Sarah and Mike conclude that it is wednesday. But five minutes later it is already friday. How is that possible?

How many characters does the right answer to this question have?

A soccer team just became first in the national league. The players which were on the field just after the referee blew the final signal wanted to congratulate each other by shaking hands. Assuming that each player shook hands with every other player only once, how many time were the hands shaken in total? (There are of course 11 players in a soccer team)