Good Riddles

Question: What is that comes out of a man, has no hand and has no legs but can make a hole on the ground?

Question: Which city is the dangerous city in the world?

Question: If a man has 10 birds and he sells them for 80 chicks each, how many chicks does he have?

Question: I was always in the beginning of time but faded as time passed by. When people use me in a sentence they never forget to use good grammar. When people play dice with me they never win against me but I hate gambling. When people find me they always get a heart of a lion. Who am I?