Can anybody from any part of the world participate in this? I mean I am from Africa, how can I get the prize if by chance I emerge a winner?
the price is HYN Tokens, which you should also get into your wallet in Africa. Since you're on the Altcoin forum here, I think you've already got tokens. So that should not be a problem with this raffle.
I wish you luck!
The only restriction I found, is for US citizens. According to this, you can participate in the T-shirt poll. Hopefully you win 50 HNY Token.