I'm not avoiding any question at all - I am most happy to give you the logic behind Islam's teachings. I first need to correct some misunderstandings you have which seem to stem from your confusion over what God says in the Bible.
As I said before, I'll get to your misunderstandings after you've clarified your logic. You've talked about Moses' Tent (which is weird) but haven't answered the question about whether you are still unclean when you touch a chair that a lady has sat on (who is having her period).
So - without talking about tents - can you give me your logic for either believing chairs make you unclean, or whether and when God changed His mind about this teaching (that you are unclean if you touch a chair).
As we've seen, you've got quite a few illogical beliefs. Let's clear up whether this is yet another one of them.
(I promise you, I'll give you the proper Islamic teachings - again - and show they are logical. Indeed, I'll just quote what I said last time you brought up the subject, as it appears your memory is going).