All five answers to the questions below have something in common. Can you figure it out?

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Anyone who has ever played ‘Tetris’ knows how addictive the ’80s video game can be. Scientists say the Tetris Effect may even have psychological benefits for people coping with PTSD.
Researchers have created a sensor that monitors plant stress, which could one day be a game-changer for anyone with a black thumb.
From home and auto insurance to free hearing aids, there’s a lot you can squeeze out of your Costco membership.
How did daytime dramas like “Guiding Light” and “General Hospital” become known as “soap operas”? It's all thanks to commercials.
Each year, Gallup’s World Happiness Report ranks nations based on support systems, social trust, generosity, and more.
Scientists at the University of St. Andrews found that seals can detect blood oxygen levels, allowing them to plan dives and avoid drowning.
Cornell’s SpellRing could change the ASL translation game.
From Chesapeake, Virginia, to Anchorage, Alaska, these cities offer plenty of parkland.
In the 19th century, 'inside baseball' only had one meaning—here's how it came to be.
What happens when nearly 900 dachshunds gather in one place? A world record, of course.
History is teeming with unlikely heroes—these ones just happen to have feathers and fur.
Which U.S. national parks saw the most visitors in 2024? Super-popular spots included Yosemite, Acadia, and Glacier National Park.