I totally agree with you in regards of investing in ICO but their are some ICO which are really genuine but the main thing is you have to wait long just like Bitcoin when 2 or 3 yrs back it was nothing and today it is everything. So ICO are good but it is upto us to pick the right one and do some trading and try to take out the invested bitcoins.
Yes some ICOs proved very profitable, but to me I think in present time if you simple hold the 20 bitcoin you can make good profit more than anything else, therefore to me holding bitcoin for a long term can give you also a good profit. You do not need to take risk with devs of altcoins and their ICOs to invest your bitcoins.
But the OP requires or ask you how you will earn 1 BTC out of 20 BTC fund. I don't think holding 20 bitcoin will gain 1 BTC everyday. It is also hard to say that you will get an average of 1 BTC everyday with your ICO profit after it is listed in the exchange and you need to encash. If the ICO runs for 30 days, you need a profit of 150% of your investment.
Anyway, i think it will be hard to have a daily profit of 5%, but it is achievable since assuming I am a professional trader. Just need to trade strong coins like ETH, Lisk, monero etc. and get along with the dance of their prices.