Ask Mr Brain...all will be explained

Which came first, the chicken or the egg? This is an eternal $64 million question which has got philosophers and scientists going round in circles. There is no correct answer - but here are a couple of ideas which might help you.

One school of thought runs along this line: A chicken is an actual chicken whereas an egg is only a potential chicken. Since philosophically speaking, actuality always precedes potentiality, the chicken came first.

Another tongue-in-cheek answer is to tell your friends to check the dictionary - as chicken appears before egg, so the chicken came first.

Apart from those laid by chickens, eggs have been around for a long time. About 245 million years ago, dinosaurs laid eggs and fish had already been doing it for millions of years. Since the earliest bird, archaeopteryx, is about 150 million years old and eggs have been around a lot longer than that, scientifically speaking, the egg came first.

What is the difference between a butterfly and a moth? Butterflies and moths are unique specimens of the insect world - ev ery part of their body is covered with thousands of tiny scales. The scientific name for such species is lepidoptera, a Greek word meaning 'scaled wing'.

Most butterflies have bright and colourful wing scales while in moths these scales are usually dull and drab. Another difference is that butterflies usually fly during the day while moths tend to appear at dusk or during the night. There are exceptions to this general rule - the sunset moth is as colourful as any butterfly but it is actually a day-flying moth.