Why does an integer pointer not store the address of a float variable?

Question

What is the point of declaring Pointer of different types (eg. integer,float,char) as we all know pointer takes 4 bytes of space regardless which type of pointer it is and only contains address?

Answer 1

You're getting undefined behaviour, because you're passing the wrong types to printf. When you tell it to expect a float, it actually expects a double - but you pass an int.
As a result it prints the wrong information, because printf relies entirely on the format string to access the arguments you pass it.