Good Riddles

Question: I am born through wrongful events, sometimes even despair. I show that deep down you care. Although I give you strength, I am but a flaw. I can even turn a man into a monster, a monster that even his own loved ones saw. What am I?

Question: Until I am measured, I am not known. Yet how you miss me, When I have flown What am I?

Question: What sound do porcupines make when they kiss?

Question: What force and strength cannot get through, I with a gentle touch can do, And many in the street would stand, Were I not a friend at hand.

Question: I live in the dark, I have no heart and I'm just like jelly, if you touch me I'll stung you. What am I