1. Is bitcoin and Bitgo are same ?
Bitcoin is a digital cryptocurrency, BitGo is a bitcoin wallet provider.
2. What is the diference of bitgo and bitcoin?
BitGo is just a wallet service where you store your bitcoins.
3. Can you send money from Bitcoin to Bitgo?
No. You use BitGo to store and send bitcoins.
4. Can you send money to paypal from Bitgo / Bitcoin?
Yes, you can exchange paypal for Bitcoins. But you may have to pay heavy fees for that.
5. How can i earn some BTC via making surveys?
Well, you can use faucets to start with Bitcoins. But AFAIK, they aren't survey sites that pay in Bitcoins.
6. How can i earn some few BTC via shortening a links like in ad.fly, except in CoinURL(scam?). Please suggest more on me.
I don't think you can make any money using any link shortening things. You can just use any skills of your to earn some bitcoins. Or level up here and just join any sign campaign to earn some bucks.
7. How can i mine on BitGO ?
You can mine bitcoins not BitGo.