The usual response to "can God/Allah/whatever make a rock too heavy for it to lift" is "yes - and then lift it". Not saying it's a response that makes sense, just pointing out the common trap.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'