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

The Empty Pocket

How can your pants pocket be empty but still have something in it?

It has a hole. The hole is the thing (although it could be argued a pocket has air, darkness or dust and so on).

Posted in Brain Teasers

How Can You Pass the Tree

A car is on a narrow road with a tree in the middle of it. How can the car pass the tree?

The tree is in the middle of the road as measured by length, not in the middle of it by width. In other words, the tree is growing on the side of the road, but it is equidistant from either end of the road, and therefore in the middle.

This makes it quite easy to pass the tree as you just drive on the road, unless you’re texting and you run into said tree. If this is the case, stop texting.

Thanks to everyone’s input on this one!

Posted in Brain Teasers

Mislabeled Boxes of Marbles

Three closed boxes have either white marbles, black marbles or both, and they are labeled white, black and both. However, you’re told that each of the labels are wrong. You may reach into one of the boxes and pull out only one marble. Which box should you remove a marble from to determine the contents of all three boxes?

The one labeled both. Since you know it’s labeled incorrectly, it must have all black marbles or all white marbles. After you determine what it contains, you can identify the other two boxes by the process of elimination.

Posted in Brain Teasers

lainws

What does this mean?

lainws

In-laws. The word in is found inside the word laws.

Posted in Brain Teasers
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Which Door First?

While driving his car a man slams on the brakes when he sees, in the middle of the street, a diamond studded door, a gold door and a silver door. Which door does he open first?

His car door

Posted in Brain Teasers

To Make In a Burning House

I am the best thing to make if you’re in a burning house. And you’d better make me quickly before the fire’s too hot to take.

Haste.  You need to make haste to get out of the burning house as soon as possible.

Posted in Riddles
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Messy Math

What is the answer to this problem?

48 / 2(9 + 3) = ?

It depends. Usually, math has one right answer, but in this case, the order of operations can get a little quirky.

There are two ways to solve this. First, like so:
48 / 2 × (9 + 3) = ?
48 / 2 × (12) = ?
24 × 12 = 288

But another, arguably valid way is:
48 / 2 × (9 + 3) = ?
48 / 2 × (12) = ?
48 / 24 = 2

Thanks to KnowYourMeme for providing a great overview on this one. Math StackExchange has more discussion.

Posted in Brain Teasers

I Build Up Castles

I build up castles.
I tear down mountains.
I make some men blind,
I help others to see.
What am I?

Sand.

Posted in Riddles

Sweet in the Sun

When young, I am sweet in the sun.
When middle-aged, I make you gay.
When old, I am valued more than ever.

Wine

Posted in Riddles