Squigly Squigly's Brain Teasers

Question:

In a drawer you have black socks and white socks. They are not stored away in pairs. Without looking, how many times will you have to reach into the drawer to come out with a matching pair?

Answer:

To be guaranteed a pair you will have to reach in the drawer three times.

Try another Brain Teaser:

How can you get 10 horses in to 9 stables, bearing in mind that each horse must have its own stable?