Today's PUZZLE

1. Some months have 30 days, some have 31; how many months have 28 days?
2. If you had only one match and entered a room in which there was a kerosene lamp, an oil heater, and a woodburning stove, which would you light first?
3. Divide 30 by 1/2 and add ten. What is the answer?
4. A farmer has 17 sheep. All but 9 died. How many did he have left?

> answers @ Comments below <<<