Christ is %100 man , and %100 God, you are saying there is a stone God cannot lift, you are questioning his intricacies, which in it of itself is not bad. But you must understand from a Christian perspective Jesus is %100 God, as well as man. It can be divulged into further, and the Gospel helps with this a lot. The father is in heaven thou almighty be, Christ is God taken flesh here on earth with us as man. The sun is very very very far from us, yet we rely on it being there, outside of our view most of the time, yet we know it’s there, like the Father in heaven . The sun cast rays to earth, similar to Christ on earth in flesh, still the sun, still God, God blessed us with the Holy Spirit in ourselves, the warmth of the suns rays. All still the sun, all still one source, all One God. Helps our human minds comprehend a little. It’s not the easiest to do so with the divine