My nanny was sick and wouldn't be able to work for a week. Meanwhile i can't leave my work even though i can do it from home. I need an activity to keep my son busy while i'm working. What is the best activity that my 16 months old son can do and make him focus on it except watching videos?

Rope in someone to come visit you while your home, like your mum or sister or even your bestfriend if she's available! One thing I learnt is that they are usually more than happy to take over your mummy shift for a couple of hours so that will give you sometime to clear some work, eat and go to the toilet if you need to in peace