Subject: Is it possible to convert decibel to watts and joules?

I hope someone will not direct to some other websites out there and will tell 
me that the answer to my question was there. I did search other websites and 
still couldn't find a DIRECT ANSWER TO MY QUESTION. My question is:

1.) Is it possible to convert decibel to watts?

2.) Is it possible to convert decibel to joules?

3.) Is it possible to create a billion decibel?

4.) What can a billion decibel do?

Please bear with me, just this once because I couldn't find A DIRECT ANSWER IN 
THE WEB BROWSER.

Re: Is it possible to convert decibel to watts and joules?