Riddles and Brain Teasers

I travel a lot and meet both the rich and the poor, but nobody knows where I am going next. I’m invisible but you can see what I do. Who or what am I?

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Wind (or anything blown by the wind). It moves all over, reaches the rich and the poor equally and no one knows exactly which way the next gust of wind will blow. You can’t see the wind, but you can see what it blows, like leaves or dust.

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Tagged with What am I?

I Move Quickly

Physicists have built devices to make me move quickly. My last eight letters can be commonly found in newspapers, magazines, and journals.

What am I?

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Particles. Physicists use particle accelerators and newspapers, magazines and journals have articles.

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Tagged with What am I?

Twenty from Three 3s

What’s the simplest way to make 20 using only three 3s (no other digits) and a combination of mathematical operations using any of these symbols?

+ – × / ^ ! √ . ()

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(3 + 3) / .3 = 20

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Ten Times Two is 0218

10 × 2 = 0218
20 × 2 = 1421
30 × 2 = 1632
40 × 2 = ?

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2840.This makes the first column the start of the Fibonacci series: 0, 1, 1, 2.
The second column is the even numbers: 2, 4, 6, 8
The third column is counting up by ones: 1, 2, 3, 4
And the last column is the answer in the first row in reverse: 8, 1, 2, 0.Don’t ask what 50 × 2 equals. I have no idea. :)Thanks to Jim for helping with the solution.

2840.

This makes the first column the start of the Fibonacci series: 0, 1, 1, 2.
The second column is the even numbers: 2, 4, 6, 8
The third column is counting up by ones: 1, 2, 3, 4
And the last column is the answer in the first row in reverse: 8, 1, 2, 0.

Don’t ask what 50 × 2 equals. I have no idea. :)

Thanks to Jim for helping with the solution.

Posted in Brain Teasers

Tagged with Series

The Floating Cork

If a cork is placed into a glass of water, it will almost always drift to the side of the glass. There is one simple way, however, to get the cork to float in the center of the glass. What is it?

Water, the glass, and the cork are all that is required.

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The reason that a cork drifts to the side of a glass is that it floats to the highest point. Since water “clings” to the glass, the highest point is around the edge of the water. To get the cork to float in the middle of the glass, all you have to do is fill the glass as much as possible. The water will form a convex shape above the glass, with the highest point at its center. This is where the cork will settle.

Posted in Brain Teasers

Complete This GPPAP Series

What are the next four letters in this series?

GPPAP KTGAMTC WTBCOTP ????

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GPRA – Georgie Porgie ran away.Here’s the whole nursery rhyme:Georgie Porgie, pudding, and pie,
Kissed the girls, and made them cry.
When the boys came out to play,
Georgie Porgie ran away.

GPRA – Georgie Porgie ran away.

Here’s the whole nursery rhyme:

Georgie Porgie, pudding, and pie,
Kissed the girls, and made them cry.
When the boys came out to play,
Georgie Porgie ran away.

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