The Invention of Vita-Wonk / Dad and the Cat and the Tree — English STD 7 — Question

Mr. Willy Wonka was a strange man. He used to make all strange inventions. He had a subordinate called Charlie. There was an Oompa-Loompa volunteer on whom he used to carry out the testing of his inventions. He had an Inventing Room where he carried out all such mysterious works. He had earlier invented Wonka-Vite that had made people younger to an extent that their ages have gone into minus and they have become invisible. He then invented Vita-Wonk after collecting ancient items from across the world which could help people grow older.