Molly has 6 grandchildren. She likes to be fair and buy gifts for all of them all at the same time. She found jigsaw puzzles, each discounted by 50¢. Find the original cost of each puzzle if she spent $27.
If Molly spent $27, then the original cost of the puzzles was $27 + $0.50 = $<<27+0.50=27.50>>27.50
Therefore, the original cost of each puzzle was $27.50 / 6 = $<<27.50/6=4.583333333333333>>4.583333333333333. Answer: \boxed{4.58}.