Misc: Which Scottish rocker styled himself "sensational" and once had a role in Hair?

Questions

the biological clock is also known as ?

the pinnacle trophy of the sport of badminton is known as the?

the game pelota vasca is also known as?

aussie rules, a game popular in australia, is also played in a similar form in ireland, known as?

who was the first man to achieve the grand slam of tennis, twice?