Most have 3 chambered hearts.
Not sure how many a rectagular prism douse have but a rectangular prism does have 8 vertices.
4 sides...
Five.
2 and 2 arms
6
A pentagon has 5 sides.
Xenon does have 54 protons.
Exactly 21 times
7 times
An hexagon is a polygon that has 6 sides
it has only two air bags
the quran has 114 chapters in total