Can everybody earn bitcoin? I am a Bangladeshi. I know little about bitcoin and I have no credit card. Is it essential having bank account to earn bitcoin? How will bitcoin help me? How and where can I start earning bitcoin?
There are no requirements about your nationality, skills or need to have a credit card to use Bitcoin. The only major requirement is that you have a smart phone or computer and access to the internet. In terms of earning bitcoin, you may earn it any way you might earn Taka or United states dollars, however you might find few employers will pay you in bitcoin.

There are some services to earn small amounts of bitcoin for simple tasks. A quick search turned up coinworker, but it looks like there are other similar sites if you find that doesn't work.

Hope that answers your question Banda!