Answer:
Within, I clean all that is bad and is old. I make juice thatβs the color of gold. Should I die, a filter machine would you need assembled to replace me and beans I resemble.
I'm not man's best friend, I'm their enemy, I can mark your end, yet you do not see me, I am very small, but very tough, If you have me, then you have it rough.
This is needed both for courage and hardcover books.
I have two hands but cannot clap
Sharp and long, flag of the world. What is it?
Written on with words of white, Has the color of the night, Is the teacher's best delight, And a student's daily fright