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

The Bookworm

A bookworm eats from the first page of an encyclopedia to the last page in a straight line. The encyclopedia consists of ten 1000-page volumes and is sitting on a bookshelf in the usual order. Not counting covers, title pages, etc., how many pages does the bookworm eat through?

        __                             __
      B|  |                           |  |F
      A|1 |...........................|10|R
      C|  |                           |  |O
      K|  |                           |  |N
       |__|                           |__|T
      -------------------------------------

On a book shelf the first page of the first volume is on the “inside”, so the bookworm eats only through the cover of the first volume, then 8 times 1000 pages of Volumes 2 – 9, then through the cover to the 1st page of Vol 10 for a total of 8,000 pages.

Note: The question asks how many pages, not how many sheets of paper.

Posted in Brain Teasers

A Woman Without All Her Fingers On One Hand

What do you call a woman who doesn’t have all her fingers on one hand?

Normal. Women (and men for that matter) have half of their fingers on one hand and half of them on the other.

Posted in Riddles

Find The Hidden Color

Find the color in each of these sentences.

1. Temper or anger are signs of weakness.
2. The money is for Edward.
3. You’ll find I got it elsewhere.
4. One dancer, I see, is out of step.
5. “I’m a gent and a lady’s man,” he said.

1. orange
2. red
3. indigo
4. cerise (This was a tough one)
5. magenta

Posted in Brain Teasers

Pitching On The Merry-Go-Round

Everly and I were playing on the merry-go-round at the local park. It was very large and we stood on opposite sides. As we spun the merry-go-round counter-clockwise, I threw a ball to Everly. Did the ball go to Everly, to the right or left of them?

Since the merry-go-round had moved while the ball was traveling to Everly the ball went to the right of them.

Posted in Brain Teasers

The Densest of My Clan

You ride on me every day but barely notice,
I’m hot and cold at the very same time,
I’m the densest of my clan,
And my first three help you enjoy music.

What am I?

Earth. Most people don’t stop to think that they’re hurtling through space on a huge planet. At any given time the Earth has burning hot magma and freezing arctics at the same time. The Earth is the densest planet and the first three letters, “ear” help you listen to music.

Posted in Riddles
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Moved Like the Tide

Dear Brother,
In the past, men believed
that it moved like the tide.
Till its movement desists,
we will always be this.

Blood.

By Sef Daystrom

Posted in Riddles

Lucky Number Seven

How is 7 different from the rest of the numbers from 1-10?

7 (seven) is the only one with two syllables.

Posted in Brain Teasers

Loud Linda

Linda is 31 years old, single, outspoken, and very bright. She majored in philosophy. As a student, she was deeply concerned with issues of discrimination and social justice, and also participated in anti-nuclear demonstrations.

Which is more probable?

1) Linda is a bank teller.
2) Linda is a bank teller and is active in the feminist movement.

1) Linda is a bank teller.

Most people guess number two, but the probability of two events occurring together is always less than or equal to the probability of either one occurring alone. This problem is known as the Conjunction Fallacy.

Posted in Riddles

Two Scruffy Dogs

Two scruffy dogs were walking down the street. The first dog turned to the other and said, “Do you realize that if one of your fleas jumped onto me we would have the same number of fleas?” The second replied, “Yes, but if one of your fleas jumped onto me I would have five times as many fleas as you.” How many fleas are on each dog to begin with?

2 and 4

Posted in Brain Teasers