is it possible to earn 2 dollar within two hours

yes and sometimes you can earn even more. I have seen tasks here for 4 dollars too.

What writing tasks are you referring to?

When something comes up saying 'write 4 paragraphs on a specific topic' - they provide the key words, you research by googling for the product, and then type up some bumff using those keywords. I love the medical ones - last week there was one on diabetes lancets. I used to work in diabetes research so it was right up my alleyway. Then I did one on baby shoes - lots of synonyms for the word 'cute' there! It's helped me with my regular freelancing work, too. Until I started doing MyLot tasks, I'd never considered taking on a job asking for 8 articles on pink hair irons! I did it, and got paid $35 - that was at getafreelancer. I'd been a member there for months, but it took MyLot to give me the courage to bid for something I knew nothing about.