Challenge yourself and help keep your mind sharp with these brain-bending games and puzzles. AARP is a nonprofit, nonpartisan organization that empowers people to choose how they live as they age. You ...

But are puzzles good for your brain? Ads for "brain game" apps and "braining training" online subscriptions would have you believe so. They make a lot of promises, from slowing cognitive decline ...

GCHQ has run its Christmas puzzle challenge for nearly a decade, but the latest card from the agency - which has multiple ...