Misc: Which pop group's only U.K. chart entry, "Sugar Sugar" got to No. 1 in 1969?

Questions

What type of food is tortellini?

Who wrote and directed the 1977 film 'Annie Hall'?

What would be the defining characteristic of a narcissistic person?

What is the name for the part of the bone that fits into a socket to form hip and shoulder joints?

What represent the body and blood of Christ in the service of Holy Communion?