An unexpected encounter between a swimmer and an octopus can look frightening, especially when the animal’s arms spread across a person’s body. Yet a dramatic appearance does…

You may have noticed a greenish or gray ring around the yolk of a hard-boiled egg and wondered whether something went wrong. In most cases, there is…

At first glance, this family puzzle looks like a straightforward counting exercise. Mr. and Mrs. Wang have three sons, giving us five people. Each son has one…

Putting salt in the toilet may sound like an unusual cleaning trick, but there is a simple reason some people try it. Ordinary salt can provide mild…

My neighbor Denise often borrowed my appliances and returned them in less-than-perfect condition, but I usually overlooked the small problems. That changed when she borrowed my mother’s…

During hot summer months, you may notice a small bowl of vinegar sitting near a window. While it might seem like an unusual household habit, vinegar can…