I Turn Around Once

I turn around once,
What is out will not get in.
I turn around again.
What is in will not get out.

What am I?

A key.

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I Widen My Jaws

I flex my jaws when you use me,
My only purpose is to damage,
Yet I’m used by small children.

What am I?

Scissors.

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Throw It Out To Use

What do you throw out to use and take in when you’re done?

An anchor.

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To Be Gold Is Good

To be gold is to be good,
To be stone is to be nothing,
To be glass is to be fragile,
To be cold is to be cruel.

What am I?

A heart.

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Shorter Than My Four Siblings

Shorter than my four siblings,
but easily the strongest,
sometimes I wear a funny hat.

A Thumb.

By Sef Daystrom

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Letters, Letters, What Comes Next?

What letter comes next letter in this series?

A E F H I ___

K. It’s the series of capital letters without curves in alphabetical order.

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Two More Seconds

Ida puts her coffee into the microwave, as she does every morning, for exactly two minutes. When the microwave goes off, she opens the door, but then closes the door again and sets the microwave for two more seconds. What good would two more seconds be?

To rotate the handle on the mug so she can comfortably remove it.

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How to Stay Dry?

A group of ten people are going out for pizza but only two of them have an umbrella to keep them dry. Somehow they are able to walk all the way to the pizza place without getting wet. How?

It’s not raining.

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Kaitlyn’s Age Plus and Minus Three

Kaitlyn’s age plus three has an integer square root. Three years ago, Kaitlyn’s age was the square root.

How old is Kaitlyn?

Kaitlyn is 6 years old.

6 + 3 = 9, and 9 has an integer square root.

6 – 3 = 3, and 3 is the square root of 9.

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I Am Worthless

I am worthless, yet when added to others I add worth.
I confounded the ancient Greeks, yet I changed men’s understanding.

What am I?

0 (Zero).

Zero is nothing, yet when you add zeroes to a number like 1, it becomes 10, 100 or 1,000.

The ancient Greeks did not have a name for zero and did not use a placeholder. They seemed unsure about the status of zero as a number, philosophizing about how nothing could be something. Once zero was added, it allowed for more mathematical understanding.

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