Question: A store puts out a product sample every Saturday. The last Saturday, the sample product came in boxes of 20. If they had to open 12 boxes, and they had five samples left over at the end of the day, how many customers tried a sample if the samples were limited to one per person?
Answer: The store opened 12 boxes of 20 products, so they put out 20 * 12 = 240 product samples. They had 5 samples left over, so 240 - 5 = 235 samples were used. Each customer could only have one sample, so 235 * 1 = 235 customers tried a sample. The answer is 235.

Question: Frank is making hamburgers and he wants to sell them to make $50. Frank is selling each hamburger for $5 and 2 people purchased 4 and another 2 customers purchased 2 hamburgers. How many more hamburgers does Frank need to sell to make $50?
Answer: Frank sold 4 hamburgers and then sold 2 more, so all together Frank already sold 4 + 2 = 6 hamburgers. If each hamburger is $5 and he sold 6 hamburgers already, Frank has made 5 * 6 = 30 dollars. Frank wants to make $50 and has already made $30, so Frank still needs 50 - 30 = 20 dollars. Since he needs $20 and each hamburger is $5, Frank needs to sell 20 / 5 = 4 more hamburgers. The answer is 4.

Question: Carly had 42 lollipops to share with her friends. Half of the lollipops were cherry, and the rest were equal amounts of watermelon, sour apple, and grape. How many lollipops were grape?
Answer: Of her 42 lollipops, half were cherry, so 42 lollipops / 2 = 21 were not cherry. Of the 21 that were not cherry, 1 / 3 of them were grape, so 21 lollipops / 3 = 7 grape lollipops. The answer is 7.

Question: Samir just turned half the age Hania was 10 years ago. If in five years Hania will be 45 years old, what will Samir's age be five years from now?
Answer:
If in five years, Hania will be 45 years old, currently she is 45 - 5 = 40 years old. Ten years ago, Hania was 40 - 10 = 30 years old. Samir just turned half the age Hania was 10 years ago, which means she is 30 / 2 = 15 years old. In five years, Samir will be 15 + 5 = 20 years old. The answer is 20.