Hidden Animals

How many animals can you find in this story?

“Scram, you can’t catch me!” yelled the thief. While running to escape, his shirt skewered a box of nails. He ripped free, but skidded to a stop as he passed a policeman. He tried to run again, then cowered in fright. Crime doesn’t pay.

I found thirteen, listed in the order they’re found.

1. ram
2. ant
3. cat
4. ape
5. ewe
6. ox
7. kid
8. ass
9. man
10. nag
11. hen
12. cow
13. doe

Posted in Brain Teasers

Never For Breakfast

What two things can you never have for breakfast?

Lunch and dinner.

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

Hidden Gems

Find the names of 10 gems or precious stones hidden in the following story. Each one spans at least two words.

Sir Gade rode toward a castle atop a zebra at a steady gallop, a long way from home. He arrived at the gate and the keeper knelt in shame. “Thy steed must be tired.” Sir Gade replied, “I am on direct orders from the King. Let me through.” A cougar, nettled by the noise, emerged from a shrub. “You must save me!” cried the gate man. Sir Gade, eyes filled with rancor, alighted and gazed toward the sky. An item fell from his cloak as drove his sword into the cougar’s spine. “Let me pass!” cried Sir Gade. The gate keeper, stunned from his saga, tentatively opened the gate, then retrieved the fallen item.

1. topaz – “atop a zebra”
2. opal – “gallop, a long”
3. amethyst – “shame. Thy steed”
4. diamond – “replied, I am on direct”
5. garnet – “cougar, nettled”
6. ruby – “shrub. You”
7. coral – “rancor, alighted”
8. kyanite – “sky. An item”
9. spinel – “spine. Let”
10. agate – “saga, tentatively”

Sir Gade rode toward a castle atop a zebra at a steady gallop, a long way from home. He arrived at the gate and the keeper knelt in shame. “Thy steed must be tired.” Sir Gade replied, “I am on direct orders from the King. Let me through.” A cougar, nettled by the noise, emerged from a shrub. “You must save me!” cried the gate man. Sir Gade, eyes filled with rancor, alighted and gazed toward the sky. An item fell from his cloak as drove his sword into the cougar’s spine. “Let me pass!” cried Sir Gade. The gate keeper, stunned from his saga, tentatively opened the gate, then retrieved the fallen item.

Posted in Riddles

Born In December

Dustin was born on December 28th yet his birthday always falls in the summer. How is this possible?

Dustin is Australian, where the three hottest summer months are December, January and February.

Posted in Brain Teasers

If My Hand Is Forced I Can Sink Ships

I move quickly with hurried steps,
If my hand is forced I can sink ships,
I’ll cause you to shudder when driving your car,
And haul your fuel to where you are,
I’ll watch you bleed from a cut,
Add a rear and I’ll tell you what’s what.

What am I?

Scuttle. To scuttle is to scurry or run hurriedly. Scuttling is the deliberate sinking of your own ship. Scuttle shake is felt in convertibles where the passengers feel a distinct shudder. A coal scuttle is a bucket-like container to haul coal. A shaving scuttle holds hot water when you’re shaving. And adding a “rear” forms scuttlebutt, or rumors and gossip.

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

Twice the Sum of Its Digits

What number is twice the sum of it’s digits?

18.

1 + 8 = 9
2 × 9 = 18

Posted in Brain Teasers

False Positive HIV Test

Imagine an HIV test that is 95% accurate (false positive rate of 5%) and around 2% of the tested population is infected with HIV. What is the probability that you actually have HIV when your test comes back positive?

29%

To read more about this, see the False Positive Paradox page on Wikipedia.

Posted in Brain Teasers

If I Didn’t Exist, You Wouldn’t Either

I’m a six-letter word. If I did not exist, you wouldn’t either. With my first letter omitted I’m an alternative. The last three letters are feminine. The first four letters make an insect.

Who am I?

Mother

other = an alternative
her = feminine
moth = an insect

Posted in Riddles