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 4 different numbers?
	2	How many bits do you need to hold 32 different numbers?
	3	If you have 9 bits, what is the biggest number you can store?
	4	If you have 7 bits, what is the biggest number you can store?
	5	How many bits do you need to hold 512 different numbers?
	6	If you want to store the number 146, what is the minimum number of bits you will need?
	7	If you have 7 bits, what is the biggest number you can store?
	8	If you want to store the number 95, what is the minimum number of bits you will need?
	9	If you want to store the number 37, what is the minimum number of bits you will need?
	10	If you want to store the number 3, what is the minimum number of bits you will need?