Good Riddles

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: I can hurt and make people bleed when I'm on the dark side, but used in good ways and I can also help you. What am I?

Question: You are in Italy for a holiday. You book a hotel. You go a room. It has only a pair of socks, a light bulb, a TV, a remote, a bag and a phone. You search for the English Channel. How do you find it?

Question: What is the last thing you take off before going to sleep?