Where Am I?

HOW TO WIN... Solve the clues to work out where in the world I am! I am a transcontinental country with a population of around 100 million, and have the third largest economy in Africa. I am a founding member of the United Nations and my official language is Arabic. I have one of the longest histories of any country and have been considered a ‘cradle of civilisation’ and boast iconic monuments like the Giza Necropolis and the ruins of Memphis. My currency is the pound and my capital city is Cairo.Write on the entry coupon what country I am for your chance to win.