Hacking with out internet

Hi is it possible to hack a lappy with out net connection or spy the documents?

 

I have no idea about the hacking. To be frank some one is uploading my ..... videos and when i try to trace them it shows the same ip as on my laplop. Is it possible to have two machine with same ip. If so how can i stop

 

hoow to hack... I dont have any idea about it.