Vanessa Hill, host of the excellent BrainCraft channel, invited Hank Green, Caitlin Hofmeister, and Jessi Castaneda from SciShow over to try their wits against four of the most reliably tricky logic puzzles out there. If you're absolutely obsessed with puzzles, riddles and trick questions, you may have heard some of these, but you'd have to be a huge nerd to have heard them all (nothing wrong with that). At the very least, watching these extremely brainy YouTube stars struggle will make you feel better if you get them wrong.