Busy with solutions

Before Marwan’s parents go on a trip,his Dad tells him that he can take anything he
needs- within reason- from Uncle Farid’s shop in the neighborhood and from Uncle Hassan’s shop at school without having to pay. Wil Marwan understand what his father means by” within reason”? and what is the secret of the amazing card?

Suddenly the cup slips from Sanjoob’s hand and the milk forms a big white pool on the floor. Sanjoob is mesmerized by the different formations spilt milk can form but when Papa Sanjoob tells him an old tale about how the culprit who
spills milk is usually caught, Sanjoob springs into action.