Welcome back! For Day 4 of the challenge, let’s do a short and fun activity based around a concept called cognitive reserve.

While these financial fads have gained attraction, are they actually worth the hype — and worth your time? Sometimes, yes: ...

Some math problems are designed in ways that reward simplicity rather than analytical depth. Research shows that highly ...

He solved one of the hardest problems in mathematics — a million-dollar challenge that had defeated everyone for decades.

A new math puzzle designed to challenge readers of all ages is coming to the Daily Press. David Genter, a puzzle developer ...