Telegram More ways

Can we send from one chat number to another chat number through telegram?
Or can we send from my bot to another channel of my friends?

You should be able to send from one chat number(your number) to others. You cannot message anything to others channel, even if its your personal message nor via your bot, unless you are a admin. You can do that in telegram groups though.
you can refer to telegram faq also for more understanding.

How can I send from one number to another number?

Dont know much…try this :