1)  Does he use an oxygen tank?
a) No
b) Yes
c) Sometimes
2)  Does he throw a spear?
a) Yes, by hand
b) Sometimes
c) No, he uses a spear gun
3)  What propels the spear?
a) Air pressure
b) Rubber
c) A metal spring
4)  What sometimes follows him?
a) Sharks
b) Whales
c) Eels
5)  What do sharks remind him of?
a) Dolphins
b) People
c) Dogs