How many Bits do you need?

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Question code:		How many questions:
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	1	How many bits do you need to hold 512 different numbers?
	2	If you have 10 bits, what is the biggest number you can store?
	3	If you want to store the number 12, what is the minimum number of bits you will need?
	4	How many bits do you need to hold 4 different numbers?
	5	How many bits do you need to hold 8 different numbers?
	6	If you want to store the number 31, what is the minimum number of bits you will need?
	7	If you want to store the number 5, what is the minimum number of bits you will need?
	8	If you want to store the number 1, what is the minimum number of bits you will need?
	9	How many bits do you need to hold 64 different numbers?
	10	How many bits do you need to hold 16 different numbers?