250 Lbs Across the River

Two boys weighing 50 pounds each and their older brother weighing 100 pounds wish to cross a river. Their boat will only hold 100 pounds. How can they all cross the river in the boat?

Two 50lb boys cross, one comes back.
100lb boy crosses, other 50lb boy returns
Both 50lb boys cross.

Posted in Brain Teasers

A Bottle and a Cork

A bottle and cork cost $1.10. If the bottle costs a dollar more than the cork, how much does the cork cost?

Most people guess 10 cents, but $1 more than 10 cents is $1.10, which would mean the total cost would be $1.20, not $1.10.

The correct answer is 5 cents. If the cork costs 5 cents, then the bottle costs a dollar more, or $1.05, making the total cost $1.10.

Posted in Brain Teasers

A Final Screech

I saw a strange creature,
Long, hard, and straight,
Thrusting in a round, dark, opening,
Preparing to discharge its load of lives,
Puffing and squealing noises accompanied it,
Then a final screech as it slowed and stopped.

Note: This may not be appropriate for younger ages.

A subway train.

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Twice As Many Women As Children

At a party of thirty-five people there are twice as many women as children and twice as many children as men. How many of each are there?

20 women, 10 children and 5 men.

To figure it out, let m be the number of men and you get this equation:

4m + 2m + m = 35
7m = 35
m = 35 ÷ 7
m = 5

Posted in Brain Teasers

Finley’s Flaky Friends

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?

$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.

Posted in Brain Teasers

Apples Rebus

What does this represent?

APPLE
APPLE
APPLE
aPPLe
APPLE

I haven’t figured this out yet. Bad apple doesn’t really fit with the lowercase letters. They’re both vowels, but I don’t know if that’s relevant. The fourth one looks kind of like a hill, could it be apple hill?

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Favorite Pet is a Fish

I died and came back to life. My blood is not easily able to go through my body. My favorite pet is a fish. Who am I?

A shark. Sharks experience tonic immobility, also known as apparent death, where they appear to have died. Blood does not easily flow through their bodies, forcing sharks to swim continuously to circulate their blood. Lastly, sharks have pet fish called Remora (sometimes called suckerfish). They feed on parasites on the sharks and leftovers, and they use the shark as transport and protection.

A big thanks to Saravana for answering this.

Posted in Riddles

In the Sky But Also the Ground

I am in the sky but also in the ground. When you study me, no matter how long, I will always end with an f. I may be in your yard but not in your house. What am I?

A leaf.

Posted in Riddles

Holds Fast To The Center Of Everything

There is one word that stands the test of time and holds fast to the center of everything. Though everyone will try at least once in their life to move around this word, but in fact, unknowingly, they use it every moment of the day. Young or old, awake or in sleep, human or animal, this word stands fast. It belongs to everyone, to all living things, but no one can master it. The word is?

Gravity.

Posted in Riddles

The Person Who Makes It Sells It

The person who makes it, sells it.
The person who buys it never uses it.
The person who uses it doesn’t know it.

What is it?

A coffin.

Posted in Riddles