لك and عندك
What is the difference between لك and عندك,
عندي, لي and so on? I know it means you have, I have but what is the difference?

Question

Answer

عند = at
لــ = for

The ك or ـك denotes "you"
that would make the above as:
1. at you = around/with/have you
2. for you = to/for you

Answer

Like you said, they both mean "You have", but the lit. translation will be a bit different :

عِنْدَكَ = in your possession 
لَكَ = for you

Answer

لك  is for you  .... exampls : This shoe is for you.  and عندك is you have i think that   ....  do you have Mohammed at home ? and other  ... Do You Have Any Doubt … !? 
 I hope this helps you . :)

Answer

Both are equal in the meaning but must connected with a connected pronoun.
عندك = لك  You have