QUESTION: Fix punctuation: Loyds most famous puzzle was the 15 Puzzle which he produced in 1878 Loyd wrote about the puzzle in Sam Loyds Cyclopaedia of 5000 Puzzles Tricks and Conundrums which was published in 1914 after his death by his son also called Sam Loyd
ANS: Loyd's most famous puzzle was the 15 Puzzle which he produced in 1878. Loyd wrote about the puzzle in Sam Loyd's Cyclopaedia of 5000 Puzzles, Tricks and Conundrums which was published in 1914 after his death by his son (also called Sam Loyd):

QUESTION: Fix punctuation: The featured China GuangDong led osier light led landscape miniascape manufacturers and listed here are sourced by the karnar lighting
ANS: The featured China GuangDong led osier light led landscape miniascape manufacturers and listed here are sourced by the karnar lighting.

QUESTION: Fix punctuation: 8Christian Jacobsen Wandt born 1796
ANS: 8)Christian Jacobsen Wandt, born 1796

QUESTION: Fix punctuation: But I would have written this it would probably not have time to read before the grades are added
ANS:
But I would have written this it would probably not have time to read before the grades are added.