Friday, December 17, 2010

Thinking of Summer Fondly

There was a green house.
Inside the green house there was a white house
Inside the white house there was a red house.
Inside the red house there were lots of babies.

Thursday, December 16, 2010

How Creative Can You Get

Show how it is possible to determine the height of a tall building with the aid of a barometer.

Oh, and do not use any formulas regarding pressure. (Hint below)

Hint: You can use other tools as long as you also use the barometer.

Wednesday, December 15, 2010

Since Physics Was So Easy Yesterday

It is generally accepted that matter expands with increasing temperature, and contracts with decreasing temperature. There is one notable exception. Which is it, and why has nature provided for it?

Tuesday, December 14, 2010

Do Not Try This at Home

A man holds a rifle horizontally 6 feet above the ground. At the moment he fires it, another bullet is dropped from the same height, 6 feet. Which bullet hits the ground first?

For the physics-minded among you, ignore friction and the curvature of the earth.

Monday, December 13, 2010

Tricky Flying

Consider a road with two cars, at a distance of 100 kilometres, driving towards each other. The left car drives at a speed of forty kilometers per hour and the right car at a speed of sixty kilometers per hour. A plane starts at the same location as the right car and flies at a speed of 80 kilometers per hour. When it reaches the left car it turns its direction, and when it reaches the right car it turns its direction again to the opposite, etcetera.

The Question: What is the total distance that the plane has traveled at the moment that the two cars have reached each other?

Friday, December 10, 2010

Who is Buried in Grants Tomb

King George(?) VI Image via Wikipedia
Which country makes Panama hats?

In which month do Russians celebrate the October Revolution?

What was King George VI's first name?

From which animal do we get catgut?

The Canary Islands in the Pacific are named after what animal?

Thursday, December 09, 2010

Those Nephews Are Always Causing Trouble

A man and his sister were out walking together one Saturday morning. The man pointed across the street to a boy and said: ‘That boy is my nephew.’ The woman replied: ‘He is not my nephew.’

How can this be true?

Wednesday, December 08, 2010

What is the product (ie. Multiplying all the numbers together) of the following series: (x-a),(x-b),(x-c),.....(x-z)?

Friday, December 03, 2010

Party Time

Lisa's mom was throwing a party for her daughter but got so caught up in doing the serving and the cleaning that she totally forgot how many kids came to the party.  Based on the trash, she knows that 10 kids had juice, 8 kids had cake, and six kids had both.

How many kids were there at the party?

Adapted from: Brain Teasers: 211 Logic Puzzles, Lateral Thinking Games, Mazes, Crosswords, and IQ Tests to Exercise Your Mind and Keep You Sharp 'til You're 100 (Brain Teasers Series)

Thursday, December 02, 2010

Strange Hands

Two men play a game of draw poker in the following curious manner. They spread a deck of 52 cards face up on the table so that they can see all the cards. The first player draws a hand by picking any five cards he chooses. The second player does the same.

The first player can now keep his original hand or draw up to five cards. His discards are put aside out of the game. The second player may now draw likewise. The person with the higher hand then wins.

Suits have equal value, so that two flushes tie unless one is made of higher cards.

After a while the players discover the first player can always win if he draws his first hand correctly. What hand must this be?

This is from : My Best Mathematical and Logic Puzzles (Math & Logic Puzzles)
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