Many Foods Make Me Strong

Many foods can make me strong but give me water and I won’t last long. What am I?

Fire.

Posted in Riddles

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.

Posted in Brain Teasers

1 2 3 4 5 6 7 8 9 = 100

This equation is incomplete: 1 2 3 4 5 6 7 8 9 = 100

One way to make it accurate is by adding seven plus and minus signs, like so.

1 + 2 + 3 – 4 + 5 + 6 + 78 + 9 = 100

How can you do it using only 3 plus or minus signs?

123 – 45 – 67 + 89 = 100

Posted in Brain Teasers

Fly In The Ear

One evening a man is walking home from work and an insect flies into his ear. He tries to pry it out but it doesn’t work. Shaking his head isn’t successful either. Finally he managed to get it out. How did he do it?

As soon as he got home, he shined a flashlight close to his ear and the insect, attracted by the light, flew toward it.

Posted in Brain Teasers

A Leathery Snake

A leathery snake,
With a stinging bite,
I’ll stay coiled up,
Unless I must fight.

A whip.

Posted in Riddles

I Used to Be The Light of Your Life

I used to be the light of your life,
I’d keep you warm while I cried,
Now I’m forgotten and tossed away.

What am I?

A candle. They used to be a primary source of light, and to a lesser extent heat. The “crying” is the wax rolling down the candle.

Posted in Riddles
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A Precious Thing to Most

A precious thing to most,
In order to take it,
You must already have it.

What is it?

Life.

By Sef Daystrom

Posted in Riddles

5 25 325 4325

Given

1 = 5
2 = 25
3 = 325
4 = 4325

What does 5 equal?

54325. Rather than being a mathematical solution, the answer is derived by prepending (putting in front of) the value on the left side of the equation with the previous answer. So for 3 you take 25, the previous answer, and put 3 in front, giving you 325. Then you put 4 in front to get 4325 and lastly, put 5 in front to get 54325.

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Five Three Two

What is the answer to the last equation?

5 3 2 = 151012
9 2 4 = 183662
8 6 3 = 482466
5 4 5 = 202504
7 2 5 = ?

10000 × (x × y) + 100 × (x × z) + transpose_digits(x × y + y × z)

transpose_digits() just swaps the digits

Posted in Brain Teasers

Eat Flush To

Eat flush to my nose tree times for they buy dead by too. What is the answer?

Eat (8) flush (plus) to (2) my nose (minus) tree (3) times (times) for (4) they buy dead by (divided by) too (2).

There are two answers depending on whether you calculate as you read or calculate the entire solution at the end.
8 + 2 = 10, – 3 = 7, x 4 = 28, / 2 = 14
or
8 + 2 – 3 x 4 / 2 = 10 – 6 = 4

Posted in Brain Teasers