However, as avid puzzlers ourselves, we put together a list focuses on what we've found as the most challenging yet rewarding puzzles with adults in mind, and even included some 3D gems in the mix.

My toddler has a similar kit and loves to give all of us regular check ups as well as all his stuffed animals. It's so cute ...

Create your own real-life fairytale with this levitating planter, dazzling suncatcher, and adorable fairy garden kit. 🧚 View Entire Post › ...

Faces - A face is a flat surface on a 3D shape. For example a cube has 6 faces. Edges - An edge is where two faces meet. For example a cube has 12 edges. Vertices - A vertex is a corner where ...

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All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Whether it's a romantic ...

Examining what it means to make money by selling the bereaved on an illusion, the film feels like something of a warning. By Alissa Wilkinson Mel Gibson directs an uneven action film with Mark ...

Nature asked the world’s largest health-research funders what they are doing to study a life stage experienced by half of humanity. Here is what some of them told us.