Stretch everyday or do yoga everyday that normally helps.its hard at first but the more you do it the better it gets!!
Your question isn't very clear I cannot tell if you are talking about a simple human or myself. I f you are talking abouut a simmple human as flexible as they make them selves.
Work your left leg about twice as much as your right every day. :)
yes mercury is flexible
Scandium oxide: Sc2O3, possible uses as optical coatings.