Question: Greg has lent his sister Tessa money on several occasions. Greg writes down all of his sister's debts in a notebook, the first time he lent her $40. A week later, Tessa paid him back half of her debt. A few days later she asked him for $10 more. How much does Tessa still owe Greg?
Answer: After Greg lent her $40, Tessa paid him back 40 / 2 = $20. So Tessa's debt was 40 - 20 = $20. Finally, she asked for $10 more, leaving the debt at 20 + 10 = $30. The answer is 30.

Question: Five times a week, Onur bikes 250 kilometers a day. His friend Hanil bikes 40 more kilometers of Onur biking distance in a day. What's the total distance the two friends bikes in a week?
Answer: Since Onur bikes 250 kilometers in a day, he bikes 5 * 250 = 1250 kilometers for five days in a week. Onur's friend Hanil bikes 40 more kilometers in a day than Onur, meaning he bikes for 250 + 40 = 290 kilometers. In five days of the week, Hanil covers 290 * 5 = 1450 kilometers. In total, the two bikes for 1450 + 1250 = 2700 kilometers in 5 days of a week. The answer is 2700.

Question: Aliens and Martians have different numbers of limbs. Aliens have three arms and eight legs, while Martians have half as many legs and twice as many arms. How many more limbs will five aliens have than five Martians?
Answer: Martians have 2 * 3 = 6 arms each. They have 8 / 2 = 4 legs each. Five martians will have 5 * 6 + 5 * 4 = 30 + 20 = 50 limbs. Five aliens will have 5 * 3 + 5 * 8 = 15 + 40 = 55 limbs. Five aliens will have 55 - 50 = 5 more limbs than five Martians. The answer is 5.

Question: James buys 5 packs of sodas that are 12 sodas each. He had 10 sodas already. He finishes all the sodas in 1 week. How many sodas does he drink a day?
Answer:
He bought 5 * 12 = 60 sodas. So he had 60 + 10 = 70 sodas. So he drank 70 / 7 = 10 sodas per day. The answer is 10.