Good Riddles

Question: I never was. Am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all who live and breathe. What am I ?

Question: What do you call a fly without wings?

Question: 28th Feb, 2015 Josh went to rob a bank. He threatened to kill the cashier if he didn't open the vault. The cashier told him the vault is not opened with keys but with a password. You can't kill me since I'm the only one who knows the password and everyday the password is different. Josh shot the cashier, entered the password, opened the vault and stole all the money. What is the password?

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

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.