Quick Challenge Answer: Who Made God?
Who Made God is the challenge often offered to theists when they assert that that the universe must have a cause because it came into being. This is standard Big Bang cosmology. If, the claim goes, everything must have a cause, then what caused God?
Understand that science and theists are both looking for the “uncaused first cause” of the universe. There are only two possibilities. Either everything has always existed, or everything came into being at some point in the past. If the universe came into being, something must have caused it. Whatever that thing is, it must be spaceless, timeless and immaterial (these are the things that were created, therefore they could not create themselves). Whatever the cause for this is, it is by definition uncaused.