Actually 0/0 is undefined because there is no logical way to define it. In ordinary mathematics, you cannot divide by zero. The limit of x/x as x approaches 0 exists and equals 1 so you might be...
Zero. This is in theory only because any number to the power of zero is 1, except for 0. But if you start with zero (nothing), if you half it, double it or multiply by any number you still have 0 or...