A man goes to a shop to buy a parrot

Once a man goes to a shop to buy a parrot.

He asks the shop owner price of the Parrot:  Shop owner: Rs. 500

Customer: Why so costly?

Shop owner: He knows, Word, Excel and PowerPoint

Customer: What’s the price of this second Parrot? Shop owner: Rs. 1000

As it knows Word, Excel, PowerPoint and also Programming

Customer: How nice and what’s the price of this parrot, which is sleeping?

Shop owner: That’s for Rs. 5000 Customer: And what does it know?

Shop owner: That I don’t know, I haven’t seen him do anything, but the other two parrots call him boss.