Arcturus Publishing 
Lateral Thinking Puzzles [EPUB ebook] 

Traditional IQ books are for those with a Mensa mentality. This compilation is for ordinary people who want to enhance essential brain functions, such as concentration, memory, and creativity. Uniquely, this book focuses on left-brain and right-brain puzzles, giving a complete mental workout. You’ll love the variety of puzzle types: Odd One Out, In Sequence, Folding Cubes, and memory puzzles. All puzzles are fully explained with examples and solutions provided at the outset. No trick questions or puzzles with more than one answer.