George J. SummersBooksMind TeasersBrain Teasers (pocket puzzlers)Mind bafflersLogical Deduction PuzzlesClassic Logic PuzzlesMind teasers, logic puzzles & games of deductionMind puzzlersThe great book of mind teasers & mind puzzlersNew puzzles in logical deductionThe Great Book of Puzzles and TeasersTest your logicAuthor data: Open Library