Soccer superstar David Beckham, whose mental agility has been questioned before in the British media, has said his six-year-old son's maths homework leaves him baffled. The England captain and Real Madrid midfielder was forced to call on his wife Victoria, a former member of the Spice Girls pop group, to help their son Brooklyn with a school assignment because the footballer found the sums too difficult. "Their homework is so hard these days," Beckham, 30, said in an interview with the Mail on Sunday. "It's totally done differently to what I was teached (sic) when I was at school, and you know I was like 'Oh my God, I can't do this'."