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These 7 Brainteasers Take Some Serious Thought

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Do you fancy yourself a master of riddles? Then you’re gonna love these seven brainteasers. But, be warned: they’re a good bit tougher than your usual head-scratchers. Have fun!

 

#7. If you have me, you want to share me. If you share me, you don’t have me. What am I?

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#7. If you have me, you want to share me. If you share me, you don’t have me. What am I?

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A: A secret.

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#6. I am holding a bee, and there is something in my eye. What is it?

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#6. What’s in my eye?

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A: Beauty

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#5. If you turn me on my side, I am everything, but cut me in half and I am nothing. What am I?

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#5. If you turn me on my side, I am everything, but cut me in half and I am nothing. What am I?

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A: The number 8.

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#4. You need to boil an egg in exactly 15 minutes, but only have a 7 minute hourglass and an 11 minute hourglass to mark the time. How do you do it?

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#4. How can you use a 7 minute hourglass and an 11 minute hourglass to time 15 minutes?

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A:

1. Start both hourglasses as you start boiling the egg.
2. After the 7-minute hourglass runs out, turn it to start it again.
3. Four minutes later, when the 11-minute hourglass runs out, turn the 7-minute hourglass again.
4. Wait for the 7-minute hourglass to run out, which will take another four minutes and get you to exactly 15 minutes of boiling time.

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#3. Four people arrive at a narrow bridge that can only hold two people at a time. It’s nighttime and they have one torch that has to be used during the crossing. Person A can cross the bridge in one minute, B in two minutes, C in five minutes, and D in eight minutes. When two people cross the bridge together, they must move at the slower person’s pace. Can they all get across the bridge in 15 minutes or less?

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#3. Can all four people cross the bridge – with the torch – in 15 minutes or less?

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A: 

1. First, A and B cross the bridge and A brings the light back. This takes 3 minutes.
2. Next, C and D cross and B brings the light back. This takes another 10 minutes.
3. Finally, A and B cross again. This takes another 2 minutes.

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#2. A man tells a census-taker that he has 3 children, and their ages combine to the product of 72. The sum of their ages is his house number. She complains that she still cannot figure it out, but when he replies that the eldest child likes chocolate pudding, she figures it out immediately. How?

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#2. How does chocolate pudding solve the riddle?

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A: Once looking at the house number, the census taker knows the sum of the children’s ages, but there are still two groups of numbers multiply to 72 share the same sum: (2,6,6) and (3,3,8). Once the man said his eldest child liked chocolate pudding, she knew the second grouping must be right, because in the first, there is no eldest child.

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#1. You’re in a dark room with a candle, a wood stove, and a gas lamp. You only have one match, so what do you light first?

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#1. Do you light the candle, the wood stove, or the gas lamp first?

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A: None – you light the match.

 

I hope you had fun with these!