Indefinite Pronouns : Pronouns when refer to persons or things in a general way but in particular. then it is called Indefinite Pronouns. Look at the examples given below:
None of his poems are well known.
Some are born great.
Nobody was there to rescue the puppy.
Do good to others.
I will take you there one day.
Anybody can do it if they try.
Learn more about Pronoun and Types of Pronouns here.