This is pretty good.

Gabino "Book Fanatic" (New York) -
  

My son will be 9 this summer and loves brainteasers. This one kept him engaged and he was very eager to share with us what was in the book. I gave it to him during a trip out of state and he was in that book from cover to cover! It was definitely a lifesaver for me because keeping him entertained on a long trip isn't easy to do.

challangeLESS

The puzzles in this book seem to be intended for very young ages. The questions did not stimulate my mind and the explanations were not that clear. Elementary school students might enjoy this book, but if you're older I would recommend a different book with tougher questions.

Excellent Book for Young Children

This is another great book from the great Martin Gardner, who once wrote the Mathematics column in Scientific American. In this book, he is accompanied stated problems and interesting solutions can provide entertainment for hours.The puzzles are organized by categories. Gardner begins with a few pages of warm up problems, then proceeds into "word for word," a literary playground. He continues with a chapter utilizing Sinclair's pictures, then continues with tricky questions are teasers. The book finishes with science and math problems, more Sinclair in "Find the Mistakes," and finally logic puzzles. Overall, this book is 96 pages of fun!