Daily Mail has put together an interesting list of questions and answers you may have never wondered, but are still fascinating to read. Just some of the questions raised: Why does bottled water from a 3,000-year-old source - such as a spring, mountain or glacier - carry a ‘best before’ date only two years in the future? or Why are fizzy drinks more tasty than the same liquid once it has gone flat? The answer to the soft drink one does make sense:

Most fizzy drinks are made by injecting carbon dioxide into the liquid at high pressure. This results in the formation of carbonic acid, which is what gives the drinks their appealing ‘fizzy’ taste - not the bubbles, as many people believe.When the drink goes flat, most of the dissolved carbon dioxide has escaped back into the atmosphere in the form of gas bubbles - taking with it the carbonic acid. So the fizzy drink is more appealing than the flat one because that essential ingredient in its flavour, the carbonic acid, has disappeared along with the bubbles.

You can give the full list a read here.