A Trapped Flock of Birds

A flock of birds are trapped in a delivery truck. When would the truck weigh the most?

a) When the birds are resting on the floor
b) When they’re all flying
c) The weight remains the same

c – The weight doesn’t change since it’s a closed system.

Posted in Brain Teasers

Kevin’s School Supplies

Kevin brings his school supplies to the counter. The cashier rings up his purchase for a total of $1.70. Kevin is puzzled, and says, “I bought 2 pencils at 2 cents each, 5 pencils at 4 cents each and 8 notebooks and 12 sheets of colored paper. I don’t remember the prices of the latter two, but the total can’t be $1.70.”

How did Kevin know?

Because 4 cents, 20 cents, 8 notebooks and 12 sheets of colored paper are all divisible by 4, but 170 cents isn’t.

Posted in Brain Teasers

Show Your Work

Solve this one carefully!

230 – 220 x 0.5 = ?

You probably won’t believe it, but the answer is 5! How can this be true?

The answer is 120, and 5! = 5 × 4 × 3 × 2 × 1 = 120

Credit to John May for this one.

Posted in Brain Teasers

Stan’s Birthday

Phil asks his friend Stan when his birthday is. Stan replies that he was 32 the day before yesterday and next year he’ll be 35. When is his birthday and how is this possible?

Today is Jan 1st and his birthday is on December 31st. He was 32, then turned 33 on Dec 31st, and this year on Dec 31st he’ll turn 34, so next year he’ll be 35.

Posted in Brain Teasers

I Run Up The Stairs

I run up and down the stairs without moving. What am I?

A rug.

Posted in Riddles
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Coffee

What does this represent?

COF FEE

Coffee break. The word coffee is broken into two pieces.

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New Door

Rearrange the letters in the words “new door” to make one word.

“new door” can be rearranged into “one word”

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A Most Unusual Paragraph

This is an unusual paragraph. I’m curious as to just how quickly you can find out what is so unusual about it. It looks so ordinary and plain that you would think nothing was wrong with it. In fact, nothing is wrong with it! It is highly unusual though. Study it and think about it. You still may not find anything odd. But if you work at it a bit, you might find out. Try to do so without any coaching.

The letter “e” is the most common letter in the English language, yet it never appears in the entire paragraph.

Posted in Brain Teasers

Ethan’s Grand Night Out

Ethan was going for a night out but his key fob battery had died and the button wouldn’t unlock his car door. How was he able to get in?

He used the key embedded in the key fob.

Posted in Brain Teasers

Whoever Makes Me Can Hear Me

Whoever makes me can hear me, but to all others I’m silent. What am I?

A thought in your head. You can hear it, but no one else can. Unless you read minds, but then you’d have bigger problems, like figuring how how to remain sane in large crowds.

Posted in Riddles
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