What comes **once** in a **minute**, **twice** in a **moment**, but never in a thousand years?

The 15 **Minutes** Recipe

A recipe requires 15 **minutes** to cook. You have a 7 **minutes** hourglass and an 11 **minutes** hourglass with you. How will you measure 15 **minutes** using them?

The Hourglasses

If you have an 11 **minute** and 13 **minute** hourglass, how can you accurately time 15 **minutes**?

Google Riddles - The Sand Clocks

You have a 4 **minute** sand clock and a 7 **minute** sand clock, you need to measure 9 **minutes** while using both of them. What's your first move?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).

Crossing the Bridge

Four people need to cross a bridge in 17 **minutes** in the middle of the night. The bridge can only hold two or less people at any time and they only have one flashlight so they must travel together (or alone). The flashlight can only travel with a person so every time it crosses the bridge it must be carried back. Tom can cross in 1 **minute**, John can cross in 2 **minutes**, Sally can cross in 5 **minutes**, and Connor can cross in 10 **minutes**. If two people cross together they go as fast as the slower person.How can they cross the bridge in 17 **minutes** or less?

First On Earth, Second in Heaven

I am first on earth, the second in heaven.
I appear **twice** a week, though you only see me **once** in a year.
What am I?

Small But Of Force

I am small, but, when entire, of force to set a town on fire!
Let but one letter disappear, I then can hold a herd of deer;
Take one more off, and then you'll find, I **once** contained all human kind.

The Angle of the Clock

What's the angle between **minute** hand and hour hand at a quarter past three?

The One-Sided Toaster

Susan uses a toaster that has 2 slots. The toaster toasts one side of each piece of bread at a time, and it takes exactly 1 **minute** to do so.
If Susan wants to make three pieces of toast, what is the LEAST amount of time she needs to toast them on both sides?

Subtracting from 25

The Shooting Wife

A wife decides to shoot her husband. She does so, then holds him underwater for more than 5 **minutes**. Finally she hangs him. 10 **minutes** later they both go out to lunch. How is this possible?

A 2 Number Riddle

Take two numbers, such that the square of the first, plus the square of the second, shall equal 8; while the first, plus the product of the first and second, shall equal 6. What are the two numbers?

Cook and Throw Away

I turn around **once**,
what is out will not get in.
I turn around again,
what is in will not get out.
What Am I?

The US Presidents

How could the 22nd and 24th presidents of the United States have the same parents, but weren't brothers?

Turn and Turn

I turn **once**, what is out will not get in. I turn again, what is in will not get out. What am I?

Light as a Feather

I'm light as a feather, yet the strongest man can't hold me for more than a few **minutes**.
What Am I?

Square Plus Square

Take two numbers, such that the square of the first, plus the square of the second, shall equal 8; while the first, plus the product of the first and second, shall equal 6. What are the two numbers?

First thing in an emergency...

What is the first thing you see in an emergency but you only see it **twice** in a lifetime?

Wife Shoots Husband

A woman shoots her husband, then holds him under water for five **minutes**.
A little while later, they both go out for dinner and enjoy it very much.
How can this be?

The Handshakers

If seven people meet each other and each shakes hands only **once** with each of the others, how many handshakes will there have been?

A True Equation

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation.
Conditions: Each must be used exactly **once** and no other numbers or symbols can be used.

An Ant On a Rope

An ant gets onto one end of a tight rope that is 1 meter long. The ant is traveling at 1 centimeter per second, but the entire rope is being stretched an extra 1 meter (1,000 centimeters) a second (it can be stretched forever).
Will the ant ever reach the other end of the rope?

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