This is the latest team of pupils ready to battle it out with others from across the borough to find the smartest school in Harrow.
The pupils from John Lyon School are preparing to take part in the MasterMind in Harrow competition, organised by Mind in Harrow in partnership with the Harrow Times.
Six schools will take each other in the quiz on next year at Harrow School, with each school's three teams of Year 9 pupils tasked with raising £400 for the charity, by any means they like.
As part of their fundraising, boys from John Lyon had workshop with economics teacher Stuart Foster to learn about how to manage costs and increase profits.
During the past few months the teams have taken on a several fundraising strategies including cake sales and non-uniform days at school and plan to host collections in the run up to Christmas.
The other schools taking part in the contest are Hatch End High School, Bentley Wood High School, Harrow School, Sacred Heart and North London Collegiate School.
Each school will enter three teams of four Year 9 pupils to face the quick fire ‘University Challenge’ style quiz next year.
Mind in Harrow helps more than 1,000 people in the borough who experience poor mental health offering helpline, counselling and employment support.