A quiz of United Kingdom

Search in the web to find the answer to these questions:

1. How many languages are spoken in Great Britain?
2. What's April's fool day?
3. Wht's the minimum driving age in the UK?
4. What and when is Ireland's national day?
5. What's a leprechaun?

Here you have some links that may help you
Ireland
great britain

Finally, and to learn some history, look up all the information you can get about STONEHENGE
in the following links:
http://www.stonehenge.co.uk/about.php
http://www.stonepages.com/