Brain Tease was developed to help you explore an interesting reading phenomenon and to help you practice your short-term memory, focus and concentration skills.
Brain Tease II Brain Tease II was developed to help you have fun while exercising your brain. This application helps you improve your focus and concentration skills and is appropriate for all ages. In Version II, the "Very Hard" difficulty level was added.
Mathematical essays and recreations
For nearly a century, this sparkling classic has provided stimulating
hours of entertainment to the mathematically inclined. The problems
posed here often involve fundamental mathematical methods and notions,
but their chief appeal is their capacity to tease and delight. In these
pages you will find scores of 11 recreations" to amuse you and to
challenge your problem-solving facilities-often to the limit.
