So true! And isn't it still a closed system if you include the universe? Then "greater than unity power out vs power in" is not broken?
What about the force in magnetic attraction; if you include the universe, is it not also a closed system? So wouldn't greater than unity be acceptable to our physical laws too then?
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To your question no.1:The heat output is divided by work done to get cop for heat pump. It is greater than unity. But if all external heat and work done is taken into account for input to the heat pump, the ratio would not exceed unity.
To question2:The magnet will not exhibit its magnetic properties unless another magnet or magnetic object is brought to it. For example no use of stator unless there is a rotor in a motor.