David finished his homework in 60 minutes. He spent 15 minutes on his math homework and 18 minutes on his spelling homework. He spent the rest of the time reading for his daily reading log. How many minutes did he spend reading?
Let's think: He spent 15 + 18 = 33 minutes doing homework. David spent 60 - 33 = 27 minutes reading.. The answer is: 27.

Mason is mixing up some salad dressing. He takes a bowl that holds 150 ml and fills it 2/3rds with oil and 1/3rd with vinegar. The oil weighs 5 g/ml and the vinegar weighs 4 g/ml. How many grams does the salad dressing weigh?
Let's think: First find how many ml of oil Mason adds by multiplying the volume of the bowl by the proportion filled with oil: 150 ml * 2 / 3 = 100 ml. Then repeat the process to find how many ml of vinegar he added: 150 ml * 1 / 3 = 50 ml. Now find the weight of the oil by multiplying the volume by the weight / volume ratio: 100 ml * 5 g / ml = 500 g. Do the same procedure with the weight and weight / volume ratio of the vinegar to find its weight: 50 ml * 4 g / ml = 200 g. Now add the weight of the oil and the vinegar to find the weight of the salad dressing: 500 g + 200 g = 700 g.. The answer is: 700.

Darcy washes and drys 20 shirts and 8 pairs of shorts. If he folds 12 of the shirts and 5 of the shorts, how many more remaining pieces of clothing does Darcy have to fold?
Let's think: Darcy still has to fold 20 - 12 = 8 shirts. Darcy still has to fold 8 - 5 = 3 shorts. Darcy has to fold a total of 8 + 3 = 11 pieces of clothing.. The answer is: 11.

In a graveyard, there are 20 skeletons. Half of these skeletons are adult women, and the remaining number are split evenly between adult men and children. If an adult woman has 20 bones in their body, and a male has 5 more than this, and a child has half as many as an adult woman, how many bones are in the graveyard?
Let's think:
We first need to figure out how many of each type of skeleton there are. Since half the 20 skeletons are adult women, that means there are 20 / 2 = 10 adult women's skeletons. The remaining half, 10, is split between adult men and children, meaning there are 10 / 2 = 5 of each. Since an adult woman has 20 bones in their body, this means that the 10 skeletons have 20 * 10 = 200 bones in total. Since an adult man has 5 more bones in their body than an adult woman, this means they have 20 + 5 = 25 bones in their body. There are 5 adult men, meaning there are 25 * 5 = 125 bones in the adult male skeletons in total. Since a child has half as many bones as the 20 in an adult woman, this means the children have 20 / 2 = 10 bones in their body. Since there are 5 children, this means there are 5 * 10 = 50 bones in the children's skeletons in total. Therefore, altogether there are 50 + 125 + 200 = 375 bones in total in the graveyard.. The answer is: 375.