What am I?

You use a knife to slice my head and weep beside me when I am dead. What am I?

related riddles

I have a birthplace but was never born. I have a mouth but can't speak and I run but have no legs. What am I?

I can swim but never get wet. I can run but never get tired. I follow you everywhere but never say a word. What am I?

I am a desire to munch. What am I?