Why is it easier to punch a hole in a piece of paper with a sharp needle than with a blunt pencil?

For the same force, the needle applies greater pressure on the paper

Explanation

Pressure is the force exerted on unit area of a surface. It is given by the formula P = F / A where F is the force exerted and A is the total area on which the force is exerted. So the same force applied on a smaller area results in greater pressure.