A blind man had only black or white socks. In his drawer he had 4 socks. He went to the drawer and took out 2 socks. The chances that he had a pair of white socks was 1/2. What were the chances that he had drawn out a pair of black socks?

SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY What day comes three days after the day which comes two days after the day which comes immediately after the day which comes two days after Monday?

A man has 53 socks in his drawer: 21 identical blue,15 identical black and 17 identical red. The lights are fused and he is completely in the dark. How many socks must he take out to make 100 per cent certain he has a pair of black socks?

If he takes out 38 socks,although it is very unlikely,it is possible they could all be blue and red. To make 100 percent certain that he also has a pair of black socks he must take out a further two socks.