input question: How to cover up nail holes in the wall.

output answer: From the hardware store you will need spackling, fine grit sandpaper, a putty knife, and paint. Put a little spackling on the knife and apply it to the hole. Use the straight edge to scrape away any excess from the wall. Allow to harden and sand until smooth. Paint over it with a color that matches your walls.

input question: Learn how to do a proper stomach crunch.

output answer: Lie on your back with your knees bent and feet flat on the floor, hip-width apart, slowly contract your abdominals, bringing your shoulder blades 2 inches off the floor and you are done.

input question: To close a sliding door.

output answer:
Pull or push the door down the rail toward the wall.