I am looking to invest 0.10 bitcoin in zooo.cc. Can someone give his opinion on whether it is a safe investment. I don't find any negative reviews about them on google but still i find it hard to believe that they can double my money in 20 days.
As what you said that you can't believe that they can double your money in just 20 days, then it's enough already to convince you to avoid spending your time there, this sites will become scam later. And @ASHLIUSZ is right, legit investment sites don't have like this rate, instead you can earn lesser but you can assure that your coins are safe with those sites and I'm referring those gambling sites that accepts investments.