1.How many cards must you select from a standard 52 card deck

1. How many cards must you select from a standard 52 card deck, to ensure that you have at least one pair (2 of the same kind, e.g., 2 fours, 2 kings, etc.; make sure to explain your answer)

2. You have 5 different pairs of drumsticks randomly thrown in a box. How many single drumsticks must you grab (randomly, without looking) to ensure that you have at least one matched pair?