You have the eyes of a hawk if you can spot rogue number hidden among letters in under 20 seconds in this illusion

SPECTATORS are hawk-eyed if they can find the number hidden among the rows of letters.

Readers’ eyes dart as they rush to spot the digit in less than 20 seconds to complete the puzzle.

Readers were invited to find the number among the letters Credits: Lenstore

Players were challenged to find 8 in this fiendishly tricky brain teaser.

The image, created by contact lens retailer Lenstore, consists of 21 rows of the letter B.

Did you manage to beat the clock and find the number?

But if the puzzle turns out to be too much of a headache, fear not because help is on the way.

Struggling readers should focus on the right side of the image.

After scanning five lines from the top, you should be able to see the number in the sixth line.

If that proves too easy, see if you can find the odd rose in a sea of roses in less than 10 seconds.

Readers up for a challenge should try to see if they can spot a flat tire in less than 45 seconds.

Viewers might say they’re hawk-eyed if they can find the two lost dogs in this park scene.

Players were also challenged to see if they could find six hidden words in under 15 seconds in this farm scene.

Can you find the number within 20 seconds? Credit: Lensstore