Can you make a triangle with only acute angles, and none of the sides is the same length? if no can you explain?

Yes you can
Hope this helps

Yes, I do think so. If you take a normal acute triangle such as an equilateral with all 60 degree sides, if you made one angle 70 degrees, and one 50, then that would still make 180 degrees, and fit. 

(Quick summary if that looks strange: 60 + 70 + 50 are all acute angles and none are the same!)
Hope i helped :)