Across Michigan, these coffee shops power mornings, workdays, and small pauses in between, becoming part of daily routines.

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

All our brain-teasers in one place. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. So, you're some kind of PC gaming expert, are you? Then ...