This headache-inducing image puzzle brings a whole new meaning to the term, ‘brain training.’
Somewhere in the hustle and bustle of this station is a train and carriage going in the opposite direction to all the others – but can you catch it?
Tracking down the train is no mean feat but there’s no need to feel railroaded into choo-choosing the wrong one.
The brainteaser was created by Heathrow Express, whose spokesman said: “This puzzle is a bit of a headscratcher but the train is in there somewhere if you look closely.
“Thankfully catching the right train in real life is much easier – especially if you travel the smart way.”
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