10:50
3 Brain Teasers! ft. Physics Girl, Idea Channel & Joe Hanson
BrainCraft
9:19
4 Logic Riddles ft. SciShow!
6:36
4 Brain Teasers Asked in Job Interviews (ft. Space Time & Infinite Series!)
11:19
3 Quick Psychology Tests! ft. Steve Zaragoza, Bree Essrig & Elliott Morgan
3 Surprising Creativity Tests! feat. Vsauce
