Yes. In most cases a person will continue to grow until their late teens or early twenties.
No
When you feel you're still growing, you might grow taller. But if you're length has been stable the last half a year/ year than the chance that you will still grow taller is very unlikely. But if you are afraid that you will still increase in length, you can always go to a doctor. He might subscribe some growth-blockers.
At 23 a person has finished growing and will not get taller.
Under normal circumstances, yes.
I don't think you can make yourself taller. I am 20 and only 5' 2!
Yes, but probably not by much.
Based on background, it is unlikely that the girl will grow much taller.
It would be extremely unusual to be that tall at that age.
Sorry, but you can't do that. He will have his grow spurt eventually and he will grow. I wouldn't rush you're child.
Yes, it is simply waiting and eating a proper diet.
There isn't anything you can do to force your body to grow. It will do it on its own schedule.
== == Yes males grow until their 21-24. You can also do regular swimming which will show significant change in your height.