Four Colored Balls in Gym Class

Four different-colored balls are being used in a gym class activity – blue, red, yellow and orange. Each student must hold two different-colored balls, but no two students can have the same two colors (for example, only one student can hold the blue and red ball).

How many students can play the game?

Six. If you prefer math, you can calculate it as 4 combination 2

4! / (2!)^2
24 / 4 = 6

Or you can work it out manually:

1. Blue Red
2. Blue Yellow
3. Blue Orange
4. Red Yellow
5. Red Orange
6. Yellow Orange

Posted in Brain Teasers

Lillian’s Shower

Lillian gets in the shower, but her long, flowing hair is not wet when she gets out again. How is this possible?

She didn’t turn the water on, she wore a shower cap or it was a baby shower.

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Bowl That Can’t Be Filled

I am as round and deep as a bowl, but all the world’s water couldn’t fill me up. What am I?

A sieve.

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Add More But Weigh Less

The 17 items in your shopping cart weigh 8 pounds. But when your daughter puts in a ball, poster board and yo-yo the shopping cart weighs less. How is that possible?

Your daughter had to get out of the cart to fit the remaining items.

Posted in Brain Teasers

What Is The Longest Word With Horizontal Symmetry

A word with horizontal symmetry is one whose letters are a mirror image of themselves. If you drew a horizontal line across the word and folded it over, it would overlap on itself. For example, EXCEEDED and ICEBOX have horizontal symmetry, but VERTICAL and SIMPLE do not.

What is the longest word with horizontal symmetry?

CHECKBOOK.

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Not Flesh, Feather, Scales Nor Bone

We are not flesh, feather, scales nor bone;
Yet we still have fingers and thumbs of our own.

What are we?

Gloves. They’re not made of flesh, feather, scales or bone, but have fingers and thumbs.

Posted in Riddles

I Lack Much Reason, But Often Rhyme

I lack much reason, but often rhyme,
And require logic to pass the time,
To get the words to tell your kin,
Look for clues that lie within,
Though all are different, they act the same,
The answer is practically in the name.

What am I?

A riddle.

Posted in Riddles

Just Two Letters

Using just two letters, fill in the blank letters below to make five English words. The letters are not always in the same order and the same letter may of course be used more than once. What are the words?

1. _ N T _ I N _
2. V I _ _ _ R
3. _ H _ _ L
4. _ _ _ K
5. _ _ _

The two letters are E and W. They make the following words

1. ENTWINE
2. VIEWER
3. WHEEL
4. WEEK
5. EWE

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One Three Five

What word comes next?

one three five four ______

Four. Each word is the number of letters in the previous word. And since four has four letters, it would continue with four forever after.

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Eight Eleven Five Sequence

Which two numbers are missing and where do they go in the sequence?

8, 11, 5, 14, 1, 7, 6, 10, 13, 3, 12, 2

The missing numbers are 4 and 9. The list is sorted alphabetically by the English spelling of the numbers, so four belongs after five and nine comes after fourteen.

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