No, this would be goaltending.
As long as they want.
NO
Yes. A defensive player can stay in the lane as long as they wish.
yes
No, that is considered a foul
Yes
All players in basketball play both offense and defense.
The basketball player's inability to make a layup showed how unskillful he was.
To properly take a charge in basketball, a defensive player must establish position in front of an offensive player who is driving towards the basket. The defensive player must have both feet set and be stationary before the offensive player makes contact. The defensive player must absorb the contact without moving or leaning into the offensive player. This results in a charging foul being called on the offensive player.
A BA in basketball is a blocked attempt. In other words, it is a shot that the player attempts that is subsequently blocked.
A helicopter in basketball is a type of dunk a basketball player may attempt.
Mike Kelly