Smart Smarties - Ends 18th March

https://habbox.com/text/Love/Smart+Smarties

Every time I have a packet of smarties I always attempt to do the questions on the back of the packet. Sometimes I will get stuck on some of them though so that's where you come in! Help me out by answering the questions below that I got stuck on and then PM your answers to HabboxComps. Good luck!

1. What B is a flying mammal?
2. Which S is a planet with rings?
3. What W is capital of the USA?
4. What R is the world's biggest tree?
5. What C is the country with the most people in?

Prize: 5 credits + 10 rep