does not have to be buried since it does not contain the name of G-d. Could you explain these two replacement words and why neither is the name of G-d? How does one pronounce Hay Yud? Are these replacement words only for writing purposes? Am I correct that I would still say Adonai and Eloheinu during my recitation? Thanks.

Question
Hi Rabbi, is it true that the Tetragrammaton was always pronounced until the time of the Massoretes who wrote it with vowels to hide the real pronunciation?

Question
I have a friend who is a Jehovah Witness, and we were discussing the name of God, and she said it was Jehovah, and when I said that we don't and can't really know His name, she said to look at Psalm 83, verse 18, so I did, and yes, it says there :"....whose name alone is JEHOVAH.....". I found this in the King James version. What can I say to my friend.