Debbie’s Dragster

Debbie starts driving her dragster from rest and constantly accelerates to 60 mph in 10 seconds. How far does she travel in those 10 seconds?

1/12 mile

Ten seconds is 1/6 of a minute and 1 minute is 1/60 of an hour, so 10 seconds is 1/360 of an hour.

If you graph her trip with the speed on the y-axis and the time on the x-axis, you get a triangle with height of 60 mph and width of 1/360 of an hour. To calculate the area of the triangle, you multiply 1/2 × 1/360 × 60 = 1/12.

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.

Posted in Riddles
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What Has Roots Nobody Sees?

What has roots that nobody sees,
Is taller than trees,
Up, up it goes,
Yet it never grows?

A mountain (from Tolkien)

Posted in Riddles

Look At Me And Think of Yourself.

When you look at me,
You think of yourself.
I am always ready to talk
Whether times are easy or rough.

What am I?

A mirror.

Posted in Riddles

No Head On Which A Hat To Place

I always run but never walk,
I sometimes sing but cannot talk,
No head on which a hat to place,
You always look me in the face.

What am I?

A clock. It runs all the time, it “sings” for hourly chimes, cuckoos or alarms, it doesn’t have a head (but does have hands) and you look a clock in the face to tell the time.

Posted in Riddles

3661 Seconds Past Midnight

What is special about 3,661 seconds past midnight on January 1, 2001?

At the 3,661st second, the time and date can be written 01:01:01 01/01/01.

That is one cool date :)

Posted in Brain Teasers

The Start Of What You Might Conceive

I’m the start of whatever you might conceive.
Next I describe a Thanksgiving meal.
Last I transform to a state we all leave.

What am I?

begin, binge, being. Everything has a beginning, Thanksgiving dinner is known for being a meal of excessive consumption and the mortal state of being (or the state of a human being) is one which, for all our efforts to extend, will eventually end.

Posted in Riddles

Thanks, You’re Fired

A man is leaving on a business trip and stops by his office on the way to the airport. The night watchman stops him and says, “Sir, don’t take that flight. I had a dream last night that your plane would crash and everyone would die!” The business man cancels his trip and sure enough, the plane crashes, killing all the passengers. The man gives his watchman a $10,000 reward for saving his life, then fires him. Why?

Because his night watchman was sleeping on the job.

Posted in Brain Teasers

Mountain Covered With Snow

Why doesn’t a mountain covered with snow catch cold?

Because it has a snowcap. ;) I know, it was more joke than riddle, but I found it amusing.

Posted in Riddles

What State Is Round On One Side

What state is round on one side, high in the middle, and round on the other side?

Ohio. This one works a little better when spoken rather than read, but O is round, hi sounds like high and the last O is as round as the first.

Posted in Riddles