Answer:
Which button does not function when being pressed?
There is an ancient invention. Still used in some parts of the world today. That allows people to see through walls.
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
Break it and it is better, immediately set and harder to break again.
There is a creature of God whose body is hardΝΎ it does not wish to eat unless you strike its head.
If lightning strikes an orchestra who is the one most likely to get hit?