Here is a diverse set of brainteasers and problems that will sharpen your analytical skills and test your cognitive abilities from patterns and sequencing to analogies and more. A must for thinking teenagers who are getting ready to crack competitive examinations. So what are you waiting for? Go ahead, crack it again. A Children's Bookshelf Selection: Each month our editor's pick the best books for children and young adults by age to be a part of the children's bookshelf. These are editorial recommendations made by our team of experts. Our monthly reading list includes a mix of bestsellers and top new releases and evergreen books that will help enhance a child's reading life.