Daily Riddle

Riddle #1- Pull me out and and scratch my head. I once was red now I'm black instead. What am I?

Riddle #2- I am full of wisdom and knowledge. I get what you want in a blink of an eye. I am known to man as full of endless wisdom. What am I?

Riddle #3- A man walked over a bridge yet he walked under the bridge. How can this be?