I have some q.s.
1. When we have ico token, What do we do with them? How to sell them into money?
2. Few campaigns have their own wallet? How to sell them in to money?
If you recieve tokens from ICO or bounty, its better to hold it first and wait for the better prices. You can sell to the exchanger where they want to list it. It depends on the project where they want to list there tokens, you must be updated in their telegram too.
If they have own wallets you can withdraw your tokens through your erc20 wallet like metamask or myetherwallet. The sell it in available exchanger.