Answer:
It slows the pace of the poem down to purposefully confuse the reader. It builds up anticipation about what will happen when the highwayman arrives. It helps to establish the setting of the town and the countryside.
Answer:
Too is an adverb that can mean “excessively” or “also.” Just to be clear: two is pronounced the same as to and too, but it can't be used instead of either of them because it's a number.
1 , 3 and 4 hope this helps