Blind People Don't Need Glasses by locksmith | Jan 27, 2015 | puzzles | 0 comments io9's weekly puzzle asks "Can you solve this puzzle blindfolded?" Sunday Puzzle #17: The Four-Glasses Puzzle - io9 Also good: New Puzzle App Dares You to Solve It Can You Solve This Logic Puzzle for Hong Kong Kindergarteners? This Star Trek-themed Puzzle is Highly Logical Only Two Living People Share These Secrets Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ