In this Klein bottle universe, named for Felix Klein, where should o go to prevent x from winning on the next move?

a) top left square
b) middle square
c) bottom left square
d) x has no chance of winning so o can go anywhere
e) x will can win no matter where o goes

If a rope is put snugly around the equator of the world, and then 20 meters more rope is added, with the rope floating concentrically, who could fit underneath?
a) An Amoeba
b) Dr. Sarah
c) Michael Jordan
d) All of the above
e) None of the above