Ginger whingers – are redheads more sensitive to pain than brunettes. Taking down their particulars – is a job interview easier if the panel are naked. Indestructible objects – are they, really. Brainiac Boffin Jon Tickle really pushes his luck. Dog Whistles – If we can’t hear them, how do we know they work. If sports drinks get into your body faster, can they get out again quicker. After eating a kebab which drink is best to cool your mouth. Can you see the stars during the day if you’re at the bottom of a well. Modern art, the lazy man’s way. Explosives experts tackle the safe. And Fat v Thin continues.