Ray Lewis grew up using a deck of cards to do push ups and sit ups. If he drew a 7 he would do 7. An ace was 25 and a Joker 30. He would go through the whole deck. In the nfl, he would do it 3 times for each exercise. Also the reason he wore 52 was because of the number of cards in the deck (article)
odd number pair of legs: so either 98 (49 x 2) or 102 (51 x 2) legs.