My Daughter’s Father

I am a faithful wife who married but once. John’s son is my daughter’s father. What is my relationship to John?

Daughter-in-law. Her daughter’s father is her husband (she’s only been married once and is devoted, meaning she didn’t have an affair). This means John’s son is her husband, so John is her father-in-law, making her the daughter-in-law.

Posted in Brain Teasers

Flowers, Families and Streets

Five kinds of flowers grow in separate gardens on five different streets. Here is what you know:

1. The Smiths do not grow violets.
2. The Morgans grow peonies and do not live on 2nd street.
3. The Parks live on 3rd street.
4. Begonias bloom on 4th street.
5. Roses do not grow on 5th street.
6. The Johnsons do not live on 1st street.
7. The Rosens do not grow daffodils
8. The Johnsons grow roses
9. Daffodils grow on 1st street

Which flowers grow on in whose gardens on what streets?

1st street: Smiths, daffodils.
2nd street: Johnsons, roses.
3rd street: Parks, violets
4th street: Rosens, begonias
5th street: Morgans, peonies.

Posted in Brain Teasers

24 from 9, 6, 11 and 3

How do you get 24 from 9, 6, 11 and 3 using addition, subtraction, multiplication or division?

There are multiple solutions.

(6 – 3) × 11 – 9

(11 – 6) × 3 + 9

(9 – 6) × (11 – 3)

Posted in Brain Teasers

For Our Ambrosia

For our ambrosia we were blessed,
By Jupiter, with a sting of death.
Though our might, to some is jest,
We have quelled the dragon’s breath.

Who are we?

Bees.

Posted in Riddles

Around the House Without Touching It

What goes around and in the house, but never touches the house?

The sun.

Posted in Riddles

A Fox, Chicken and Sack of Grain

You have a fox, a chicken and a sack of grain. You must cross a river with only one of them at a time. If you leave the fox with the chicken he will eat it; if you leave the chicken with the grain he will eat it. How can you get all three across safely?

Fox and (little) chicken

Take the chicken over first. Go back and bring the grain next, but instead of leaving the chicken with the grain, come back with the chicken. Leave the chicken on the first side and take the fox with you. Leave it on the other side with the grain. Finally, go back over and get the chicken and bring it over.

Posted in Brain Teasers

Words With Many Faces

My letters become three faces,
One has gone to far away places,
Another sets a standard high,
The third can never be a guy.

What are the three words?

Sailed, ideals and ladies.

Posted in Brain Teasers

Longest Word Without Repeating Letters

What is the longest word without any repeated letters?

Uncopyrightable, with 15 letters and not a single one repeated. Dermatoglyphics, the study of fingerprints, works too.

Posted in Brain Teasers

A Laugh A Cry

A laugh, a cry,
A moan, a sigh.

What am I?

Emotions

Posted in Riddles

Code in the Cold

Last winter I found myself locked out of my house because I couldn’t remember the 5-digit code to open the garage door. I used the following facts to get inside.

1. The second and third digits add up to 9.
2. The first digit is equal to the second digit cubed.
3. The sum of the third and fifth digits is the smallest number with exactly five divisors.
4. The fourth digit is equal to 6 times the second-to-last digit.
5. None of the digits repeat.

What was the code?

82709

If we label each digit a, b, c, d and e, we get the following equations.
1. b + c = 9
2. a = b3
3. c + e = 16 (since 16 is the smallest number with five divisors – 1, 2, 4, 8 and 16).
4. d = 6 * d (The fourth and second-to-last digits are the same number, meaning d must be zero to satisfy the equation)
5. b must be zero, one or two (b can’t be three because that makes a=27, which isn’t a single digit). Zero and one result in duplicate digits (00907 and 11808 respectively) so the only remaining value for b is 2, giving us 82709 and warmth.

Posted in Brain Teasers