I see u chose an appropriate name...no offense
1. No, very few teams play 2 point guards in their starting lineup. Theres a point guard and a shooting guard. The point guard is usually about 6'2 or 6'3, handles the ball well and passes well. The shooting guard is usually 6'5 or 6'6, does some ball handling and passing but usually does more scoring then the point guard.
2. No but some do. The knicks for example have played both Lin and Baron Davis at the same time. The Clippers go with 2 point guards alot