Add punctuation: 21km from Dublin Centre
A: 2.1km from Dublin Centre

Add punctuation: There is also evidence that highfibre grains like wheat bran can reduce cancer risk Fibre has a beneficial effect in preventing colon cancer says David Jenkins a fibre expert at the University of Toronto And pasta rice and other grains can replace the animal foods red meat in particular that may increase the risks of some cancers
A: There is also evidence that high-fibre grains like wheat bran can reduce cancer risk. "Fibre has a beneficial effect in preventing colon cancer," says David Jenkins, a fibre expert at the University of Toronto. And pasta, rice and other grains can replace the animal foods - red meat, in particular - that may increase the risks of some cancers.

Add punctuation: The world is a dangerous place not because of those who do evil but because of those who look on and do nothing
A:
"The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing."