Once I was told that

> 
> I am the second cousin of my uncle's son? 
> 
> 
> 

Where the number before cousin doesn't depict the number of cousins, but rather it tells how close of a relation you are in with the person.

But how does this works out? What would be my real brother be to me if the relation is evaluated using the above method. And how many cousins could exist like that? can there be fourth/fifth...eighth cousin also?