Um. I'm not sure whether both Wayne or KarjamP should get points (Taylor never specified what happens in the event that both members are correct), so I'll give Wayne the points since he answered first.
Anyway:
3: It is possible via EVs... but only pre-Generation V. Stats are recalculated after every battle whether a Pokémon levels up or not, so something like Speed +14 won't happen at level up.
4: Fire Fang is correct. Beat Up would also be correct, as it is considered a typeless attack in Generations II, III and IV.
Question 5:
If a Pokémon uses Soak on an opponent Pokémon, and another Pokémon uses Trick-or-Treat on the same Pokémon, what type would it be?
[1 point]
Question 6:
Name 18 Pokémon introduced in Generation VI with unique type combinations.
[9 points]
Taylor can ask Questions 7 and 8.