How exactly works cloud mining and is profitable start without any investment?

[HarryKPeters]

If you want to make a profit you have to take risk, in the form of an investment without investing, you are not likely to earn.
So no, you can't earn, without investing.

[talkbitcoin]

If you want to make a profit you have to take risk, in the form of an investment without investing, you are not likely to earn.
So no, you can't earn, without investing.

the risk that you take should be a calculated risk, not risking without thinking about the investment first.

in the case of cloudmining if you don't investigate before investing you are taking a dumb chance which will most probably cause you massively.