Misc: The Two Ronnies first appeared together in which TV series?

Questions

Every year, ---------- Americans injure themselves while trying out bizarre sexual positions.?

Every year, 11,000 Americans injure themselves while trying out ---------- sexual positions.?

In the U.S., there is, on average, ---------- sex change operations per day.?

More than half the American men surveyed in a recent poll admit to having sex with women they---------- .?

Sex burns 360 ---------- per hour.?