Good Riddles

Question: What's strong enough to smash a ship but is still afraid of the light?

Question: The more you cut into me the bigger I grow, what am I?

Question: There are five fish in a fish tank. Two swim away, one swims towards the ocean, and two die. How many fish are left in the tank?

Question: It's a question you can ask all day long and get completely different answers although these answers could be correct. What question is it?

Question: What falls but never breaks, and breaks but never falls?