Questions, questions

Questions that I have been asked recently and tried (and often failed) to answer coherently:

'What's the richest country in the world?'
'What's the poorest country in the world?'
'Why is Kenya poor?'
'Why is your country rich?'

I assume these topics have come up in their social studies classes. Simple kid-friendly answers are welcome!

'Why is your hair like that and mine like this?'
'Why is your skin white and mine black?'
'If I go to your country, will my skin look like yours?'
'Why is your nose pointy and mine flat?'

And other genetics-related questions which I usually get in a muddle about when answering...

'Who's your President?' Then on explaining that we have a Prime Minister and a Queen,
'Who chooses the Queen?'
'What colours are on your country's flag?' Easy enough, you'd think, but then I was asked,
'What does blue mean?'

[Actually, to put this last question in context, the kids learn that on the Kenyan flag red represents the blood lost during the Mau Mau uprisings and struggles for independence, green signifies the fertile land of the country and black symbolises the people's skin colour. So naturally, our flag should represent something similar...]

'Which country colonised your country?' Ah, yes, well, you see, the thing is, we were the ones who went around the world colonising other countries.
'When was the last time your country was colonised?' No, you see...
'Which countries did your country colonise?' Well, where to begin?!

And finally... 'How do people dance in your country?' Badly!
'Who are the best actors that come from your country?'

Before I could answer, one boy shouted Jason Statham!