A Third As Old

Barry is 67 years old. His daughter is 43. When was she 1/3 as old as him?

31 years ago.

Here’s one way to solve it.

Let x = how many years ago

We get this equation: 67 – x = 3 × (43 – x)

Solving for x gives us 31.

Posted in Brain Teasers

Sleeping Killer

A man gets ready for bed at 9:45 pm. He makes himself a drink, then turns off the TV and the lights. The night was windy and there was a major storm. The next day he discovers he was the cause of seven deaths. How is this possible?

He lived in a lighthouse as lighthouse keeper. He turned off all the lights by accident, so a ship with 7 passengers couldn’t negotiate the rocky shores. One would think the light switches in a lighthouse would be more clearly marked.

Posted in Brain Teasers

Where do the Numbers Belong?

Three numbers, 16, 14 and 38, need to be assigned to one of the rows of numbers below. Where do the numbers belong?

A06893
B1527211019
C71471117

Hint: This is not a mathematical problem. The numerical values are irrelevant.

The rows indicate the shape of the number. Row A is rounded, B is mixed and C is linear. Thus, 16 belongs in row B, 14 in row C and 38 in row A.

Posted in Brain Teasers

Word Party

You watch a group of words going to a party. A word either enters through one of two doors or is turned away by the guards. ‘HIM’ goes through door number one and ‘BUG’ goes through door number two. ‘HER’ is turned away. ‘MINT’ and ‘WEAVE’ go in through door one, ‘DOOR’ and ‘CORD’ take door two and ‘THIS’ and ‘That’ aren’t allowed in.

What determines whether a word can enter and which door they must use?

Door number one is for words composed entirely of capital letters written using only straight lines, such as A, E, F, H, and I. The entire set of letters allowed through door number one are AEFHIKLMNTVWXYZ. Door number two, as might be expected, is for words with capital letters that have a curve, including BCDGJOPQRSU. Any words composed of both straight and curved letters (or lowercase letters) are not allowed in. The word ‘THAT’ would have been sent through door number one, if the letters had been capitalized.

Posted in Brain Teasers

Turning the Years Upside Down

What years from the 1900s and 1800s are the same year when read upside down?

1961 and 1881.

Posted in Brain Teasers

Made of Ten But Two We Make

Made of ten but two we make,
When assembled others quake,
Five apart and we are weak,
Five together havoc wreak.

What are we?

A fist.

Posted in Riddles

Paula and Quincy

Paula had four times the money that Quincy had, but after Paula gave Quincy $33, Quincy had 3 times as much as Paula.

How much did they each start with?

Paula had $48 and Quincy had $12.

If Q is the amount Quincy had, then 3(4Q – 33) = Q + 33

Solved, Q = 12.

Posted in Brain Teasers

Say My Name

Say my name and I disappear. What am I?

Silence.

An alternate version is, “What is so fragile it breaks when you say its name?”

Posted in Riddles

I Tell You When to Start

I tell you when to start,
Or remind if you forget.

I smash others to break them apart,
But I’m pushed by another of me.

What am I?

Cue. A cue tells you when to start, or if you forget your lines in a play. A cue ball is used to break at the beginning of a game of pool and the cue stick is used to push the cue ball on the break.

Another interesting tidbit is that cue is how you spell the letter q if you’re writing it out.

Posted in Riddles
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Two Days of the Week Starting With T

What two days of the week start with ‘T’, other than Tuesday and Thursday?

Today and tomorrow.

Posted in Riddles