In this Klein bottle universe, named for Felix Klein, 
where should <i>o</i> go to prevent <i>x</i> from winning on the next move?
<br><img src="tictacklein.jpg" width=150>
<br>a) top left square
<br>b) middle square 
<br>c) bottom left square
<br>d) <i>x</i> has no chance of winning so <i>o</i> can go anywhere 
<br>e) <i>x</i> will can win no matter where <i>o</i> goes

<br><br><br><br>
<img src="tictackl2.jpg" width=150>
<br><br>
<img src="tictackl3.jpg" width=150>

<br><br><br><br>
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?

<br>a) An Amoeba
<br>b) Dr. Sarah
<br>c) Michael Jordan
<br>d) All of the above
<br>e) None of the above