The puzzle features dozens of ripe strawberries, topped with green leaves, which all look the same at first glance. But take a closer look one of them does not have a stem. The challenge is to ...

Harvest your strawberries gently, either plucking or cutting the stem less than half an inch above the berry.

College of Science, Technology, Engineering and Mathematics (STEM) for the next Science on Tap, beginning at 5:30 p.m.