Add a line to make it true

Question: How can you make the following true by adding a single line: .9 = 1.

Note: ≠ is not the answer.

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?

Question: What asks but never answers?