You can only do 20 TI a Week with an addition of 5 TI with a level 5 Friendship level player in the team. So that makes 25 a week.

So you can technically finish all TI by Thurs.
Monday 5 Normal + 5 Friendship = 10
Tuesday 5 Normal = 5
Wednesday 5 Normal = 5
Thursday 5 Normal = 5
Which adds to the total of 25 for the week. So on Friday, Saturday and Sunday, it will show as 0/0 even though you didn't do any TI.

*Remember, you can still do TI even if its 0/0 to finish your daily/monthly mission.