The document discusses three problems related to shares and dividends. The first problem asks which investment is better: 10% dividend on Rs. 100 shares priced at Rs. 120, or 8% dividend on Rs. 100 shares priced at Rs. 72. The second problem involves calculating the change in annual income for a man who sold Rs. 10 shares paying 12% dividend and reinvested the proceeds. The third problem asks to calculate the share price at which a man must have bought shares for him to receive a 10% dividend when the company declared an 8% dividend. The document encourages practicing each problem to learn.