A Circular Island

A circular island with a diameter of 30 feet has a 30 foot tree stands at the center. A man cuts the tree down with his chainsaw, making the cut a foot up from the ground. The tree comes crashing down and hits the water but doesn’t splash. Why not?

It’s winter and the water is frozen.

Posted in Brain Teasers

Crazy Taxi Driver

A taxi driver runs through four red lights, two stop signs and goes through a house. A police officer witnesses this but doesn’t do anything. Why not?

The taxi driver is not in his cab, he’s out for a run. The house he went through was his own because he was done running.

Posted in Brain Teasers

Alphonso and Sadie

Alphonso and his sister Sadie are entering the airport to meet their mother when Sadie gasps in surprise and says to her brother, “You see that man in the crowd over there?”

Alphonso replies, “It’s Bernie. I don’t believe it. Let’s go introduce ourselves.”

Neither of them had ever met Bernie before. They’d never seen a picture or painting of him, nor was he a famous celebrity.

How was this possible?

Alphonso was born as a twin, but he was separated from his twin brother at birth. Bernie is Alphonso’s identical twin, which is how Sadie was able to recognize him in the crowd.

This is kind of a cheat, because there are probably other possible explanations. But we can’t have everything :)

Posted in Brain Teasers

A Word of Weather

Find this eight-letter word.

The first four letters are a variation of the weather.
The third through seventh letters give support but also could used when someone is executed.
And the last three letters forms the name of a person.

What’s the word?

Mistaken.

Mist = Variation of weather.
Stake = a tent stake or when someone is burned at the stake.
Ken = a person’s name.

Posted in Riddles

A House With No Doors

I am in a house with no doors. There are people inside but give no reply. Who am I?

A fish. A fish bowl or aquarium is the fish’s house and the people inside are the decorative divers that offer no reply (one might ask how the fish knows, given that they aren’t a talkative bunch themselves).

Posted in Riddles

I Met An Old Man On London Bridge

I met an old man on London bridge,
As the sun set on the ridge,
He tipped his hat and drew his name,
And cheated at the guessing game.

What was the man’s name?

Andrew. In the third line, “and drew his name”. It works better when you say it since the spelling is a bit off when written.

Posted in Riddles

Next Month In the Sequence

What month comes next in this sequence?
July June March May ???

November, the next month in alphabetical order starting with July.

Posted in Brain Teasers

Four Colored Balls in Gym Class

Four different-colored balls are being used in a gym class activity – blue, red, yellow and orange. Each student must hold two different-colored balls, but no two students can have the same two colors (for example, only one student can hold the blue and red ball).

How many students can play the game?

Six. If you prefer math, you can calculate it as 4 combination 2

4! / (2!)^2
24 / 4 = 6

Or you can work it out manually:

1. Blue Red
2. Blue Yellow
3. Blue Orange
4. Red Yellow
5. Red Orange
6. Yellow Orange

Posted in Brain Teasers

The Sheep’s Will

A farmer dies leaving a will dividing his flock of nineteen sheep with the following ratios:

Half to his oldest son, a quarter to the middle son and one fifth to his youngest son.

Without cutting any sheep up, how did the executor of the will fulfill the farmer’s wishes?

The executor went to the neighbouring farm and asked to borrow a sheep for a few minutes. Then he returned to the sons and said, “Half of the (now) twenty sheep is 10. A quarter of the twenty sheep is 5. A fifth of the twenty sheep is 4. 10 + 5 + 4 = 19. Then the executor took the borrowed 20th sheep back to the neighbour.

Thanks to Annette for sending this in.

Posted in Brain Teasers

Six Nine Twenty-Seven

What is N?

6, 9, 27, 54, N, 2241

675.

The next number in the sequence is n squared minus m or f(n,m) = n2 – m
f(6,9) = 62 – 9 = 27
f(9,27) = 92 – 27 = 54
f(27,54) = 272 – 54 = 675
f(54,675) = 542 – 675 = 2241

Posted in Brain Teasers
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