Diya went to a shopping few days ago. If she only goes to shopping on friday and tomorrow is Sunday , how many days ago did she go to shopping ?

3 days 

Tomorrow is Friday i.e. today is Thursday 

code for Thursday= 4 & he goes to movie  on  Sunday & Sunday code is = 0 7

7 - 4 = 3 days before diya  went to shopping

Note:     

Code for      Mon – 1      Tues – 2      Wed – 3      Thurs – 4

                   Fri – 5         Sat ­­– 6        Sun – 0 / 7