Can we see the surface of the moon using telescope?

Yes, you can see the surface of the Moon with a telescope or even with the naked eye.
No. There is no one on the Moon.

If is difficult to get a feel for how far away the Moon is or how large it is. In the night sky, it doesn't seem large or far. Even with a very large telescope you can't see something as small as a person on the Moon from Earth.