1: winrar kya hai kaise download hota hai kya procedure hota hai iska or kya faidey hain?

2:youtube ki video download karney ke liye konsa software hota hai jaise youtube kholne ke baad wo us hi video ke uppar download ka option deta hai?

3:torrent kaise use kartey hain jaise bari files ke liye jaise corel draw download karne ke liye?

thanks