No
Pitchers mound
to legally play only one person can be on the pitchers mound while the game is in play
There are certain things a pitcher may not do while within this circle. Fore example, when the umpire puts a new ball in play, some pitchers will spit on their hands and rub the ball up. Done outside this circle, it is legal; done inside this circle, it is illegal.
YES
Measure from the front edge of the pitching rubber to the back tip of home plate.
second
60'6"
Yes.
More than likely a pitcher's mound is removed by smoothing the dirt out with a bulldozer.
The mound allows pitchers a much better chance of pitching within the strike zone.
6" high.