Some Riddles -2

1 – I am made of plastic and metal. I haves a narrow tube  filled by ink. People use for writing. They put me in their pockets and bags. Guess , what  am I ?

2 -  I am one of the fruits .I am round. I have so many colours. Sometimes red, brown , dark red and yellow. People like to eat me, I am very sweet. What am I ?

3 – I am made of wood and my legs are made of metal. The classrooms are fuul of me .People sit on me. Guess, what am I ?