If you are from monkey why is it there are still monkey till now?

Answer 1

We aren't actually directly descended from monkeys, they're just cousins in evolutionary terms, as we are part of the same evolutionary chain. We are merely the most recent major evolutionary step in the primate family, so much so that we are barely a part of the family anymore, but we are more closely related to apes then we are monkeys. The difference betweens apes and monkeys generally being apes don't have tails, monkeys do, albeit we do have the base for a tailbone still.