this person wants to buy my car and send a shipment agent and pay per Paypal. I told him i do not do paypal. then the person offered to get the shipment agent a cashier check. What is if it is a fake check. do not know what to do. i have a funny feeling about this.

DON'T DO IT!!!  I got txts from this same number about my Craiglist ad.  This is definatley a scam!  This is telltale Craigslist scam...google Craigslist scam and you will see lots just like it.  These phone numbers are probably not even in the US.  Foreigners get these numbers and use them for texting and email, that's why they will never talk to you.  These scammers are American haters and they do it for no other reason than to stick it to us.

Someone from this number offered to buy my artwork(Craig's list)s for 2500.00. He said(texted) that he will have someone come and pick it up. All he needed was my PayPal link so he can transfer the funds then the movers will contact me after the transaction is complete.it sounded fishy because all he wanted to know wad if the art was in good condition, not size, framed, or anything else!?! Who is this guy?

You are wise to be wary. Here are 2 reports of paypay scams.
http://800notes.com/Phone.aspx/1-518-880-2038
http://blogs.theprovince.com/2012/07/18/micha ... -for-my-family/

Yeah this dude was trying to buy my car too, said it was a surprise for his cousin or something. Wanted my paypal account, luckily it didnt happen to me, thanks to this website!