Highest Product Using All Digits

What is the highest product that can be generated by multiplying two numbers while only using each digit once (1 through 9)?
For example, 12345678 * 9 = 111,111,102

9642 * 87531 = 843,973,902

Posted in Brain Teasers

Three Kinds of Apples

Three kinds of apples are mixed randomly in a box. How many apples must you take out to be sure of having at least two apples of one kind?

Four. If the apples are A, B, and C, it’s possible that you could take out one A, one B and one C with three apples, but the fourth apple must be one of the three kinds.

Posted in Brain Teasers

I Go In Hard

I go in hard.
I come out soft.
You blow me hard.
What am I?

Note: This may not be appropriate for younger ages.

Gum. What? You had another guess?

Posted in Riddles
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Break, Light, May

What word can be added before or after these words to make a new word or phrase?

Break, Light, May

Day. Daybreak, daylight, may day.

Posted in Riddles

Three Letter Word Completion

What three letter word can complete the below words?

B___
D___
M___ET
P___ING
SH___

Ark, which produces: bark, dark, market, parking, shark.

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You’ll Never See It Again

What day will you never see again?

Yesterday.

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amid eerie nighed won spawn

What phrase do these words sound like when rearranged?

amid eerie nighed won spawn

“Won spawn amid nighed eerie” sounds like, “Once upon a midnight dreary”, from The Raven by Edgar Allan Poe.

Posted in Brain Teasers

A Face But No Eyes

I have a face but no eyes. Hands but no arms. What am I?

A clock.

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I Drift Forever With The Current

I drift forever with the current
down these long canals they’ve made
Tame, yet wild, I run elusive
Multitasking to your aid.
Before I came, the world was darker
Colder, sometimes, rougher, true
But though I might make living easy,
I’m good at killing people too.

Electricity (or lightning).

Posted in Riddles

Black, Red and White

What’s black when you get it, red when you use it, and white when you’re all through with it?

Charcoal.

Posted in Riddles