This title offers brain-bending puzzles to sharpen your logic skills in no time. It contains 60 perplexing brainteasers. It features a variety of puzzles from crosswords to math stumpers. Unlike most fitness regimes that take a while to start producing results, this mental workout packs in enough brain-bending puzzles to sharpen logic skills in no time. From math stumpers to mini-crosswords, these 60 perplexing brainteasers will challenge your intelligence.