who was the man who impersonated a woman on the German team in the 1936 Olympics?

Answer 1

There wasn't. In the 1936 Olympics, Poland had an athlete by the name of Stanislawa (Stella Walsh) Walasiewicz.

During an unusually long career (over 20 years), won two Olympic medals and some 40 Amateur Athletic Union (AAU) championships and was credited with nearly a dozen world records in women's running and jumping events. While on a shopping trip in 1980, she was shot to death when she was caught in the crossfire of an attempted robbery; an autopsy subsequently revealed that she possessed both male and female sex organs.