My average speed solving a Rubik's Cube is 40 or so seconds, my record is 22 seconds. If someone beats my average, they win.
Get an ice cube, take your shoes and socks off and try to hold the ice with your bare feet. See how long you can do it for.
First put a GOOD amount of salt on your arm. Put an ice cube on your arm over the salt and apply pressure. Hold it for at least 60 seconds. Good luck.