The basics of how a toilet works haven’t changed much in the last 80+ years. After a flush, water fills the toilet tank, lifting a float that shuts off the water when it reaches a certain level.

But to repair a broken toilet, you need to understand how it works — and its workings are more complicated than what meets the eye. Toilets have no electrical components, no CPUs, and no circuit ...

Who should you expect to show up? This poser is hard to work through when we are only given the text. A Venn diagram provides a systematic way to visualize and solve it. Each statement precludes ...

They really are a flush above. A TikTokker recently went viral after demonstrating the true power that airplane toilets possess — showing how almost nothing in the sky-high lavatory is safe from ...

Callina Liang, Chris Sullivan, Eddy Maday and Lucy Liu in Presence. (Neon/Courtesy Everett Collection) ...