Find the probability for a poker hand to be a

(a) royal flush (ten, jack, queen, king, ace in a single suit);

(b) four of a kind (four cards of equal face values);

(c) full house (one pair and one triple of cards with equal face values);

(d) straight (five cards in sequence regardless of suit);

(e) three of a kind (three equal face values plus two extra cards);

(f) two pairs (two pairs of equal face values plus one other card); (g) one pair (one pair of equal face values plus three different cards).