Brain Teasers & Puzzles
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A chocolate costs 6 rupees and a soda costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many sodas can be purchased with that amount.
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Rihana, Peeta, and Logan order a pizza for $10. Out of the three, Rihana and Peeta were quite hungry and ate 6 slices a piece, while Logan had just 2 slices.
Now, they want to split the cost among them fairly but due to the lack of change, they decide to round of the cost to the nearest possible dollar.
Can you find out the fair way which should be used to split the money?
What if the pizza was worth $11?
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In order to complete the racing competition, the London racetrack has to submit its top and the most famous three horses to win the competition. Due to a electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the London racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?
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There are 32 red socks and 32 blue socks in the drawer. You can’t tell which sock is right and which is left. It’s dark and you are pulling socks out of the drawer. How many do you have to draw to be sure that you have a pair? (At least 2 socks of the same color)
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Parents buy cookies for their kids. They are saving money so they buy two discounted ones (few days after best before). They don’t want to look greedy so they also buy two cookies for the full price.
When they come home their two kids grab cookies, and each get two. They don’t check best before so their choice is random.
Do you think that life is fair and each kid gets one expired and one good cookie? Or one kid gets both expired? What is more likely to happen?
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You have three boxes full of marbles. There are stickers saying “white” “red” “red and white” on them indicating what color are the marbles inside the boxes.
One day someone moves the stickers so that none of them is on a correct box. How many marbles do you have to draw to place all stickers correctly again without looking inside the boxes?
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A river. Shepherd wolf goat and a cabbage on one bank. Wolf wants to eat the goat wants the cabbage. Into the shepherd can take only one animal or a cabbage in the boat. Two animals or an animal and a cabbage can’t fit in the boat together with the shepherd. Surprisingly neither wolf nor goat can paddle.
How does the shepherd get wolf goat and cabbage to the other side so that goat never stays with wolf or cabbage without shepherds’ supervision?
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There is father and son in a car. As it happens on the roads from time to time the have a terrible accident. They are both seriously injured and ambulances carry them to two different hospitals.
The son is on a surgery table while the surgeon walks in and says: „I can’t do the surgery on him he is my son!”
How is it possible?
(assume relations are blood – no stepfather involved)
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