The Doors of Nine

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?

Finish this sequence top to bottom...

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

Between 3 and 4

What can you stick between a 3 and a 4 so that the result is more than three but less than four?

The Wheel and the Spokes

if a wheel has 64 spokes, how many spaces are there between the spokes?

Reversed Age

The ages of a father and son add up to 66. The father's age is the son's age reversed. How old could they be?
* There are THREE possible solutions

Google Riddles - The Surprise Box

You have 3 boxes. One of them contains a prize. You were allowed to pick just one of them.
You pick - and it's empty.
With 2 boxes left, you now have one box in your hand and another box in front of you. If given the chance to exchange your box with the box in front of you, would you do it? Why, and why not?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).

Google Riddles - The Return Flight

Today is more windy than yesterday, will a return flight take the same time, less time, or the same amount of time to complete?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).

Google Riddles - The Big Hand and the Small Hand

What is the angle between the big hand and the small hand when the time is 3:15?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).

The Julius Caeser Box Riddle

What does this message say? Can you decipher it?
G T Y O R J O T E O U I A B G T

The Word in the Matches

The Shadows of Graphs

Look carefully at these graphs, can you find the actual height of the red bar?

The Weight of Soap

We have two soap of equal weights and a 3/4 pound weight.
However, after using 1/4 of soap we place all three objects on balance as On one side of balance we place one soap (unused) and on another side, we placed used soap (i.e 3/4th of soap) and 3/4 pound weight.
What is the soap weight?

The Number Pyramid

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?

Giving Away Vegetable Oil

You are distributing vegetable oil. There are 21 bottles in total out of which 7 are full, 7 half empty and 7 empty. The oils has to be distributed among three people.
How will you distribute so that each person gets equal number of bottles and the same quantity of oil?

The Hard Triangle Riddle

This is a hard one: How many triangles are in this complicated picture?

The Bracelet and the Sales Tax

Casey buys a bracelet. She pays for the bracelet and pays $0.72 in sales tax. The sales tax rate is 6%.
What is the original price of the bracelet, before tax?

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?

The Hourglasses

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

Making Cigarettes

A hobo picks up cigarette butts from the ground and can make a cigarette with 4 butts. If he finds 16 cigarette butts, how many cigarettes can he make?

The Book Shelf

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

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?

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.

The Meeting of Planes

There are two planes. One is going from Los Angeles to Japan at a speed of 600 MPH. The other is traveling from Japan to Los Angeles at a speed of 500 MPH.
When the planes meet which one will be closer to Japan?

An Egg to a Friend

Mike has some chickens that have been laying him plenty of eggs. He wants to give away his eggs to several of his friends, but he wants to give them all the same number of eggs. He figures out that he needs to give 7 of his friends eggs for them to get the same amount, otherwise there is 1 extra egg left.
What is the least number of eggs he needs for this to be true?

The Angle of the Clock

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

Random Answer

If you randomly choose one of the following answers to this question, what is your chance of getting it right?
A) 50%
B) 25%
C) 0%
D) 25%

5 Pirates Find Gold

5 pirates are parting ways after finding a treasure of 100 pieces of gold. The pirates decide to split it based on a vote. Each pirate, from oldest to youngest, gets to propose a plan on how to split the gold.
If at least 50 percent of the other remaining pirates agree on the plan, that is how they will split the gold. If less than 50 percent of the pirates agree, the pirate who came up with the plan will be thrown overboard. Each pirate is smart, greedy, and wants to throw as many others overboard as possible without reducing the amount of gold they get.
What plan can the first (oldest) pirate propose to live and get as much gold as possible?