Secure Spy Transfer

You are a spy and need to send an item to a contact in another country without letting anyone else have access to it. All unlocked items will be opened in transit. How can you send this item securely?

Place a lock on the item and send it to your contact. They will place their own lock on the package and return it to you. You remove your lock and send it back. When they receive it, they can unlock the package and retrieve the item.

Posted in Brain Teasers

Where I Never Was

You saw me where I never was and where I could not be. And yet within that very place, my face you often see. What am I?

A reflection

Posted in Riddles

Having and Sharing

If you have it, you want to share it.
If you share it, you don’t have it.

What is it?

A secret.

Posted in Riddles

What Runs Around the Yard

What runs around the yard without moving?

A fence.

Posted in Riddles
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Three Five Six To One Hundred

Without changing the order of these numbers, how can they equal 100?

3 5 6 2 54 5

= 3 * (5 – 6) + 2 * 54 – 5
= -3 + 108 – 5
= 105 – 5
= 100

Posted in Brain Teasers

A Creature, Part Man

This creature, part man and part tree,
hates the termite as much as the flea.
His tracks do not match,
and his limbs may detach,
but he’s not a strange creature to see.

What is it?

A man with a wooden leg.

Posted in Riddles

B C D E I K O X Series

What other letter fits in the following series

B C D E I K O X ?

The letter H. It completes the list of letters that are vertically symmetrical. In other words, you can fold the top half of the letter over the bottom half and everything lines up.

Posted in Riddles

A Mile Long Train

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Two minutes. The back of the train would be at the beginning of the tunnel after 1 minute, and would leave the end of the tunnel at the 2 minute mark.

Posted in Brain Teasers

Apples and Lies

During lunch hour a group of boys from Mr. Bryant’s homeroom visited a nearby grocery store. One of the five took an apple.

Jim said, “It was Hank or Tom”.
Hank said, “Neither Eddie nor I did it.”
Tom said, “Both of you are lying.”
Don said, “No, one of them is lying, the other is speaking the truth.”
Eddie said, “No, Don, that is not true.”
When Mr. Bryant was consulted, he said, “Three of these boys are always truthful but two will lie every time.”

Who took the apple?

Tom took the apple
Jim was telling the truth
Hank was telling the truth
Tom was lying
Don was lying
Eddie was telling the truth
(three telling the truth and two lying)

Posted in Brain Teasers

Ex-Spouse’s Former Daughter-In-Law

What do you call your ex-spouse’s former daughter-in-law’s first husband’s daughter?

You can call them whatever you want, but they have no familial relationship to you.

Posted in Brain Teasers