Look at the birth certificate of Bincy.

What is the registration number of her certificate?

How many months does a year have$?$

Look at the calendar for the year $2018$ and circle the below mentioned dates in the calendar.

 $26\mathrm{th}$ January, $14\mathrm{th}$ November, $31\mathrm{st}$ December.

Is there something special about these dates$?$