Omnipotence paradox
The omnipotence paradox is a family of related paradoxes addressing the question of whether the existence of an omnipotent entity is logically possible. The paradox states that if a being can perform any action, then it should be able to create a task it is unable to perform, and hence, it cannot perform all actions. Yet, on the other hand, if it cannot create a task it is unable to perform, then there exists something it cannot do.
One version of the omnipotence paradox is the so-called paradox of the stone: "Could [an omnipotent being] create a stone so heavy that even that being could not lift it?" If so, then it seems that the being could cease to be omnipotent; if not, it seems that the being was not omnipotent to begin with.