Weed
Macbeth and lady Macbeth try to avoid suspicion by getting into their pajamas after committing the murder so people will think they were asleep all the time.
duncan
Lady Macbeth talked Macbeth into killing his cousin, King Duncan of Scotland, who was a guest in his house at the time.
The witches greeted Macbeth with chants of "All hail, Macbeth! hail to thee, Thane of Cawdor!" and "All hail, Macbeth! that shalt be king hereafter!" These prophecies fueled Macbeth's ambition and desire for power.
She rang a bell to notify Macbeth the coast was clear.
No, the witches are proclaiming and predicting that Macbeth will be king and they are praising Macbeth.
He is stunned, in shock. He says, "She should have died hereafter. There would have been a time for such a word." He is unable to deal with it and all he can say at this time is that he wished it had not happened when it did. :Later we get to see the devastating emptiness of Macbeth's life without his wife.
Macbeth. She said "Hail, Macbeth!" In fact all three witches say exactly the same thing.
Scone is not a person at all, it's the place where Macbeth is crowned king.
"All hail Macbeth, hail to thee, Thane of Glamis" - what he already is "All hail Macbeth, hail to thee, Thane of Cawdor" - who lives "All hail Macbeth, that shalt be King herafter" and for Banquo they said his children will be kings
Sunday Evening down at the pub
Lady Macbeth echoes the words of the witches when she says "All hail, Macbeth, that shalt be king hereafter!". This echoes the witches' prophecy that Macbeth will become king.