Conditional Probabilities...

My son and I enjoy playing UNO against each other. There is a total of 108 cards in each deck and 25 of each color; red, green, blue, and yellow and eight draw fours. 1. If we each start out with seven cards, what is the probability that my son will have one card of each color and three draw fours? 2. If I end up with all the yellow cards, what is the probability that my son will win the game