Thanks for the many messages I received for Tutu and his family, truly appreciate that!
This was an already posted puzzle, so not many people responded. I got two more correct answers from Mohit Khare and Sunil Dhar – well done both, this was not an easy problem!
The answer is 4.
Instead of reposting the solution, I am attaching the link to the answer posted previously.
I hope you all enjoyed the puzzle!