Come For a Ride

I go up, but at the same time go down,
Up toward the sky and down toward the ground,
I’m present tense and past tense too,
Come for a ride, just me and you.

What am I?

A see-saw.

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No New Digits

A six-digit number represented by ABCDEF (each letter represents a different number) can be multiplied by 2, 3, 4, 5, and 6 and yet no new digits appear in the result. As a matter of fact, all the digits are rotated. What is the number?

142857 (The first 6 digits of 1/7)

2 x 142857 = 285714
3 x 142857 = 428571
4 x 142857 = 571428
5 x 142857 = 714285
6 x 142857 = 857142

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Winning at Wimbledon

As a result of temporary magical powers, you have made it to the Wimbledon finals and are playing Roger Federer for all the marbles. However, your powers cannot last the whole match. What score do you want it to be when they disappear, to maximize your chances of hanging on for a win?

It sounds obvious that you should ask to be ahead two sets to love (it takes 3 out of 5 sets to win
the men’s), and in the third set, ahead 5-0 in games and 40-love in the sixth game. (Probably you
want to be serving, but if your serve is like mine, you might prefer Roger to be serving the sixth
game down 0-40 so that you can pray for a double fault.)

Not so fast! These solutions give you essentially 3 chances to get lucky and win, but you can
get six chances—with three services by you and three by Roger. You still want to be up two sets
to none, but let the game score be 6-6 in the third set and 6-0—in your favor, of course—in the
tiebreaker.

Credit goes to Peter Winkler for creating this.

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Look at My Face

If you look at my face you won’t see 13 in any place. What am I?

A clock face. It only has the numbers 1 through 12.

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Hear a Lot, Say a Lot

I hear a lot
And I say a lot
Few ever look for me
And even fewer ever hear me
I hide in plain sight
Whether its day or night
To help is all I want
But most like to bend me
And as if they had a wand
Never again shall anyone find me
They do this to control
Without realizing the high price of a soul
But when I’m least expected
They’d rather be protected
For there shall be no place to hide
What am I?

The truth.

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Rarely Touched, Often Held

I’m rarely touched but often held and if you’re wise you’ll use me well. What am I?

Your tongue.

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Black We Are And Much Admired

Black we are and much admired,
men seek us if they are tired,
We tire the horse, comfort man,
guess this riddle if you can.

Coal.

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Against the Rules for You to Play Fair

It’s against the rules for you to play fair,
I always win but you don’t care,
I’ve ruined lives and crushed dreams,
But the allure is too much it seems.

What am I?

A casino. If you use methods to make the odds more fair to you, they kick you out. The house always wins, yet people continue to play. Gambling has ruined countless lives and crushed dreams of making millions, but the hope of winning continues to draw people in.

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A Charming Dimple

There are two meanings to me. With one I may need to be broken, with the other I hold on. My favorite characteristic is my charming dimple. What am I?

A tie.

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A Bridge to Switzerland

During WWII, there was a bridge connecting Germany and Switzerland, and on the German side, there was a sentry tower with a guard in it. He would come out every three minutes to check on the bridge, and he had orders to turn back anyone who tried to get into Germany, and shoot anyone trying to escape without a pass. There was a woman who desperately needed to get into Switzerland, and she knew she didn’t have time to get a pass. It would take her at least six minutes to cross the bridge, but she managed to do it. How?

She walked on the bridge towards Switzerland for 3 minutes and just as the guard was about to come out, she turned around walking back to Germany. The guard saw her and asked for her pass but she didn’t have one and was sent back (or what the guard thought was back) to Switzerland. In her case it was the very country she wanted to go to.

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