As a boy growing up in the UK, Khaled Saïd loved puzzles, maths and “figuring things out”. His father, Wafic, had made much of his fortune building significant infrastructure projects in the Middle East during the 1970s and 1980s. But Saïd, 38, had always been interested in the portfolio side of Saïd Holdings, which his father founded in 1987. Solving where he could fit into his family’s business was one more puzzle he had to “figure out”.