Logic games and puzzles are a great way to interact with people when you’re on the move or have a lot of time to kill. Lead with a tricky logic puzzle at the beginning of a road trip or a long hike and it will give kids something to work on all day.
Typically a group will play around with the problems in the puzzle like a Rubic’s cube – turn it over, set it down, pick it up later and keep working on it.
Brain Den has some classic logic games on their site. Also check the tricky puzzles on Math is Fun.