Ships in those days depended on sails to get around. That being said, they'd usually take anywhere from 8 to 12 weeks.
1) The word "vassal" was mostly used for the knights who were responsible for providing the military defense for the king - the answer is "perform military service"
2) Magna Carta is known as the first document to limit the power of the king ! (3rd option)
3) this was the Holy Roman Empire, which was actually an association of independent states.
Many people starved during the first winter because most people wanted to look for gold instead of working on the settlement