A hundred **stones** are **placed**, in a **straight** **line**, a yard distant from each other. How many yards must a person walk, who undertakes to pick them up, and **place** them in a basket stationed one yard from the first **stone**?

Halo of water, tongue of wood, skin of **stone**, long I've stood.
What am I?

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?

A precious **stone**, as clear as diamond.
Seek it out whilst the sun’s near the horizon.
Though you can walk on water with its power,
Try to keep it, and it’ll vanish in an hour.
What is it?

As a **stone** inside a tree, I’ll help your words outlive thee. But if you push me as I stand, the more I move the less I am.
What am I?

What is the value of 1/**2** of **2**/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

Jack had only $**2**, but he needed $3 for his cab fare home. He went to a pawn shop and pawned his $**2** for $1.50. Jack then bumped into Don and told him that he would sell him his $**2** pawn ticket for $1.50. Dan agreed. Since Jack started out with $**2**, and he ended up with $3, who is out the extra dollar and why?

If it takes 5 microwaves 5 minutes to cook 5 chickens, how long does it take **100** microwaves to cook **100** chickens?

Given two 2s, "plus" can be changed to "times" without changing the results: **2** + **2**= **2** x **2**.
The solution with three numbers is easy too: 1 + **2** + 3= 1 x **2** x 3.
Now find the answer for 4 numbers and for 5 numbers.

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211
?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every **place**. What am I?

If you pile up coins one on top of another until they get as high as the Empire State Building - would you be able to fit them all into one average sized room?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).

123 = 0
4235 = 0
656 = **2**
5390 = **2**
8890 = 6
1001 = **2**
19235 = 1
What is 123456789?

A new medical building containing **100** offices had just been completed. Mark was hired to paint the numbers 1 to **100** on the doors. How many times will Mark have to paint the number nine?

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.

1 duck saw 4 elephants as it was going toward the river.
Every elephant noticed **2** monkeys going to the river.
Every monkey was carrying 1 dove in its paws.
How many animals are going to the river?

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?

My teeth are sharp, my back is **straight**, to cut things up it is my fate. What am I?

This amazing ancient invention allowed people to see **straight** through walls. What was it?

If it takes 3 people to dig 1 hole how many people does it takes for 1/**2** an hole?

Soldiers **line** up, spaced with pride,
two long rows **lined** side by side.
One sole unit can decide,
if the rows will unite or divide.
What is it?

Like Solving Fun, Challenging Riddles?
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