Problem: Sony introduced a product to the world market in 1979, and in October 2010 announced that they would cease selling it in Japan. What product was it?
======
A: walkman

Problem: Which two word name is given to a mixture of nitric acid and sulphuric acid?
======
A: aqua regis

Problem: Who was the first British monarch to make a Christmas broadcast to the nation?
======
A: george v

Problem: How many lines are there in a sonnet
======
A:
fourteen