Turn me on my side and I am everything. Cut me in half and I am nothing. What am I?

I can be flipped and broken but I never move. I can be closed, and opened, and sometimes removed. I am sealed by hands. What am I?

I have numbers on my face but can't find 13 any place. What am i?

I am a bird, I am a fruit and I am a person. What am I?

I am the sweetest and most romantic fruit. What am I?