How to do a set of tasks regarless of day boundary?

[gitraghuram]

I have got a list of tasks that I would like to do one after the other without regards to a day.
For example, I have got 3 tasks A,B,C. If I finish up to B today, I like to do C next day, and do A after that, then B, then C and so on regardless of whether it is within same day or next day or any other day. When I return to work on these any future day, I would like to continue where i left off.
I would like to see only one instance of these three task in my work list.
How do I set this up?