Mountains are tallest true or false

Question: What's higher than mountains, Smaller than trees?

Question: What tastes better than it smells?

Question: What goes in the water black and comes out red?

Question: What asks but never answers?

Question: I have 6 faces and 21 eyes, but can't see a thing. What am I?

Question: When you're given one, you'll have either two or none?