In the animal-lovers logic puzzle, four kids are picking out unique pets, and you have to figure out which pet each child chose. Kids ages five to seven can solve this easy logic puzzle that ...

Easier logic puzzles for kids tend to have simpler setupsand therefore fewer possibilities to examine and eliminate. Harder logic puzzles for adults, however, are often deceptively short.

It apparently comes from an old children's magazine (we couldn't find out which one), and it's gone viral this week – as adults struggle to comprehend the logic puzzle that was made for kids. It ...