Best hard riddles with simple answers

If I have it, I don't share it. If I share it, I don't have it. What is it?

Imagine you are in a sinking rowboat surrounded by sharks. How would you survive?

I am a fruit. Remove my first letter, it's a crime. Remove my first and last letter, it's a kind of music. What do you think am I?

There was a plane crash every single person died. Who survived?

Poke your fingers in my eyes and I will open wide my jaws. Linen cloth, quills, or paper, I will devour them all. What am I?

I have four legs but no tail. Usually I am heard only at night. What am I?

What am I?

What do you get when you cross a chicken and a chihuahua?

I take what you receive and surrender it all by waving my flag. What am I?

Did you hear about the Italian chef with a terminal illness?