Test your tax knowledge with our quiz on nontaxable income. We've covered these points in our tax stories, so if you're a ...

Try your hand at our Kiplinger Medicare quiz. All the answers can be found in our Medicare articles so, if you're a regular reader, you'll have no trouble!

As staff shortages grow, a Munich startup is testing and training childlike AI companions designed to talk, remember and emotionally connect with the elderly — without ever losing patience.

The three similar words are merriment, laughter and hilarity—hopefully things you experience while working on this puzzle!