How about this for a really big problem – the world’s largest RUBIK‘s cube.
The giant brainteaser is 5ft 1in square, weighs 16 stone and is 20,000 times the size of an ordinary cube.
Puzzle fan Tony Fisher built it in his garden shed using cardboard, plastic and expanding foam.
He spent 46 days making the giant cube and says it can be played with despite its huge size.
Tony, 50, of Ipswich, Suffolk said: “I was interested in the Rubik‘s Cube in the 80s and I started making things to do with them.
“I’ve also always been interested in world records so they both came together.”
He refuses to reveal exactly how he put his cube together because he is anxious not to be outdone by bigger rivals.
He added: “Someone could copy me.
“I’ve made a couple of hundred puzzles over the years and this is my biggest achievement – I’m really proud of it.
“You work away in the shed into the night alone but when it’s finished you’re happy with it.
“I don’t know any others who have a bigger cube, unless someone has been hiding it, and I’ve been in the business for 30 years.”
A standard Rubik‘s Cube is 5.7cm by 5.7cm. The smallest ever was made by Russian puzzle designer Evgeniy Grigoriev with a 3D printer and is 5.7mm by 5.7mm.
Tony said he would be prepared to sell his for thousands of pounds – but only if the buyer collects.
Guinness World Records said they will consider Tony’s cube if he applies to them for recognition.