[TOMT] [tv show] Australian show (live action) about a family.

A plot of one of the episodes was 2 brothers retracing their steps since they made a riddle on how to find something, and in another one the mum was complaning about the fact that they ran out of sugar that she was going to use to try and find the recipe for a secret recipe of cookies, and the gardener dad said that he used all of it to make his lemonade taste sweet