Most Helpful Girl
i doubt it
Most Helpful Guy
The crayon: trick box. Open one end and see a bunch of colors. Open the other and only have red crayons. That's why he didn't allow the judge to look. He flipped the box over.
The card: classic force. Basic magician trick.
Rubix cube: put cube in the box. Box is lined with a kind of "cover" made to look like a Rubix cube with the predicted pattern.
Book: classic force. The word on the selected page was already circled. Force the page similar to how you force a card.
All the tricks are based off of what the child said in the video. He had years to plan how to force all the outcomes he wanted.