Tech companies are infamous for torturing career hopefuls with mind-melters during interviews. This week, you’ll try your hand at one without the stress of job prospects on your shoulders. Google is ...

There is a 12 out of 24 chance that the first sock you pick is black, because there are 12 black socks out of the total 24 socks. Simplified, this is a 1 out of 2, or 50 percent, probability. But when ...

A drawer contains 12 identical black socks and 12 identical white socks. If you pick two socks at random, what is the probability of getting a matching pair? That was ...