Mark 7 study questions

How had the pharisees and scribes laid aside the commandments of God? (v 9)

Why does Jesus go to Tyre and Sidon? (v 24) Does it link to any characters in the Old Testament?

Why does Jesus seem to imply he will not answer the request of the Syrophoenician woman if he intends to all along? (v 26)

Why does Jesus have to put his fingers in the ears and on the tongue of the deaf man? Does he have to or does he choose to? (v 33)