What is the Five Digit Number?

What 5-digit number satisfies the following requirements?

1. No zeroes
2. First two digits are the same
3. Fourth digit is twice the first
4. Last digit is twice the third
5. Sum of all digits is 18

33264.

There are several ways of solving this. One way is to represent each spot with a letter, A – E.

Then you have these equations:

A = B
D = 2 * A
E = 2 * C
A + B + C + D + E = 18

By simplifying, you get:

4 * A + 3 * C = 18

Plug in values for A and C to find that A = 3 C = 2.

Posted in Brain Teasers

4 Is Cosmic

1 is 3,
3 is 5,
5 is 4,
4 is cosmic.

What is 6? And what is meant by cosmic?

6 is 3 of course. Because six has three letters.

One = three letters
Three = five letters
Five = four letters
Four = four letters

Cosmic is a number that has the same number of letters as the value. Four is the only number I’m aware of that has this property.

Posted in Brain Teasers

Four Nines To Make a Hundred

How can you make four 9’s equal 100?

99 9/9 = 100

Posted in Brain Teasers

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.

Posted in Riddles
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Leaving Home

A man leaves home, turns left, goes straight, turns left again, goes straight and turns left once more then returns home and there’s another man with a mask on. What’s going on?

A baseball game.

Posted in Brain Teasers

The Hand of the Princess

A wise king devised a contest to see who would receive the Princess’ hand in marriage. The Princess was put in a 50 x 50 foot carpeted room. Each of her four suitors were put in one corner of the room with a small box to stand on. The first one to touch the Princess’ hand would be the winner and become the new King.

The rules were the contestants could not walk over the carpet, cross the plane of the carpet, or hang from anything; nor could they use anything but their body and wits (i.e. no magic, telepathy, nor any items such as ladders, block and tackles etc). One suitor figured out a way and married the Princess and became the new King. What did he do?

Asked the princess to touch his hand.

Posted in Brain Teasers

Aiden and Sofia Buying Candy

Aiden and Sofia were debating a major purchase of candy. They calculated that they could get three bags of jelly beans and two bags of chocolate for 24 cents, which was just under their limit of 25 cents. They found they could also get four bags of chocolate and two bags of jelly beans for the same 24 cents. How much did each bag of candy cost?

Jelly beans are 6 cents and chocolate is 3 cents.

Posted in Brain Teasers

Border Plane Crash

A plane crashed on the border or US and Canada. Where do they bury the survivors?

Nowhere, you don’t bury survivors.

Posted in Brain Teasers

Lies Behind Stars

It cannot be seen, it cannot be felt,
Cannot be heard, cannot be smelt,
Lies behind stars and under hills,
And empty holes it fills.
Comes first follows after,
Ends life kills laughter.

Darkness.

Posted in Riddles

Today Before Yesterday

I am a rare case where today comes before yesterday. What am I?

A dictionary

Posted in Riddles