Can a girl beat a boy in wrestling? ( If both have the same age and weight )

Yes, of course! I have seen it before, and also seen it many times in martial arts!

Some could some couldn’t.

Females and males should not compete againstbone another in sports at all.
Males will always have the advantage.

Yes it might be possible for a girl to beat a boy but that would be so rare. Males have many advanges to athletics over females

Age & weight are off little importance
Experience & skills are importance

Yes