[Question]: Jack has four plates with a flower pattern and 8 plates with a checked pattern. He buys new twice as many polka dotted plates as the number of checked plates he currently has, then smashes one of the flowered plates. How many plates does he have left?
[Answer]: Jack buys 2 * 8 = 16 polka dotted plates. After smashing one, he has 4 - 1 = 3 flower plates left. In total, he has 3 flower plates + 16 polka dotted plates + 8 checked plates = 27 plates.
So the answer is 27.

[Question]: John decided to buy 10 pins for himself. They are normally $20 each but they were on sale for 15% off. How much did he spend on pins?
[Answer]: The sell reduced the price of each pin by 20 * .15 = $3. So he paid 20 - 3 = $17 per pin. So the total cost was 17 * 10 = $170.
So the answer is 170.

[Question]: Following her doctor's recommendation to up her daily water intake, Nancy now drinks the equivalent of 60% of her body weight in water. If Nancy's daily water intake is 54 pounds, how much, in pounds, does she weigh?
[Answer]:
Let Nancy's weight be x. We know that 60 / 100 * x = 54 pounds. This translates to x = 54 * 100 / 60 = 90 pounds.
So the answer is 90.