Optical illusion: Only eagle-eyed can find the odd number 229 in 7 seconds Think your vision is sharp? This optical illusion hides a sneaky 229 among identical numbers. You have got 7 seconds to ...

Case in point- this illusion that has been going viral. The challenge focuses on finding the odd number out. You are truly eagle-eyed if you can spot the lone odd number in less than 10 seconds.

This visual challenge asks you to look closely at an image where three odd numbers are cleverly hidden. Using sharp focus and logical thinking, test whether your attention to detail is strong ...

Test your IQ with this challenging brain teaser! Can you find the odd number '255' hidden among '256' in just 9 seconds? Sharpen your observation and problem-solving skills now!

Optical Illusion: Take a look at the picture given below, the image is of a board full of numbers. All the numbers are the same- a series of 135s. However, among all the 135s, there is also an odd ...

Look at this optical puzzle closely, it is designed to test your visual acuity. Observe this image carefully and find out the odd number present in the image. You only get 6 seconds to find the odd ...

Look at this optical puzzle closely, it is designed to test your visual acuity. Observe this image carefully and find out the odd number present in the image. You only get 5 seconds to find the odd ...

Given an array of integers arr, return the number of sub-arrays with an odd sum. A sub-array is a contiguous part of the array. The solution uses a prefix sum approach to efficiently count the number ...

Your task is to find the odd number. But wait! You have only 9 seconds to finish this challenge. Ready? Start observing the image carefully. Scan the grid methodically, with the clock ticking away.

Test your observation skills with a challenging brainteaser that features a hidden odd number among a series of seemingly identical numbers. You have seven seconds to find the different number in ...