We have reached the end of another puzzle contest. I would like to congratulate @doughtaker for being the first person to get all the correct answers. I think he set a record for fastest correct response so far for my contests. I will have to make the next contest more challenging. Here are the answers.
Answer 1: Will be explained in the results post, looks like most of you are getting the hang of this on. It will be different for the next contest.
Answer 2: Cow = 10, Dog = 3, Pig = 5 or Cow =10, Dog = 5, Pig = 3
Answer 3: 8 (this type of question had everyone stumped at one time, well done)
Answer 4: Zebra = 0, Moose = 0, Hippo = 0, Elephant = 0
I will have the results/explanation post out in a day or two.