The more you take away, the larger I get. What am I?

I am the center of every good party at your home You always come back to me when you're hungry When you're bored you may look inside my cabinets and browse When you're sad I've got ice cream for you When you're sick I give you tea and soup I'm like a friend but I am not a person What am I?

I wear a golden crown and hold the highest rank, yet one trapped step means my entire kingdom falls. What am I?

I'm a word you can use when you can't remember the name of the thing you are thinking about. Oh, and I'm also a candy bar. What am I?

I don’t say cheese, but I make you say it, I catch your big smile in a tiny minute. Click, flash, and later you see what I caught What am I that keeps your face in a spot?