Some outlets/lights work, some don't...

There are many things that can cause this to happen. Possible causes of this are the outlets/lights that work are on a separate circuit than those that do not work. It is also possible an outlet is bad. Some outlets and light switches wear out and simple replacement fixes the problem. You will want to check your electrical panel's breakers to ensure there are no tripped breakers. If all the breakers are reset and on and you still can not get power to the outlet and/or light, call a licensed electrician to help you further diagnose the problem.