Riddles and Brain Teasers

On My Own I’m Twenty-Fourth

On my own I’m 24th,
Two of us and I’m 20,
Three of us and I’m 18.

What am I?

The letter X. It is the 24th letter of the alphabet, two Xs in Roman numerals equals twenty and triple x represents adult content, and adulthood is eighteen by law in most countries.

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Toss Me Out the Window

Toss me out of the window,
You’ll find a grieving wife,
Pull me back but through the door, and
Watch someone give life!

What am I?

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The letter “n”. (widow, donor).

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Head, Tail, Brown and No Legs

What has a head, a tail, is brown, and has no legs?

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A penny.

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Finley’s friends all chipped in to buy her a wedding gift. At first, ten friends agreed to contribute the same amount. Then two “friends” dropped out. The remaining eight had to add another dollar each to cover the cost of the gift. How much did the gift cost?

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$40.Let x be the amount the ten friends initially agreed to pay. We can then make the following equation:10x = 8x + 8Solving for x gives us $4, thus the gift cost 10 × $4, or $40.

$40.

Let x be the amount the ten friends initially agreed to pay. We can then make the following equation:

10x = 8x + 8

Solving for x gives us $4, thus the gift cost 10 × $4, or $40.

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The Average of Three

There are three numbers. The first two are 2/3 and 3/4.

What does the third number have to be to make the average of all three be 2?

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4 7/12In order for the average of three numbers to be 2, they must all add up to 6. That gives you this equation:
2/3 + 3/4 + n = 6Solve for n = 55/12, or 4 7/12.

4 7/12

In order for the average of three numbers to be 2, they must all add up to 6. That gives you this equation:
2/3 + 3/4 + n = 6

Solve for n = 55/12, or 4 7/12.

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Show Your Work

Solve this one carefully!

230 – 220 x 0.5 = ?

You probably won’t believe it, but the answer is 5! How can this be true?

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The answer is 120, and 5! = 5 × 4 × 3 × 2 × 1 = 120Credit to John May for this one.

The answer is 120, and 5! = 5 × 4 × 3 × 2 × 1 = 120

Credit to John May for this one.

Posted in Brain Teasers

Money Is Right Above My Reach

Money is right above my reach, I’m barely staying out of The Emergency Room (It is right below me), Room #3 is to my left, Room #5 is to my right with a 5% interest rate.

What am I?

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The number 4 key on a QWERTY keyboard. $ is money, ER (an abbreviation for Emergency Room) are the two letters immediately below the number 4 key, the #/3 key is to the left and the 5/% key is to the right.

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Tagged with What am I?