A maths professor challenges students with a number puzzle sequence: 3, 8, 15, 24, 35, ?. Can you find the mysterious number?

Some of us might solve crossword puzzles or Sudoko games to exercise our minds, but [Nathan Nichols] plays with exotic number systems to keep the brain cells in shape. He wrote the Hanoi C99 ...

With over 55 million people worldwide diagnosed with dementia in 2020, with that number expected to double ... with more than thirty-five different brain games. It’s free with an in-app purchase ...