Riddles and Brain Teasers

What Can Be Swallowed

What can be swallowed, But can also swallow you?

Pride.

Posted in Riddles

Highest Product Using All Digits

What is the highest product that can be generated by multiplying two numbers while only using each digit once (1 through 9)?
For example, 12345678 * 9 = 111,111,102

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9642 * 87531 = 843,973,902

Posted in Brain Teasers

Ten Men’s Strength

Ten men’s strength,
Ten men’s length,
Ten men can’t break it,
Yet a young boy walks off with it.

What am I?

Show the answer »

A rope.

Posted in Riddles

You Twirl My Body

You twirl my body but I keep my head up high.
When I go in I keep things tight.

What am I?

Show the answer »

A screw.

Posted in Riddles

Tagged with What am I?

Reading Hexadecimal

How many people can read hexadecimal if only you and dead people can read it?

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57006The trick is that the word “dead” represents a number in hexadecimal. That number in base 10 is 57005, and adding one more to include yourself gives you: 57005 + 1 = 57006.

57006

The trick is that the word “dead” represents a number in hexadecimal. That number in base 10 is 57005, and adding one more to include yourself gives you: 57005 + 1 = 57006.

Posted in Brain Teasers

An Abandoned Aquarium

There is an abandoned aquarium in an empty house. The aquarium has three large fish and three small fish. But after a week, one large fish and two small fish die.

How many remain in the aquarium?

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Six, since no one is there to remove the 3 dead fish.

Posted in Brain Teasers

Aft to Fore and Fore to Aft

I run fore to aft on one side of a ship and aft to fore on the other. What am I?

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The name of the ship.

Posted in Riddles

Tagged with What am I?

Kevlar, Fire Escapes and Wipers, Oh My!

What do computer compilers, kevlar, fire escapes and windshield wipers all have in common?

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They were all invented by women.A variation of this brain teaser includes laser printers (they were invented by Gary Starkweather) and bulletproof vests (invented by Casimir Zeglen using silk, though modern vests use Kevlar, so it’s halfway right).

They were all invented by women.

A variation of this brain teaser includes laser printers (they were invented by Gary Starkweather) and bulletproof vests (invented by Casimir Zeglen using silk, though modern vests use Kevlar, so it’s halfway right).

Posted in Brain Teasers

A Perfect Gentleman

He was the perfect gentleman even though his nephew couldn’t see it. Who was he?

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A fine chap with a blind nephew (or an exemplary uncle who died before his nephew was born).

Posted in Brain Teasers

Can’t Be Touched, Can Be Felt

It can’t be touched, but can be felt.
It can’t be opened, but can be gone into.
Those who seek it always find it under something,
yet it moves from place to place.

Show the answer »

Shade. You can’t touch shade, but you can feel its coolness. You can’t open shade but you can go into it. If you’re looking for shade it always has to be underneath something to block the light and shade moves as the light does.Written by Sef Daystrom

Written by Sef Daystrom

Posted in Riddles

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