How smart are you really?

This Test has been used for over 50 years and has pretty much done it with great accuracy. It has been said Bill Gates once took this test and scored a 3 on it. Share your score with friends! Good Luck!
1. How many birthdays does the average man have?
2. Some months have 31 days; some have 30 days; how many have 28?
3. A man builds a house with four sides of rectangular constructions, each side having a southern exposure. A big bear comes along. What colour is the bear?
4. Is it legal for a man in California to marry his widow's sister?
5. Divide 30 by 1/2 and add 10. What is the answer?
6. If there are 3 apples and you take away 2, how many do you have?
7. A doctor gives you three pills telling you to take one every half hour. How many minutes would the pills last?
8. A farmer has 17 sheep, and all but 9 die. How many are left?
9. How many animals of each sex did Moses take on the ark?
10. If you only had one match and entered a cold and dark room, where there was an oil heater, an oil lamp and a candle, which would you light first?