Riddle #549

Question: It takes ten men ten hours to build a certain wall. How long does it take five men to build the same wall?

Question: Where do all the letters sleep?

Question: What tastes better than it smells?

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

Question: What loses its head in the morning and gets it back at night?

Question: What two things can you never eat for breakfast?