Metric vs. other measurement systems - chart

[marksbug]

I have many stones in my yard,I doubt any weigh 14 pounds or 6.35 kg's. what Im wondering is how many pounds does a stone cost over there?? and how hard can you pound on it?can you pound on it while your stoned? or do you stone it before you pound it? how many pebbles are in a stone?? how much did pebbles flint stone cost?and what about that blarney stone?? where / when does it come into the equation?? all this thinking is making my head pound