Like some of the hardest math ... Printable Crossword Puzzles No matter the format, the key to solving any of these puzzles is to use a process of deduction. In harder logic puzzles for adults ...

(And adults, of course!) These math puzzles test your brain and critical-thinking skills and provide some constructive, educational fun. Get Reader’s Digest’s Read Up newsletter for more ...

The internet contains mathematical puzzles and illustrations that test our observational skills. Simple equations that adults struggle with, while elementary school students solve them in seconds ...

Easier logic puzzles for kids tend to have simpler setups—and therefore fewer possibilities to examine and eliminate. Harder logic puzzles for adults ... of the hardest math puzzles and math ...