Rippled fingernails reveal secrets of possible disease

Moved into new place, and toilet seat underside has gross yellow/brown pee stains. Plastic/melamine feel. Any miracle cleaners or tricks before I replace whole seat? Thanks!

Math problem leaves the internet scratching their heads

I smiled when my son told me I wasn’t welcome for Christmas, got in my car, and drove home. Two days later, my phone showed eighteen missed calls. That’s when I knew something had gone terribly wrong.