Question

What do you think is the best solution of bullying?

Answer 1

stand up, be brave, don't temp the bully don't even notice what they say or do they will soon give up.

Answer 2

Ask to stop, then report it to a teacher. If you try to solve it yourself, YOU WILL get in trouble as well. 
Tell them to stop. 
If they don't, report to a teacher or supervisor.
I would also try to comfort the person being bullied if it is not you.