Fido, the dog is tied to tree with a ten foot length of rope. He wants to get to his doggie bowl, which is fifteen feet away. So Fido trots over and starts eating.
There are no tricks–the rope didn’t break and the tree didn’t bend. Nothing of that sort. So how did Fido do it?
Encourage your child to think out of box and let her/him remain with the puzzle for a while.