A Group of Three

I give you a group of three. One is sitting down, and will never get up. The second eats as much as is given to him, yet is always hungry. The third goes away and never returns.

Stove, fire, smoke.

Posted in Riddles

Longest Word Without Repeating Letters

What is the longest word without any repeated letters?

Uncopyrightable, with 15 letters and not a single one repeated. Dermatoglyphics, the study of fingerprints, works too.

Posted in Brain Teasers

I Make Men Crazy

I can make men crazy,
I shine when you retire.
I move water without a touch,
My colors may cause you ire.

The moon. The moon has a long association with being crazy (lunar being the basis for a lunatic). It shines at night, when you go to bed. The moon’s gravity creates the ocean tides and when the moon is different colors it can mean bad weather is on its way.

Posted in Riddles

Two Three Four Fifteen

What is the missing number?

2 3 4 15 12
3 4 5 28 20
4 5 6 45 30
5 6 7 66 42
6 7 8 ?? 56

91. To get the number in the fourth column, you add the numbers in column 1 and 2, then multiply by the number in column 2. f(n,m) = (n + m) * m
For example, f(2,3) = (2 + 3) * 3 = 15. Thus f(6,7) = (6 + 7) * 7 = 91

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Hot My Entire Life

I have been hot my entire life. Put me in water or in a freezer for days and I will still be hot. My red color should tell you but don’t be deceived, even when I’m green, I’m still hot. What am I?

A red or green laser. Red and green pepper also works.

Technically, the laser beam itself isn’t hot, but lasers can heat up what they’re shining on.

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Your Father’s Sister’s Sister-in-law

What relation would your father’s only single sister’s sister-in-law be to you?

Your mother.

Posted in Brain Teasers

Employ Rebus

What does this represent?

EMPLOY_ _ _ T

Men out of work.

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What Goes Up And Down But Doesn’t Move?

What goes up and down but doesn’t move?

A staircase. They go up and down, but you’re the one moving.

Posted in Riddles

New Door

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

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

Posted in Brain Teasers

Not Burned in Fire Nor Drowned in Water

What can’t be burned in a fire nor drowned in water?

Ice. It melts instead of burning in a fire and it floats in water.

Posted in Riddles