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The More You Run

The more you run, the harder I am to catch. What am I?

Your breath.

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Bank Wait Times

Suppose a small bank has one teller and customer transactions take 10 minutes on average. With 5.8 customers arriving per hour, what is the expected wait time? What would it be if you added a second teller?

With one teller, customers will wait nearly five hours on average. But adding a second teller makes the wait go down to 3 minutes.

Thanks to John D. Cook for this one.

Posted in Brain Teasers

Dead At The End of An Alley

A man is found dead at the end of an alley. A detective who enters the scene sees the letter X and immediately knows who killed the man and why. What did the detective conclude?

The alley is a bowling alley. The man who was killed was a pin spotter (an old profession where they would reset the pins by hand). The X was the marking on the score sheet for a strike. The detective saw the letter X and knew that the person bowled last, got a strike, and was due to bowl again. But they bowled before the pin spotter could get out of the way.

Submitted by Dennis

Posted in Riddles

The Sheep’s Will

A farmer dies leaving a will dividing his flock of nineteen sheep with the following ratios:

Half to his oldest son, a quarter to the middle son and one fifth to his youngest son.

Without cutting any sheep up, how did the executor of the will fulfill the farmer’s wishes?

The executor went to the neighbouring farm and asked to borrow a sheep for a few minutes. Then he returned to the sons and said, “Half of the (now) twenty sheep is 10. A quarter of the twenty sheep is 5. A fifth of the twenty sheep is 4. 10 + 5 + 4 = 19. Then the executor took the borrowed 20th sheep back to the neighbour.

Thanks to Annette for sending this in.

Posted in Brain Teasers

Dead and Bound

Dead and bound,
what once was free.
What made no sound,
Now sings with glee.

What is it?

Any wooden, stringed instrument (guitar, violin, cello, ukulele, etc)

Posted in Riddles

Ages Of Myself and My Brother

My current age, is the age of my 14 year-old brother plus one third of my age. How old will I be when my brother is twice his current age?

I will be 35. I am currently 21.

x = my current age

x = 14 + x/3
3x = 42 + x
2x = 42
x = 21 (so 14 years later, I'll be 35)
Posted in Brain Teasers

Harvest Though No Grain

I harvest you, though you’ve no grain,
I reap you in the wind and rain,
You bleed not but your soft meat
And nectar makes a sweetest treat.
What am I?

A clam or oyster. You harvest clams or oysters on the beach or go diving, and the beach is often windy and rainy. Neither bleeds but are known for having, soft, slimy meat, and people often drink the “clam nectar” or “oyster juice”.

Thanks to Helena for this submission

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Word Value Of 52

If every letter of the alphabet is worth its numerical value (A=1, B=2, C=3), what’s a common 11-letter word whose letter values total only 52?


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He And She Both Have One Each

He and she both have one each, but every person has two. A citizen has three and a human being has four. A personality has five and an inhabitant of earth has six. What are they?


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All In White, A Fossil

All in white, a fossil,
fresh snow, a loan, the sky,
But just what am I?

A bride (something old, something new, something borrowed, something blue).

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