A PRIMARY school celebrated World Maths Day by releasing mathematical puzzles, challenges and questions into the sky.

Pupils at Brockhampton Primary Academy School, near Bromyard, attached questions to 40-helium filled balloons and released them.

Each class wrote five maths puzzles and the school hopes that members of the public find them, answer them and send them back.

They have already had a response from someone in Northamptonshire.