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Graham Jones has been involved with puzzles for his entire professional career, as a creator, editor and checker. For seven years he was the managing editor at Puzzler Media, before retiring to become a freelance puzzle writer. Mensa is the largest and oldest high IQ society in the world. It is a non-profit organization open to people who score at the 98th percentile or higher on a standardized, supervised IQ or other approved intelligence test.
