Brilliant Brain Teaser Puzzles for Adults

When you want stronger muscles, you exercise. But what if you want a stronger brain? You challenge it! Brilliant Brain Teaser Puzzles for Adults is a jam-packed mental adventure that will feel like a complete "at-home metal acuity gym". Try boosting your powers of attention, concentration, mental agility, reasoning, memory, spatial awareness, and verbal intelligence—all while enjoying over 100 cha...