I'm on the road this week. Save for a couple of brief layovers, I've been doing a lot of driving. In light of this, I was inspired to feature a puzzle that could be solved without pen and paper. It was while glancing at my hands (which were, at the time, wrapped around a steering wheel) that this classic brain teaser came to mind.
Source Gizmodo http://feeds.gawker.com/~r/gizmodo/full/~3/uEjhl2nM2K0/ready-you-can-solve-this-puzzle-by-counting-on-your-f-1697324615
