Good Riddles

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

Question: What is black white black white black white black white?

Question: You look east you look west your looking in both directions at the same time because there's a star you must reach. What are you actually doing?

Question: which is the longest word in the dictionary?

Question: Instruction manual, to and fro, if it’s wrong you'll still go - what is it?