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

ABCD equals DCBA

What 4-digit number abcd satisfies this equation?

4 × abcd = dcba

2178

4 × 2178 = 8712

Posted in Brain Teasers

I Can Kill People

I can kill people, or cause great pain.
You eat me.
I can mean you’re crazy.
I hold things together.
I help climbers stay safe.
I can replace a swear.
And I’m on a violin.

What am I?

Nuts.

People with nut allergies can die from eating nuts. Being hit in the nuts hurts (I speak from experience. Painful, painful experience). You eat nuts (unless you’re allergic, in which case you should run away). If someone says you’re nuts, it doesn’t mean you’re a peanut or an almond. Nuts and bolts hold things together. A climber’s nut or chock wedges into a rock. Instead of swearing, you can say, “Aww nuts!”. And finally, the nut on a violin is a small piece of hard material that supports the strings.

Posted in Riddles
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This Is What Some People Do

This is what some people do,
For a compliment or two,
Anglers do it on a bank,
Others keep theirs in a tank.

What am I?

A fish. Some people fish for compliments, anglers are fishermen and fish live in a tank.

Posted in Riddles
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Animals On the Ark

How many of each animal did Moses take on the ark?

None. Moses didn’t have an ark, Noah did (and yes, he took 2 of each animal).

Posted in Brain Teasers

Toss Me Out the Window

Toss me out of the window,
You’ll find a grieving wife,
Pull me back but through the door, and
Watch someone give life!

What am I?

The letter “n”. (widow, donor).

Posted in Riddles

Tongue Can’t Taste, Throat Can’t Swallow

What has a tongue that can’t taste, a throat that can’t swallow, eyes that can’t see and a soul that will never die?

A shoe. It has a tongue, a throat, eyes (or eyelets) and a sole. I used soul here or else it would have given the answer away, but this riddle works best when told rather than read. And as the joke goes, old shoes never die, they just lose their sole.

Posted in Riddles

One By One We Fall From Heaven

I can be long, or I can be short.
I can be grown, and I can be bought.
I can be painted, or left bare.
I can be round, or square.
What am I?

Sands in an hourglass.

Posted in Riddles

Up a Drainpipe Down but Not Down a Drainpipe Up

What can go up a drainpipe down but not down a drainpipe up?

An umbrella.

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The Ages of a Prince and Princess

A princess is as old as the prince will be when the princess is twice the age that the prince was when the princess’s age was half the sum of their present ages.

What are their ages?

This one took a while to figure out and there are numerous valid ways of finding the answer.

Here is the solution I came up with

I created the following table from the riddle:

 CurrentFuturePast
Princessx2z(x+y)/2
Princeyxz

I then created three equations, since the difference in their age will always be the same.
d = the difference in ages
x – y = d
2z – x = d
x/2 + y/2 – z = d

I then created a matrix and solved it using row reduction.

xyz
1-10d
-102d
.5.5-1d

It reduced to:

xyz
1004d
0103d
0015d/2

This means that you can pick any difference you want (an even one presumably because you want integer ages).
Princess age: 4d
Prince age: 3d

Ages that work

PrincessPrince
43
86
1612
2418
3224
4030
4836
5642
6448
7254
8060

To see other solutions check out the comments from when I posted this on my blog.

Posted in Brain Teasers