I was using the electric lawn mower and ran over the cord. I bought a new cord and the lawn mower wouldn't work as well as the hair dryer in one bathroom and the electric cat litter box in the 2nd bathroom. I tried resetting the circuit breakers but these things still did not come on. Is there a special reset button somewhere?

Yes, there is a GFI somewhere that is tripped. Look outside, in the garage, or in one of the bathrooms.