McCork and Hucklebuck attempt to break the record for the world's biggest ice cream cone in the Brain Freeze studio and Dr Knowles answers the question 'Can ice cubes sink in water?' What can possibly go wrong?

Dr Knowles and Professor McCork ask the question 'Are we all related?' Meanwhile, off air, Colin discovers an old treasure chest owned by his great great great great uncle Percy. Will the Brain Freeze floor manager embrace his swashbuckling family tradition as a salty sea dog?

In this time zone special, Dr Knowles is out in Mongolia and Professor McCork joins from Rio de Janeiro to ask the BIG question 'Why does the Earth spin on its axis?' Back in Brain Freeze HQ, Colin attempts to ready Ms Hucklebuck to present the show for the very first time but will she be able to rise to the challenge?