Most of us stay online for several hours daily, and surprisingly we love to spend most of our time on Facebook, Instagram, Whatsapp and other social media websites. 

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Have you ever realized, that staying online is not an smart idea but it makes you dump, jealous and anxious according to a survey.Today we will be talking about some of the most useful website which will make you smarter and intelligent.

Read moreTop 10 websites you must know about-When you are getting bored