1. The fig tree - so Jesus said some words to the fig tree and it withered and died - do you know many ordinary humans that can do that? And besides, it was a lesson in faith to the disciples.

2. Born in Sin - Jesus's fertilized egg was implanted in Mary's womb by an Angel of God. The same thing happens today when a Doctor implants a fertilised egg into a woman - maybe the natural mother or even a surrogate mother. Only difference is, in Jesus's case the egg and sperm were perfect ie not from any human who bore the sin of Adam, but directly from God. Mary was a vehicle to take that foetus to maturity - nothing more.

Believers will have no problem understanding this since we know God created all original life and has the knowledge and technology to create a small thing like a fertilized human egg.

Of course, non-believers will scoff and make a huge joke of the whole matter, but that is to be expected.