Brain teaser: Can you solve this simple maths test ?

A challenging brain teaser has sparked a viral craze online, testing math and logic skills. Discover the solution to the tricky puzzle about the number of kids in the class. Brain teasers are effective in boosting memory and recall abilities. Solving puzzles and riddles activates different parts of the brain associated with memory formation and retrieval, thereby enhancing cognitive function. This can be particularly beneficial for older adults in maintaining mental acuity and reducing the risk