YOU could be a spy if you can solve this though GCHQ brainteaser - do you have what it takes?
A new puzzle book for children has been released by GCHQ spy chiefs which asks them to colour in a basic fruit bowl.
The rules are, you can use the only four colours that are needed - for example, green for the pear, yellow for the banana, red for the apple and orange for the orange.
It sounds simple but no two touching shapes can have the same colour.
Although the test is for kids, GCHQ says the same sorts of skills are needed to become a spy.
The puzzle is an example of lateral thinking, perseverance and ingenuity that spies at GCHQ apply to missions which keep the country safe.
And the fruit bowl puzzle is one of many in new book Puzzles for Spies, published today.
It focuses on language, codebreaking, coding, maths, analysis and cyber security, is the agency's first first one for children.
Colin, whose unofficial title at GCHQ is ‘Chief Puzzler’, said: "You don’t have to be a quiz champion – or even top of the class – to work at GCHQ.
"You just need to have an interest in figuring things out and an infectious curiosity. This is why so many of us are so fond of puzzles."
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The GCHQ was set up secretly in 1952 to work closely with MI5 and MI6.
Can you crack the code?