Oh those riddles

What question can you never answer yes to?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Where does today come before yesterday?

What two things can you never have for breakfast?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

What goes up but never comes down?

What two things can you never have for breakfast?

A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

The more of this there is, the less you see. What is it?

What is full of holes but still holds water?