Paleolithic age 
the early man used sharp edged stones to make his tools and weapons.they used the flint stone(a hard grey colour stone).it could be easily choped or shaped.this stone was used to make knives,choppers,hand axes and flake implements.they used these to fell trees,kill animals.remove animal skin and dig the earth.
Neolithic age
tools and weapons of even the neolithic man were still made of stone.but these were far better than earlier ones.these were learnt to polish his tools and weapons.he also provided wooden handles to these.
hope it will help
Paleolithic [old stone age]: man used the tools made up of stone and hand axe was the first tool made by man
Neolithic [new stone age]: invention of wheel, cattle breeding,huts made up of grass and timber,cotton clothes, growth in trade is some info of this stone age