Yes it can attack twice
no
Assuming the defending monster is also in attack position, both monsters will be destroyed.
Best place to watch any episodes of Yugioh, Yugioh GX, Yugioh 5D's, and Yugioh Zexal is at the website 4kidstv.com
Series after: yugioh 5'ds is yugioh Zexal.
Yes it can attack twice
Yes.
no
yes but the damage from the first attack doesnt add on to the second attack
Alexandrite Dragon is strongest.
You do.
Yes, this is what you normally do since you can't place them in face down attack position.
other yugioh cards monster the higher attack points the better
Assuming the defending monster is also in attack position, both monsters will be destroyed.
because he payed life of the effect of power bond 4000 cyber end dragon attack points
Not inherently, no, they get one single attack like most monsters. They can only attack twice if an effect is letting them do so.
Only if it has an effect that lets it attack more than once per turn, like Asura Priest does.