What is a vertical passage sunk into the ground for mining called?

What is the partial or total loss of memory called? What do you call a being in mythology who is partly divine and partly human? "A partridge in a pear tree" is a gift in which Christmas carol? A pas de trois is a dance for how many people? A patent for the first successfully manufactured electric razor was issued to which man in November 1928? A patient who told a Frankfurt doctor "I have lost myself" was the basis for his 1906 lecture. Who was the doctor? What is a paved outdoor area next to a house called? Which PBS home renovation series was hosted by Bob Vila from 1979 to 1989?