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A Monstrosity

I stand tall and am made of steel,
With baguettes and garlic at my heel.

The hunchback’s house could see my head,
I’m more well known than a certain bread.

I love the colors red, white and blue,
But maybe not as much as you.

I’m a marvel for all to see,
Though to some I am a monstrosity.

What am I?

The Eiffel Tower

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I Can Ruin a Lucky Run

I can ruin a lucky run,
Or create an item of wealth,
But for man, woman or child,
I’ll always steal your health.

What am I?

Die. The roll of a die can ruin a game of chance. A die (i.e. mold) is used to create new coins and so far at least, we all die.

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Falling Window Cleaner

A window cleaner is cleaning a window on the 25th floor of a skyscraper when he slips and falls. He has no safety equipment and nothing to soften his fall, yet he is not hurt. How can this be?

He was cleaning the inside of the window.

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Mystical Rock Group

What rock group has four men that don’t sing?

Mount Rushmore.

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The Potato Paradox

Fred brings home 100 pounds of potatoes, which (being purely mathematical potatoes) consist of 99 percent water. He then leaves them outside overnight so that they consist of 98 percent water. What is their new weight?

50 pounds.

100 lb of potatoes with 99% water weight means there’s 99 lb of water and 1 lb of solids, a 1:99 ratio.

If the water decreases to 98%, then the solids account for 2% of the weight. The 2:98 ratio reduces to 1:49. Since the solids still weigh 1 lb, the water must weigh 49 lb for a total of 50 lbs for the answer.

Read more at the Potato Paradox wikipedia page.

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Important Rebus

What does this represent?


Equally important.

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An Ancient Invention

What ancient invention allows people to see through walls?

A window.

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False Positive HIV Test

Imagine an HIV test that is 95% accurate (false positive rate of 5%) and around 2% of the tested population is infected with HIV. What is the probability that you actually have HIV when your test comes back positive?


To read more about this, see the False Positive Paradox page on Wikipedia.

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Paula and Quincy

Paula had four times the money that Quincy had, but after Paula gave Quincy $33, Quincy had 3 times as much as Paula.

How much did they each start with?

Paula had $48 and Quincy had $12.

If Q is the amount Quincy had, then 3(4Q – 33) = Q + 33

Solved, Q = 12.

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How to Save Gas

If you could chose to increase the average fuel economy of a car, which of these would save the most fuel?

1. 10mpg -> 12mpg
2. 12mpg -> 15mpg
3. 15mpg -> 20mpg
4. 20mpg -> 30mpg
5. 30mpg -> 60mpg

It turns out they all save the same amount of fuel.

If you travel 100 miles:

100 / 10 = 10 gallons used
100 / 12 = 8 1/3 gallons used

10 – 8 1/3 = 1 2/3 gallons saved

100 / 30 = 3 1/3 gallons used
100 / 60 = 1 2/3 gallons used

3 1/3 – 1 2/3 = 1 2/3 gallons saved

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