How to pass down the intellegence from one person to another?

So far I have read from book, Internet, magazine about how the knowledge in an individuals brain pass down to another person:

1. Mystery/religion: the knowledge stored in a person's previous life could have the possibility to pass down to the same person this life, that is the way to explain how come there are some people could be so incredibly good at academical
performance like a genius.

2 Fiction: like many kinds of science fiction or Kung-Fu fiction, human can using their super power to transmit the entire knowledge into their disciple's head. No matter that is memory chip or any formation of super natural Kung-Fu.

3. Psychiatry: Knowledge we learned in our life can be qualified and stored in DNA, which plays as a medium pass the genes to our descendants.