Get two books.
Get someone to time you.
Balancing on one leg put the two books on your head, see how long you can balance both books for, without them falling or using your hands to hold them!
Submit your score via the Microsoft forms page- https://forms.office.com/Pages/ResponsePage.aspx?id=gslUYD0XnE2CnSSqmUfkEGxhgnxVTRVNiGyHjnw7TWxUQ1c1RkY0MEZVTjEwSlc3MlpRRTBVNjhaRS4u
Send a picture of your attempting the challenge – firstname.lastname@example.org
Get a family member to try also to earn your house more points.