Can you explain me how will it work? 
I mean suppose I am investing 0.05 
BTC here. So what are the chances of getting ROI and in how many days will it reach ROI?
And what percentage of shares will be distributed to each investor after a block is solved?
Also how about using that address 1FuL4PkG4MWGEh6JzUzu25CK67LVMyPbYX externally as worker by me on ck pool with my miners? What will be the subsidy then? 

This is more gambling, but it requires people to invest to pool money together to rent mining rigs. We then point the mining rigs at 
http://solo.ckpool.org/So say 10 people invest 0.05 each, we rent some rigs and find a block. The block will be divided equally among each person that has a share. If we get a block, then you ROI. If we do not get a block there is no return. This is like buying a lottery ticket, you may win, and you may not win.
Edit: Updated the OP, trying to work on creating a cleaner format for users.