Won't start just clicks

What is your question?

PLEASE HELP! My car won't start, it just clicks. I thought it was the battery and it still may be, but for now it was recharged and works fine, although it couldn't take a charge from another car. Now recharged the car still won't start, lights work. Is it the starter, ignition switch, cylenoid, or is the oil leaking from the engine the cause?