input question: How do you prepare rocks for painting?

output answer: Wash stones with soap and water in a bucket. Sand off any gritty parts with sandpaper if necessary. Prime stones with one or two coats of acrylic gesso or primer. You can smooth Elmer's wood filler over a rock's holes, dimples, or cracks to even it out before priming.

input question: To stop Plaster of Paris sticking to the mold.

output answer: Lubricate the mold you want to fill with Plaster of Paris with petroleum jelly.

input question: To pull a nail out of a board,

output answer:
place the claw end of the hammer under the head of the nail, the use the hammer as a lever to extract out of the board.