There may be a loose neutral connection. That loose connection could be at another socket (receptacle) or in a switch box on the way (on a daisy chain) back to the breaker panel.
If the neutral has a loose connection, you can still get a shock if you touch both the hot wire or terminal and a grounded object.
(One morning on WRKO Radio) The tub's not clean! Let's remodel the bathroom.
(One afternoon on WRKO Radio) It's time for an oil change. I'm going to trade in the car for next year's model.