Apologies guys, these questions have probably been asked 50 times already but please respond if you have the answers:

Is the total supply of coins 21 billion coins?

If so, then why are only 6.3 billion coins available during the ICO?

What will happen to coins that remain unsold during the ICO phase?

Is there a plan to list the coin on exchanges right after the ICO? If so, then why since the ultimate purpose I guess is to encourage actual use of the coins and not speculation...