1)
On what grounds did Pharaoh reinstate the chief butler, and execute the chief baker?
1.
Targum Yonasan: Because he discovered that the butler was not involved in the plot to poison him.
1
2.
Riva; Gur Aryeh (to 40:1): It is not always possible to prevent a fly from entering a cup of wine, but a stone in the bread is due to negligence.
2