tough upsc exam questions

Brain Teaser: How Many Balls Should You Pull Out to Get At Least 2 Of One Color

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Use your knowledge of probability to solve this riddle. A box contains 12 balls of three different colors. 4 each of red, yellow and blue. If you were to be blindfolded and asked to pick them at random, How many balls must you pull out to be sure that there are at least two of … Read more

Clock Brain Teaser: What Was The Correct Time?

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Use your logical skills to solve this riddle. My watch had stopped at 10 o’clock. In two minutes’ time it will be twice as many minutes short of 11 as it was past 10 o’clock 25 minutes ago. What was the correct time? So were you able to solve the riddle? Leave your answers in … Read more

Picture Riddle: What is Odd in the Given Picture?

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Improve your observation skills by solving picture riddles like this. Look at the picture below and find out what is odd about it. So were you able to solve the riddle? Leave your answers in the comment section below. You can check if your answer is correct by clicking on show answer below. If you … Read more

Crack the Code: Find the 3 Digits of the Code IV

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Use your logical skills and crack the code in the given riddle and if you get the correct answer, leave your answers in the comment section below. Benjamin had locked his suitcase with a 3-digit numerical code. He normally forgets his codes, so he wrote some clues indicating the what the code was. Can you … Read more

Picture Riddle: How Many Circles Contain a Black Dot?

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Test your observation skills with the help of this riddle. In the picture you will see some circles along with some black dots. Count the number of circles that contain a black dot. So were you able to count all the circles and solve the riddle? Leave your answers in the comment section below. You … Read more

Picture Riddle: Count the Number of Rabbits

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Test your observation skills with this picture riddle. In this photo you will see some White rabbits around a snow-covered railway track. Count the number of rabbits that you can see. So were you able to find all the rabbits in the picture? Leave your answers in the comment section below. You can check if … Read more

Picture Riddle: What is Odd About the Given Photo?

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This photo in the riddle, was first shared on Imgur, something about it isn’t quite right. Can you find what is strange in the picture below? Posing for a group photo, these 4 women look like regular tourists enjoying their vacation – but look closely, something doesn’t look right. So were you able to solve … Read more