9 handed tourney table. It's early with all stacks being about 100 BB.
UTG raises to 3BB. All others fold to Hero in the button with JJ.
Q1: fold, call, or raise? And why?
Q2: still with JJ in this position, if UTG had limped, how does this change the situation?
Q3: Still with JJ, if there were no limps but instead of UTG making the raise, but the raise had come from MP or LP, how would that change things?
Q4: Instead of JJ, we have QQ or TT, how does that change the original answer?
Thanks!