[Q]: Doctors studied two groups of individuals: group O with people over 65, and group S with people under 65 years old. They published the results in a magazine. Which group had more people that have free time for hobbies?
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[A]: group O

[Q]: Toronto is home to one of the leading manufacturers of aerosol sprays in the country. Because of this, homes in Toronto often spray high levels of aerosol on a regular basis. In Saskatchewan, meanwhile, the local government enacted a ban on aerosol sprays several years ago, so their level of aerosol use is now essentially zero. Which city, Toronto or Saskatchewan, will be contributing more to skin cancer risk?
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[A]: Toronto

[Q]: Mary had two twin daughters, Mimi and Coco. Coco was healthy, but Mimi had hemophilia. Mimi took frequent trips to the doctor's office. Which girl had more clotting factors in the blood?
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[A]: Coco

[Q]: Two brothers studied chemistry in school. Ted studied alkanes, while Ned studied cycloalkanes. They both received grade A. Which brother learned more about the boiling points of alkanes?
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[A]:
Ted