Only those with 20/20 vision can spot the tiger without a twin in this picture

Can you spot the tiger without a twin? (Image: Gergely Dudás/Dudolf) Brainteasers are an ideal way to test your mind with something new and stretch your mental muscles first thing in the morning.  The Hungarian artist Gergely Dudas, creator of the internet’s most popular visual puzzles, has shared another difficult challenge, this time one that tests your visual perception. In the brainteaser, there are 25 tigers against a blue background with a variety of stripe patterns. Twelve pairs of identical twins have matching stripes, and one tiger doesn’t have a match. Can you spot the lonely tiger? If not, you can always scroll down to see the solution. Comment and let us know how you found it. The fourth tiger in the fourth row from the top is the odd one (Image: Gergely Dudás/Dudolf) The single tiger’s stripes are unmatched by the other twins. Still not got it? The solution is below. It is the fourth tiger on the fourth row from the top.  it’s important to continue exercising your brain, in the same way you keep your body fit. Doing puzzles like this helps to keep your mind sharp.  Studies  have also suggested that engaging in mentally stimulating activities like brain teasers can even help to reduce the risk of cognitive decline and dementia.