Question

reddle 1.What gets sharper the more you use it who I am?​

Answer 1

Answer:

Brain is the the thing which gets sharp the more we use it

Answer 2

Answer:

BRAIN

Explanation:

It gets sharper when we use it more, here sharper does not mean to be sharp which the knife needs to be, here sharper implies to make your brain to run more effectively. And yes if you use your mind more it will become sharp.